ANNUAL REPORT

 UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549

 FORM 10-K

 (Mark One)

 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934

 For the fiscal year ended December 31, 2023

 or

 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

 For the transition period from ________ to ________

 Commission File Numbers: 333-111858-01, 001-32156

Central Index Key Number: 0001286405

 Synthetic Fixed-Income Securities, Inc.

 on behalf of:

 STRATS Trust For
United States Cellular Corporation Securities, Series 2004-6

 (Exact name of registrant as specified in its charter)

 Delaware

 52-2316339

 (State or other jurisdiction of incorporation

or organization)

 (I.R.S. Employer Identification No.)

 30 Hudson Yards, 14 th Floor, New York, New York

 10001-2170

 (Address of principal executive offices)

 (Zip Code)

 Registrant's telephone number, including area code: (212) 214-6289

 Securities registered pursuant to Section 12(b) of the Act:

 Title of Each Class

 Trading Symbol(s)

 Name of Each Exchange on which Registered

 STRATS Certificates, Series 2004-6, Class A-1

 N/A

 New York Stock Exchange ("NYSE")

 Securities registered pursuant to Section 12(g) of the Act: None

 Indicate by check mark if the registrant is a well-known seasoned issuer,
as defined in Rule 405 of the Securities Act.

 Yes No

 Indicate by check mark if the registrant is not required to file reports
pursuant to Section 13 or Section 15(d) of the Act.

 Yes No

 Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter
period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

 Yes No

 Indicate by check mark whether the registrant has submitted electronically
every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the
preceding 12 months (or for such shorter period that the registrant was required to submit such files).

 Yes
No

 Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions
of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging
growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated filer

 Accelerated
filer

 Non-accelerated filer

 Smaller
Reporting Company

 Emerging growth Company

 If an emerging growth company, indicate by check mark if the registrant
has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section 13(a) of the Exchange Act.

 Indicate by check mark whether the registrant has filed a report on
and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section
404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.

 If securities are registered pursuant to Section 12(b) of the Act,
indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to
previously issued financial statements.

 Indicate by check mark whether any of those error corrections are
restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive o cers
during the relevant recovery period pursuant to §240.10D-1(b).

 Indicate by check mark whether the registrant is a shell company (as
defined in Rule 12b-2 of the Act).

 Yes No

 State the aggregate market value of the voting and non-voting common
equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked
price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter:

 The registrant has no voting stock or class of common stock that is
held by non-affiliates.

 DOCUMENTS INCORPORATED BY REFERENCE

 The following documents are incorporated by reference into Part IV
of this Annual Report: the distribution reports to security holders filed on Form 8-K during the fiscal year, in lieu of reports on Form
10-Q, which include the reports filed on Form 8-K listed in Item 15(a) hereto.

 Introductory Note

 Synthetic Fixed-Income Securities, Inc. (the "Depositor")
is the Depositor in respect of the STRATS Trust For United States Cellular Corporation Securities, Series 2004-6 (the "Trust"),
a common law trust formed pursuant to the Base Trust Agreement, dated as of September 26, 2003, between the Depositor and U.S. Bank Trust
National Association, as trustee (the "Trustee"), as supplemented by the STRATS Certificates Series Supplement 2004-6 (the
"Series Supplement") dated as of April 21, 2004 in respect of the Trust. The Trust's assets consist solely of notes
issued by United States Cellular Corporation. The Certificates do not represent obligations of or interests in the Depositor or the Trustee.

 Pursuant to staff administrative positions established in Corporate
Asset Backed Corporation (available August 9, 1995), the Trust is not required to respond to various items of Form 10-K. Such items
are designated herein as "Not Applicable." Distribution reports detailing receipts and distributions by the Trust are filed
after each distribution date on Form 8-K in lieu of reports on Form 10-Q.

 United States Cellular Corporation, the issuer of the underlying securities,
is subject to the information reporting requirements of the Securities Exchange Act of 1934, as amended, (the "Exchange Act").
For information on United States Cellular Corporation please see its periodic and current reports filed with the Securities and Exchange
Commission (the "Commission") under its Exchange Act file number, 001-09712. The Commission maintains a site on the World
Wide Web at " at which users can view and download copies of reports, proxy and information statements
and other information filed electronically through the Electronic Data Gathering, Analysis and Retrieval system, or "EDGAR."
Periodic and current reports and other information required to be filed pursuant to the Exchange Act, by United States Cellular Corporation
may be accessed on this site. Neither Synthetic Fixed-Income Securities, Inc. nor the Trustee has participated in the preparation of such
reporting documents, or made any due diligence investigation with respect to the information provided therein. Neither Synthetic Fixed-Income
Securities, Inc. nor the Trustee has verified the accuracy or completeness of such documents or reports. There can be no assurance that
events affecting the issuer of the underlying securities, or the underlying securities themselves, have not occurred or have not yet been
publicly disclosed which would affect the accuracy or completeness of the publicly available documents described above.

 Item 1. Business.

 Item 1A. Risk Factors.

 Item 1B. Unresolved Staff Comments.

 Item 1C. Cybersecurity.

 Item 2. Properties.

 Item 3. Legal Proceedings.

 None

 Item 4. Mine Safety Disclosures.

 Item 5. Market for Registrant's Common Equity, Related Stockholder
Matters and Issuer Purchases of Equity Securities.

 The Class A-1 Certificates representing investors'
interest in the Trust are represented by one or more physical Certificates registered in the name of "Cede & Co.", the
nominee of The Depository Trust Company. The Class A-1 Certificates are listed on the NYSE.

 Item 6. [Reserved]

 Item 7. Management's Discussion and Analysis of Financial
Condition and Results of Operations.

 Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

 Item 8. Financial Statements and Supplementary Data.

 Item 9. Changes in and Disagreements With Accountants on Accounting
and Financial Disclosure.

 None

 Item 9A. Controls and Procedures.

 Item 9B. Other Information.

 None

 Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent
Inspections.

 Item 10. Directors, Executive Officers and Corporate Governance.

 Item 11. Executive Compensation.

 Item 12. Security Ownership of Certain Beneficial Owners and Management
and Related Stockholder Matters.

 Item 13. Certain Relationships and Related Transactions, and Director
Independence.

 None

 Item 14. Principal Accounting Fees and Services.

 Item 15. Exhibit and Financial Statement Schedules.

 (a) List
the following documents filed as a part of the report:

 1.
 Trustee's Distribution Statements documented on Form 8-K of STRATS Trust For United States Cellular Corporation Securities,
Series 2004-6 to the certificateholders for the period from January 1, 2023 through and including December 31, 2023 have been filed with
the Securities and Exchange Commission and are hereby incorporated by reference. Filing dates are listed below:

 Trust Description

 Distribution Date

 Filed on

 STRATS Trust For United States Cellular Corporation Securities, Series 2004-6

 06-15-2023

12-15-2023

 06-27-2023

12-27-2023

 2.
 None

 3.
 Exhibits:

 31.1 – Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.1 – Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.2 – Report of Aston Bell, CPA.

 99.3 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 (b) See
Item 15(a) above.

 (c) Not
Applicable.

 Item 16. Form 10-K Summary.

 SIGNATURE

 Pursuant to the requirements of Section 13 or 15(d)
of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto
duly authorized.

 Synthetic Fixed-Income Securities, Inc.,

 as Depositor for the Trust

 By:

 /s/ Barbara Garafalo

 Name:

 Barbara Garafalo

 Title:

 President

 Dated: March 29, 2024

 EXHIBIT INDEX

 Reference Number per Item 601 of Regulation SK

 Description of Exhibits

 Exhibit Number in this Form 10-K

 (31.1)

 Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 31.1

 (99.1)

 Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.1

 (99.2)

 Report of Aston Bell, CPA.

 99.2

 (99.3)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.3

 (99.4)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4


ANNUAL REPORT

 UNITED
STATES

SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549

 FORM 10-K

 (Mark One)

 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934

 For the fiscal year ended December 31, 2023

 or

 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

 For the transition period from ________ to ________

 Commission File Numbers: 333-111858-13, 001-32527

Central Index Key Number: 0001328989

 Synthetic Fixed-Income Securities, Inc.

 on behalf of:

 STRATS Trust For
Goldman Sachs Capital I Securities,

Series 2005-1

 (Exact name of registrant as specified in
its charter)

 Delaware

 52-2316339

 (State or other jurisdiction of incorporation

or organization)

 (I.R.S. Employer Identification No.)

 30 Hudson Yards, 14 th Floor, New York, New York

 10001-2170

 (Address of principal executive offices)

 (Zip Code)

 Registrant's telephone number, including area code: (212) 214-6289

 Securities registered pursuant to Section 12(b) of the Act:

 Title of Each Class

 Trading Symbol(s)

 Name of Each Exchange on which Registered

 STRATS Certificates, Series 2005-1

 N/A

 New York Stock Exchange ("NYSE")

 Securities registered pursuant to Section 12(g) of the Act: None

 Indicate by check mark if the registrant is a well-known seasoned issuer,
as defined in Rule 405 of the Securities Act.

 Yes No

 Indicate by check mark if the registrant is not required to file reports
pursuant to Section 13 or Section 15(d) of the Act.

 Yes No

 Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter
period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

 Yes No

 Indicate by check mark whether the registrant has submitted electronically
every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the
preceding 12 months (or for such shorter period that the registrant was required to submit such files).

 Yes
No

 Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions
of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging
growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated filer

 Accelerated
filer

 Non-accelerated filer

 Smaller
Reporting Company

 Emerging growth Company

 If an emerging growth company, indicate by check mark if the registrant
has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section 13(a) of the Exchange Act.

 Indicate by check mark whether the registrant has filed a report on
and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section
404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.

 If securities are registered pursuant to Section 12(b) of the Act,
indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to
previously issued financial statements.

 Indicate by check mark whether any of those error corrections are restatements
that required a recovery analysis of incentive-based compensation received by any of the registrant's executive o cers during
the relevant recovery period pursuant to §240.10D-1(b).

 Indicate by check mark whether the registrant is a shell company (as
defined in Rule 12b-2 of the Act).

 Yes No

 State the aggregate market value of the voting and non-voting common
equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked
price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter:

 The registrant has no voting stock or class of common stock that is
held by non-affiliates.

 DOCUMENTS INCORPORATED BY REFERENCE

 The following documents are incorporated by reference into Part IV
of this Annual Report: The distribution reports to security holders filed on Form 8-K during the fiscal year, in lieu of reports
on Form 10-Q, which include the reports filed on Form 8-K listed in Item 15(a) hereto.

 Introductory Note

 Synthetic Fixed-Income Securities, Inc. (the "Depositor")
is the Depositor in respect of the STRATS Trust For Goldman Sachs Capital I Securities, Series 2005-1 (the "Trust"), a common
law trust formed pursuant to the Base Trust Agreement, dated as of September 26, 2003, between the Depositor and U.S. Bank Trust National
Association, as trustee (the "Trustee"), as supplemented by the STRATS Certificates Series Supplement 2005-1 (the "Series
Supplement") dated as of June 13, 2005 in respect of the Trust. The Trust's assets consist solely of notes issued by Goldman
Sachs Capital I. The Certificates do not represent obligations of or interests in the Depositor or the Trustee.

 Pursuant to staff administrative positions established in Corporate
Asset Backed Corporation (available August 9, 1995), the Trust is not required to respond to various items of Form 10-K. Such items
are designated herein as "Not Applicable." Distribution reports detailing receipts and distributions by the Trust are filed
after each distribution date on Form 8-K in lieu of reports on Form 10-Q.

 The Goldman Sachs Group, Inc. ("Goldman"), the issuer of
the junior subordinated debentures, the sole assets held by the issuer of the underlying securities, is subject to the information reporting
requirements of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). For information on Goldman please see
its periodic and current reports filed with the Securities and Exchange Commission (the "Commission") under its Exchange Act
file number, 001-14965. The Commission maintains a site on the World Wide Web at " at which users can view
and download copies of reports, proxy and information statements and other information filed electronically through the Electronic Data
Gathering, Analysis and Retrieval system, or "EDGAR." Periodic and current reports and other information required to be filed
pursuant to the Exchange Act by Goldman may be accessed on this site. Neither Synthetic Fixed-Income Securities, Inc. nor the Trustee
has participated in the preparation of such reporting documents, or made any due diligence investigation with respect to the information
provided therein. Neither Synthetic Fixed-Income Securities, Inc. nor the Trustee has verified the accuracy or completeness of such documents
or reports. There can be no assurance that events affecting the issuer of the underlying securities, the issuer of the junior subordinated
debentures, or the underlying securities themselves have not occurred or have not yet been publicly disclosed which would affect the accuracy
or completeness of the publicly available documents described above.

 Item 1. Business.

 Item 1A. Risk Factors.

 Item 1B. Unresolved Staff Comments.

 Item 1C. Cybersecurity.

 Item 2. Properties.

 Item 3. Legal Proceedings.

 None

 Item 4. Mine Safety Disclosures.

 Item 5. Market for Registrant's Common Equity, Related Stockholder
Matters and Issuer Purchases of Equity Securities.

 The publicly offered Certificates representing
investors' interest in the Trust are represented by one or more physical Certificates registered in the name of "Cede &
Co.", the nominee of The Depository Trust Company. Those publicly offered Certificates are listed on the NYSE.

 Item 6. [Reserved]

 Item 7. Management's Discussion and Analysis of Financial
Condition and Results of Operations.

 Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

 Item 8. Financial Statements and Supplementary Data.

 Item 9. Changes in and Disagreements With Accountants on Accounting
and Financial Disclosure.

 None

 Item 9A. Controls and Procedures.

 Item 9B. Other Information.

 None

 Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent
Inspections.

 Item 10. Directors, Executive Officers and Corporate Governance.

 Item 11. Executive Compensation.

 Item 12. Security Ownership of Certain Beneficial Owners and Management
and Related Stockholder Matters.

 Item 13. Certain Relationships and Related Transactions, and Director
Independence.

 None

 Item 14. Principal Accounting Fees and Services.

 Item 15. Exhibit and Financial Statement Schedules.

 (a) List
the following documents filed as a part of the report:

 1.
 Trustee's Distribution Statements documented on Form 8-K of STRATS Trust For Goldman Sachs Capital I Securities, Series
2005-1 to the certificateholders for the period from January 1, 2023 through and including December 31, 2023 have been filed with the
Securities and Exchange Commission and are hereby incorporated by reference. Filing dates are listed below:

 Trust Description

 Distribution Date

 Filed on

 STRATS Trust For Goldman Sachs Capital I Securities, Series 2005-1

 01-17-2023

02-15-2023

03-15-2023

04-17-2023

05-15-2023

06-15-2023

07-17-2023

08-15-2023

09-15-2023

10-16-2023

11-15-2023

12-15-2023

 01-23-2023

02-27-2023

03-22-2023

04-20-2023

05-24-2023

06-27-2023

07-27-2023

08-24-2023

09-20-2023

10-24-2023

11-17-2023

12-27-2023

 2.
 None

 3.
 Exhibits:

 31.1 – Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.1 – Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.2 – Report of Aston Bell, CPA.

 99.3 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on January 23, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.5 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on March 22, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.6 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on April 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.7 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on May 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.8 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.9 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.10 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.11 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on September 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.12 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on October 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.13 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on November 17, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.14 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 (b)
 See Item 15(a) above.

 (c) Not
Applicable.

 Item 16. Form 10-K Summary.

 SIGNATURE

 Pursuant to the requirements of Section 13 or 15(d)
of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto
duly authorized.

 Synthetic Fixed-Income Securities, Inc.,

 as Depositor for the Trust

 By:

 /s/ Barbara Garafalo

 Name:

 Barbara Garafalo

 Title:

 President

 Dated: March 29, 2024

 EXHIBIT INDEX

 Reference Number per Item 601 of Regulation SK

 Description of Exhibits

 Exhibit Number in this Form 10-K

 (31.1)

 Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 31.1

 (99.1)

 Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.1

 (99.2)

 Report of Aston Bell, CPA.

 99.2

 (99.3)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on January 23, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.3

 (99.4)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4

 (99.5)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on March 22, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.5

 (99.6)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on April 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.6

 (99.7)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on May 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.7

 (99.8)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.8

 (99.9)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.9

 (99.10)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.10

 (99.11)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on September 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.11

 (99.12)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on October 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.12

 (99.13)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on November 17, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.13

 (99.14)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.14


ANNUAL REPORT

 UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549

 FORM 10-K

 (Mark One)

 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934

 For the fiscal year ended December 31, 2023

 or

 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

 For the transition period from ________ to ________

 Commission File Numbers: 333-111858-15, 001-32633

Central Index Key Number: 0001339920

 Synthetic Fixed-Income Securities, Inc.

 on behalf of:

 STRATS Trust For
Goldman Sachs Capital I Securities,

Series 2005-3

 (Exact name of registrant as specified in its charter)

 Delaware

 52-2316339

 (State or other jurisdiction of incorporation

or organization)

 (I.R.S. Employer Identification No.)

 30 Hudson Yards, 14 th Floor, New York, New York

 10001-2170

 (Address of principal executive offices)

 (Zip Code)

 Registrant's telephone number, including area code: (212) 214-6289

 Securities registered pursuant to Section 12(b) of the Act:

 Title of Each Class

 Trading Symbol(s)

 Name of Each Exchange on which Registered

 STRATS Certificates, Series 2005-3

 N/A

 New York Stock Exchange ("NYSE")

 Securities registered pursuant to Section 12(g) of the Act: None

 Indicate by check mark if the registrant is a well-known seasoned issuer,
as defined in Rule 405 of the Securities Act.

 Yes No

 Indicate by check mark if the registrant is not required to file reports
pursuant to Section 13 or Section 15(d) of the Act.

 Yes No

 Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter
period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

 Yes No

 Indicate by check mark whether the registrant has submitted electronically
every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the
preceding 12 months (or for such shorter period that the registrant was required to submit such files).

 Yes
No

 Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions
of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging
growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated filer

 Accelerated
filer

 Non-accelerated filer

 Smaller
Reporting Company

 Emerging growth Company

 If an emerging growth company, indicate by check mark if the registrant
has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section 13(a) of the Exchange Act.

 Indicate by check mark whether the registrant has filed a report on
and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section
404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.

 If securities are registered pursuant to Section 12(b) of the Act,
indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to
previously issued financial statements.

 Indicate by check mark whether any of those error corrections are restatements
that required a recovery analysis of incentive-based compensation received by any of the registrant's executive o cers during
the relevant recovery period pursuant to §240.10D-1(b).

 Indicate by check mark whether the registrant is a shell company (as
defined in Rule 12b-2 of the Act).

 Yes No

 State the aggregate market value of the voting and non-voting common
equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked
price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter:

 The registrant has no voting stock or class of common stock that is
held by non-affiliates.

 DOCUMENTS INCORPORATED BY REFERENCE

 The following documents are incorporated by reference into Part IV
of this Annual Report: The distribution reports to security holders filed on Form 8-K during the fiscal year, in lieu of reports
on Form 10-Q, which include the reports filed on Form 8-K listed in Item 15(a) hereto.

 Introductory Note

 Synthetic Fixed-Income Securities, Inc. (the "Depositor")
is the Depositor in respect of the STRATS Trust For Goldman Sachs Capital I Securities, Series 2005-3 (the "Trust"), a common
law trust formed pursuant to the Base Trust Agreement, dated as of September 26, 2003, between the Depositor and U.S. Bank Trust National
Association, as trustee (the "Trustee"), as supplemented by the STRATS Certificates Series Supplement 2005-3 (the "Series
Supplement") dated as of September 30, 2005 in respect of the Trust. The Trust's assets consist solely of notes issued by
Goldman Sachs Capital I. The Certificates do not represent obligations of or interests in the Depositor or the Trustee.

 Pursuant to staff administrative positions established in Corporate
Asset Backed Corporation (available August 9, 1995), the Trust is not required to respond to various items of Form 10-K. Such items
are designated herein as "Not Applicable." Distribution reports detailing receipts and distributions by the Trust are filed
after each distribution date on Form 8-K in lieu of reports on Form 10-Q.

 The Goldman Sachs Group, Inc. ("Goldman"), the issuer of
the junior subordinated debentures, the sole assets held by the issuer of the underlying securities, is subject to the information reporting
requirements of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). For information on Goldman please see
its periodic and current reports filed with the Securities and Exchange Commission (the "Commission") under its Exchange Act
file number, 001-14965. The Commission maintains a site on the World Wide Web at " at which users can view
and download copies of reports, proxy and information statements and other information filed electronically through the Electronic Data
Gathering, Analysis and Retrieval system, or "EDGAR." Periodic and current reports and other information required to be filed
pursuant to the Exchange Act by Goldman may be accessed on this site. Neither Synthetic Fixed-Income Securities, Inc. nor the Trustee
has participated in the preparation of such reporting documents, or made any due diligence investigation with respect to the information
provided therein. Neither Synthetic Fixed-Income Securities, Inc. nor the Trustee has verified the accuracy or completeness of such documents
or reports. There can be no assurance that events affecting the issuer of the underlying securities, the issuer of the junior subordinated
debentures, or the underlying securities themselves have not occurred or have not yet been publicly disclosed which would affect the accuracy
or completeness of the publicly available documents described above.

 Item 1. Business.

 Item 1A. Risk Factors.

 Item 1B. Unresolved Staff Comments.

 Item 1C. Cybersecurity.

 Item 2. Properties.

 Item 3. Legal Proceedings.

 None

 Item 4. Mine Safety Disclosures.

 Item 5. Market for Registrant's Common Equity, Related Stockholder
Matters and Issuer Purchases of Equity Securities.

 The Certificates representing investors'
interest in the Trust are represented by one or more physical Certificates registered in the name of "Cede & Co.", the
nominee of The Depository Trust Company. The Certificates are listed on the NYSE.

 Item 6. [Reserved]

 Item 7. Management's Discussion and Analysis of Financial
Condition and Results of Operations.

 Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

 Item 8. Financial Statements and Supplementary Data.

 Item 9. Changes in and Disagreements With Accountants on Accounting
and Financial Disclosure.

 None

 Item 9A. Controls and Procedures.

 Item 9B. Other Information.

 None

 Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent
Inspections.

 Item 10. Directors, Executive Officers and Corporate Governance.

 Item 11. Executive Compensation.

 Item 12. Security Ownership of Certain Beneficial Owners and Management
and Related Stockholder Matters.

 Item 13. Certain Relationships and Related Transactions, and Director
Independence.

 None

 Item 14. Principal Accounting Fees and Services.

 Item 15. Exhibit and Financial Statement Schedules.

 (a) List
the following documents filed as a part of the report:

 1.
 Trustee's Distribution Statements documented on Form 8-K of STRATS Trust For Goldman Sachs Capital I Securities, Series
2005-3 to the certificateholders for the period from January 1, 2023 through and including December 31, 2023 have been filed with the
Securities and Exchange Commission and are hereby incorporated by reference. Filing dates are listed below:

 Trust Description

 Distribution Date

 Filed on

 STRATS Trust For Goldman Sachs Capital I Securities, Series 2005-3

 01-17-2023

02-15-2023

03-15-2023

04-17-2023

05-15-2023

06-15-2023

07-17-2023

08-15-2023

09-15-2023

10-16-2023

11-15-2023

12-15-2023

 01-23-2023

02-27-2023

03-22-2023

04-20-2023

05-24-2023

06-27-2023

07-27-2023

08-24-2023

09-20-2023

10-24-2023

11-17-2023

12-27-2023

 2.
 None

 3.
 Exhibits:

 31.1 – Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.1 – Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.2 – Report of Aston Bell, CPA.

 99.3 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on January 23, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.5 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on March 22, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.6 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on April 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.7 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on May 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.8 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.9 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.10 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.11 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on September 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.12 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on October 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.13 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on November 17, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.14 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 (b)
 See Item 15(a) above.

 (c) Not
Applicable.

 Item 16. Form 10-K Summary.

 SIGNATURE

 Pursuant to the requirements of Section 13 or 15
(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto
duly authorized.

 Synthetic Fixed-Income Securities, Inc.,

 as Depositor for the Trust

 By:

 /s/ Barbara Garafalo

 Name:

 Barbara Garafalo

 Title:

 President

 Dated: March 29, 2024

 EXHIBIT INDEX

 Reference Number per Item 601 of Regulation SK

 Description of Exhibits

 Exhibit Number in this Form 10-K

 (31.1)

 Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 31.1

 (99.1)

 Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.1

 (99.2)

 Report of Aston Bell, CPA.

 99.2

 (99.3)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on January 23, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.3

 (99.4)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4

 (99.5)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on March 22, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.5

 (99.6)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on April 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.6

 (99.7)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on May 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.7

 (99.8)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.8

 (99.9)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.9

 (99.10)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.10

 (99.11)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on September 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.11

 (99.12)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on October 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.12

 (99.13)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on November 17, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.13

 (99.14)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.14


ANNUAL REPORT

 UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549

 FORM 10-K

 (Mark One)

 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934

 For the fiscal year ended December 31, 2023

 or

 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

 For the transition period from ________ to ________

 Commission File Numbers: 333-111858-16, 001-32648

Central Index Key Number: 0001340909

 Synthetic Fixed-Income Securities, Inc.

 on behalf of:

 STRATS Trust For
Wal-Mart Stores, Inc. Securities,

Series 2005-4

 (Exact name of registrant as specified in its charter)

 Delaware

 52-2316339

 (State or other jurisdiction of incorporation

or organization)

 (I.R.S. Employer Identification No.)

 30 Hudson Yards, 14 th Floor, New York, New York

 10001-2170

 (Address of principal executive offices)

 (Zip Code)

 Registrant's telephone number, including area code: (212)
214-6289

 Securities registered pursuant to Section 12(b) of the Act:

 Title of Each Class

 Trading Symbol(s)

 Name of Each Exchange on which Registered

 STRATS Certificates, Series 2005-4

 GJO

 New York Stock Exchange ("NYSE")

 Securities registered pursuant to Section 12(g) of the Act: None

 Indicate by check mark if the registrant is a well-known seasoned issuer,
as defined in Rule 405 of the Securities Act.

 Yes No

 Indicate by check mark if the registrant is not required to file reports
pursuant to Section 13 or Section 15(d) of the Act.

 Yes No

 Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter
period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

 Yes No

 Indicate by check mark whether the registrant has submitted electronically
every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the
preceding 12 months (or for such shorter period that the registrant was required to submit such files).

 Yes
No

 Indicate by check mark whether the registrant is a large accelerated
filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions
of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging
growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated filer

 Accelerated
filer

 Non-accelerated filer

 Smaller
Reporting Company

 Emerging growth Company

 If an emerging growth company, indicate by check mark if the registrant
has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section 13(a) of the Exchange Act.

 Indicate by check mark whether the registrant has filed a report on
and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section
404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.

 If securities are registered pursuant to Section 12(b) of the Act,
indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to
previously issued financial statements.

 Indicate by check mark whether any of those error corrections are restatements
that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during
the relevant recovery period pursuant to §240.10D-1(b).

 Indicate by check mark whether the registrant is a shell company (as
defined in Rule 12b-2 of the Act).

 Yes No

 State the aggregate market value of the voting and non-voting common
equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked
price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter:

 The registrant has no voting stock or class of common stock that is
held by non-affiliates.

 DOCUMENTS INCORPORATED BY REFERENCE

 The following documents are incorporated by reference into Part IV
of this Annual Report: The distribution reports to security holders filed on Form 8-K during the fiscal year, in lieu of reports
on Form 10-Q, which include the reports filed on Form 8-K listed in Item 15(a) hereto.

 Introductory Note

 Synthetic Fixed-Income Securities, Inc. (the "Depositor")
is the Depositor in respect of the STRATS Trust For Wal-Mart Stores, Inc. Securities, Series 2005-4 (the "Trust"), a common
law trust formed pursuant to the Base Trust Agreement, dated as of September 26, 2003, between the Depositor and U.S. Bank Trust National
Association, as trustee (the "Trustee"), as supplemented by the STRATS Certificates Series Supplement 2005-4 (the "Series
Supplement") dated as of October 17, 2005 in respect of the Trust. The Trust's assets consist solely of notes issued by Wal-Mart
Stores, Inc. The Certificates do not represent obligations of or interests in the Depositor or the Trustee.

 Pursuant to staff administrative positions established in Corporate
Asset Backed Corporation (available August 9, 1995), the Trust is not required to respond to various items of Form 10-K. Such items
are designated herein as "Not Applicable." Distribution reports detailing receipts and distributions by the Trust are filed
after each distribution date on Form 8-K in lieu of reports on Form 10-Q.

 Wal-Mart Stores, Inc., the issuer of the underlying securities, is
subject to the information reporting requirements of the Securities Exchange Act of 1934, as amended (the "Exchange Act").
For information on Wal-Mart Stores, Inc. please see its periodic and current reports filed with the Securities and Exchange Commission
(the "Commission") under its Exchange Act file number, 001-06991. The Commission maintains a site on the World Wide Web at
" at which users can view and download copies of reports, proxy and information statements and other information
filed electronically through the Electronic Data Gathering, Analysis and Retrieval system, or "EDGAR." Periodic and current
reports and other information required to be filed pursuant to the Exchange Act by Wal-Mart Stores, Inc. may be accessed on this site.
Neither Synthetic Fixed-Income Securities, Inc. nor the Trustee has participated in the preparation of such reporting documents, or made
any due diligence investigation with respect to the information provided therein. Neither Synthetic Fixed-Income Securities, Inc. nor
the Trustee has verified the accuracy or completeness of such documents or reports. There can be no assurance that events affecting the
issuer of the underlying securities or the underlying securities themselves have not occurred or have not yet been publicly disclosed
which would affect the accuracy or completeness of the publicly available documents described above.

 Item 1. Business.

 Item 1A. Risk Factors.

 Item 1B. Unresolved Staff Comments.

 Item 1C. Cybersecurity.

 Item 2. Properties.

 Item 3. Legal Proceedings.

 None

 Item 4. Mine Safety Disclosures.

 Item 5. Market for Registrant's Common Equity, Related Stockholder
Matters and Issuer Purchases of Equity Securities.

 The Certificates representing investors'
interest in the Trust are represented by one or more physical Certificates registered in the name of "Cede & Co.", the
nominee of The Depository Trust Company. The Certificates are listed on the NYSE.

 Item 6. [Reserved]

 Item 7. Management's Discussion and Analysis of Financial
Condition and Results of Operations.

 Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

 Item 8. Financial Statements and Supplementary Data.

 Item 9. Changes in and Disagreements With Accountants on Accounting
and Financial Disclosure.

 None

 Item 9A. Controls and Procedures.

 Item 9B. Other Information.

 None

 Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent
Inspections.

 Item 10. Directors, Executive Officers and Corporate Governance.

 Item 11. Executive Compensation.

 Item 12. Security Ownership of Certain Beneficial Owners and Management
and Related Stockholder Matters.

 Item 13. Certain Relationships and Related Transactions, and Director
Independence.

 None

 Item 14. Principal Accounting Fees and Services.

 Item 15. Exhibit and Financial Statement Schedules.

 (a) List
the following documents filed as a part of the report:

 1.
 Trustee's Distribution Statements documented on Form 8-K of STRATS Trust For Wal-Mart Stores, Inc. Securities, Series 2005-4
to the certificateholders for the period from January 1, 2023 through and including December 31, 2023 have been filed with the Securities
and Exchange Commission and are hereby incorporated by reference. Filing dates are listed below:

 Trust Description

 Distribution Date

 Filed on

 STRATS Trust For Wal-Mart Stores, Inc. Securities, Series 2005-4

 01-17-2023

02-15-2023

03-15-2023

04-17-2023

05-15-2023

06-15-2023

07-17-2023

08-15-2023

09-15-2023

10-16-2023

11-15-2023

12-15-2023

 01-23-2023

02-27-2023

03-22-2023

04-20-2023

05-24-2023

06-27-2023

07-27-2023

08-24-2023

09-20-2023

10-24-2023

11-17-2023

12-27-2023

 2.
 None

 3.
 Exhibits:

 31.1 – Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.1 – Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.2 – Report of Aston Bell, CPA.

 99.3 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on January 23, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.5 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on March 22, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.6 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on April 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.7 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on May 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.8 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.9 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.10 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.11 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on September 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.12 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on October 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.13 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on November 17, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.14 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 (b) See
Item 15(a) above.

 (c) Not
Applicable.

 Item 16. Form 10-K Summary.

 SIGNATURE

 Pursuant to the requirements of Section 13 or 15
(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto
duly authorized.

 Synthetic Fixed-Income Securities, Inc.,

 as Depositor for the Trust

 By:

 /s/ Barbara Garafalo

 Name:

 Barbara Garafalo

 Title:

 President

 Dated: March 29, 2024

 EXHIBIT INDEX

 Reference Number per Item 601 of Regulation SK

 Description of Exhibits

 Exhibit Number in this Form 10-K

 (31.1)

 Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 31.1

 (99.1)

 Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.1

 (99.2)

 Report of Aston Bell, CPA.

 99.2

 (99.3)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on January 23, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.3

 (99.4)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4

 (99.5)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on March 22, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.5

 (99.6)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on April 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.6

 (99.7)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on May 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.7

 (99.8)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.8

 (99.9)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.9

 (99.10)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.10

 (99.11)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on September 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.11

 (99.12)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on October 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.12

 (99.13)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on November 17, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.13

 (99.14)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.14


ANNUAL REPORT

 UNITED
STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 FORM 10-K

 (Mark
One)

 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For
the fiscal year ended December 31, 2023

 or

 TRANSITION
REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For
the transition period from ________ to ________

 Commission
File Numbers: 333-111858-18, 001-32680

Central Index Key Number: 0001343491

 Synthetic
Fixed-Income Securities, Inc.

 on
behalf of:

 STRATS
Trust For Dominion Resources, Inc. Securities,

Series 2005-6

 (Exact name of registrant as specified in its charter)

 Delaware

 52-2316339

 (State
 or other jurisdiction of incorporation

 or organization)

 (I.R.S.
 Employer Identification No.)

 Hudson Yards, Floor 14, New York, New York

 10001-2170

 (Address
 of principal executive offices)

 (Zip
 Code)

 Registrant's
telephone number, including area code: (212) 214-6289

 Securities
registered pursuant to Section 12(b) of the Act:

 Title
 of Each Class

 Trading
 Symbol(s)

 Name
 of Each Exchange on which Registered

 STRATS
 Certificates, Series 2005-6

 GJP

 New
 York Stock Exchange ("NYSE")

 Securities
registered pursuant to Section 12(g) of the Act: None

by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports),
and (2) has been subject to such filing requirements for the past 90 days.

by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant
to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that
the registrant was required to submit such files).

by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting
company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer,"
"smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated filer

 Accelerated filer

 Non-accelerated filer

 Smaller Reporting Company

 Emerging growth Company

 If
an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for
complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness
of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered
public accounting firm that prepared or issued its audit report.

 If
securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the
registrant included in the filing reflect the correction of an error to previously issued financial statements.

by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation
received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b).

by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).

 State
the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price
at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day
of the registrant's most recently completed second fiscal quarter:

 The
registrant has no voting stock or class of common stock that is held by non-affiliates.

 DOCUMENTS
INCORPORATED BY REFERENCE

 The
following documents are incorporated by reference into Part IV of this Annual Report: The distribution reports to security
holders filed on Form 8-K during the fiscal year, in lieu of reports on Form 10-Q, which include the reports filed on
Form 8-K listed in Item 15(a) hereto.

 Introductory
Note

 Synthetic
Fixed-Income Securities, Inc. (the "Depositor") is the Depositor in respect of the STRATS Trust For Dominion Resources,
Inc. Securities, Series 2005-6 (the "Trust"), a common law trust formed pursuant to the Base Trust Agreement, dated
as of September 26, 2003, between the Depositor and U.S. Bank Trust National Association, as trustee (the "Trustee"),
as supplemented by the STRATS Certificates Series Supplement 2005-6 (the "Series Supplement") dated as of November
21, 2005 in respect of the Trust. The Trust's assets consist solely of notes issued by Dominion Resources, Inc. The Certificates
do not represent obligations of or interests in the Depositor or the Trustee.

 Pursuant
to staff administrative positions established in Corporate Asset Backed Corporation (available August 9, 1995), the Trust is not
required to respond to various items of Form 10-K. Such items are designated herein as "Not Applicable." Distribution
reports detailing receipts and distributions by the Trust are filed after each distribution date on Form 8-K in lieu of reports
on Form 10-Q.

 Dominion
Resources, Inc., the issuer of the underlying securities, is subject to the information reporting requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"). For information on Dominion Resources, Inc. please see its
periodic and current reports filed with the Securities and Exchange Commission (the "Commission") under its Exchange
Act file number, 001-08489. The Commission maintains a site on the World Wide Web at " at which
users can view and download copies of reports, proxy and information statements and other information filed electronically through
the Electronic Data Gathering, Analysis and Retrieval system, or "EDGAR." Periodic and current reports and other information
required to be filed pursuant to the Exchange Act, by Dominion Resources, Inc. may be accessed on this site. Neither Synthetic
Fixed-Income Securities, Inc. nor the Trustee has participated in the preparation of such reporting documents, or made any due
diligence investigation with respect to the information provided therein. Neither Synthetic Fixed-Income Securities, Inc. nor
the Trustee has verified the accuracy or completeness of such documents or reports. There can be no assurance that events affecting
the issuer of the underlying securities or the underlying securities themselves have not occurred or have not yet been publicly
disclosed which would affect the accuracy or completeness of the publicly available documents described above.

 PART
I

 Item
1. Business.

 Not

 Item
1A. Risk Factors.

 Not

 Item
1B. Unresolved Staff Comments.

 Not

 Item
1C. Cybersecurity.

 Not

 Item
2. Properties.

 Not

 Item
3. Legal Proceedings.

 None

 Item
4. Mine Safety Disclosures.

 Not

 PART
II

 Item
5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

 The
Certificates representing investors' interest in the Trust are represented by one or more physical Certificates registered
in the name of "Cede & Co.", the nominee of The Depository Trust Company. The Certificates are listed on the NYSE.

 Item
6. [Reserved]

 Item
7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

 Not

 Item
7A. Quantitative and Qualitative Disclosures About Market Risk.

 Not

 Item
8. Financial Statements and Supplementary Data.

 Not

 Item
9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.

 None

 Item
9A. Controls and Procedures.

 Not

 Item
9B. Other Information.

 None

 Item
9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

 Not

 PART
III

 Item
10. Directors, Executive Officers and Corporate Governance.

 Not

 Item
11. Executive Compensation.

 Not

 Item
12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

 Not

 Item
13. Certain Relationships and Related Transactions, and Director Independence.

 None

 Item
14. Principal Accounting Fees and Services.

 Not

 PART
IV

 Item
15. Exhibit and Financial Statement Schedules.

 (a) List
the following documents filed as a part of the report:

 1.
 Trustee's
 Distribution Statements documented on Form 8-K of STRATS Trust For Dominion Resources,
 Inc. Securities, Series 2005-6 to the certificateholders for the period from January
 1, 2023 through and including December 31, 2023 have been filed with the Securities and
 Exchange Commission and are hereby incorporated by reference. Filing dates are listed
 below:

 Trust
 Description

 Distribution
 Date

 Filed
 on

 STRATS
 Trust For Dominion Resources, Inc. Securities, Series 2005-6

 01-17-2023

 02-15-2023

 03-15-2023

 04-17-2023

 05-15-2023

 06-15-2023

 07-17-2023

 08-15-2023

 09-15-2023

 10-16-2023

 11-15-2023

 12-15-2023

 01-23-2023

 02-27-2023

 03-22-2023

 04-20-2023

 05-24-2023

 06-27-2023

 07-27-2023

 08-24-2023

 09-20-2023

 10-24-2023

 11-17-2023

 12-27-2023

 2.
 None

 3.
 Exhibits:

 31-1 – Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99-1 – Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.2 – Report of Aston Bell, CPA.

 99.3 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on January 23, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.5 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on March 22, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.6 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on April 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.7 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on May 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.8 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.9 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.10 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.11 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on September 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.12 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on October 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.13 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on November 17, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.14 – Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 (b) See
Item 15(a) above.

 (c) Not
Applicable.

 Item
16. Form 10-K Summary.

 Not

 SIGNATURE

 Pursuant
to the requirements of Section 13 or 15 (d) of the Securities Exchange Act of 1934, the registrant has duly caused this report
to be signed on its behalf by the undersigned thereunto duly authorized.

 Synthetic Fixed-Income Securities, Inc.,

 as Depositor for the Trust

 By:

 /s/ Barbara Garafalo

 Name:

 Barbara Garafalo

 Title:

 President

 Dated:
March 29, 2024

 EXHIBIT

 Reference
 Number per Item 601 of Regulation SK

 Description
 of Exhibits

 Exhibit
 Number in this Form 10-K

 (31.1)

 Certification by Director of the Registrant pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 31.1

 (99.1)

 Annual Compliance Report by Trustee pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

 99.1

 (99.2)

 Report of Aston Bell, CPA.

 99.2

 (99.3)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on January 23, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.3

 (99.4)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.4

 (99.5)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on March 22, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.5

 (99.6)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on April 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.6

 (99.7)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on May 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.7

 (99.8)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.8

 (99.9)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.9

 (99.10)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.10

 (99.11)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on September 20, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.11

 (99.12)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on October 24, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.12

 (99.13)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on November 17, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.13

 (99.14)

 Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on December 27, 2023, as further described in Item 15(a)(1) above, is incorporated herein by reference.

 99.14


ANNUAL REPORT

 UNITED
STATES

SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549

 FORM

 ANNUAL
 REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023

 OR

 TRANSITION
 REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 FOR THE TRANSITION PERIOD FROM TO

 Commission
File Number of issuing entity: 001-32822
 Central Index Key Number of issuing entity: 0001353226

 STRATS TRUST FOR PROCTER & GAMBLE SECURITIES,
SERIES 2006-1
 (Exact name of issuing entity as specified in its
charter)

 Commission
File Number of depositor and sponsor: 001-31818

Central Index Key Number of depositor and sponsor: 0001140396

 SYNTHETIC FIXED-INCOME SECURITIES, INC.

 (Exact name of depositor and sponsor as specified in its charter)

 New
 York

 26-6115306

 (State
 of incorporation or organization of the issuing entity)

 (IRS Employer Identification No.)

 Hudson Yards, 14 th Floor

 New York, New York

 10001-2170

 (212)
 214-6289

 (Address of principal executive offices)

 (Zip Code)

 (Telephone Number)

 SECURITIES
REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

 Title
 of Each Class

 Trading
 Symbol(s)

 Name
 of Each Exchange on which Registered

 STRATS
 Certificates, Series 2006-1

 GJR

 New
 York Stock Exchange ("NYSE")

 SECURITIES
REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: NONE

by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports),
and (2) has been subject to such filing requirements for the past 90 days.

by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant
to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that
the registrant was required to submit such files).

by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting
company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer,"
"smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated filer

 Accelerated filer

 Non-accelerated filer

 Smaller Reporting Company

 Emerging growth Company

 If
an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for
complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness
of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered
public accounting firm that prepared or issued its audit report.

 If
securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the
registrant included in the filing reflect the correction of an error to previously issued financial statements.

by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation
received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b).

by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).

 State
the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price
at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day
of the registrant's most recently completed second fiscal quarter.

 Not
applicable.

 DOCUMENTS
INCORPORATED BY REFERENCE

 List
hereunder the following documents if incorporated by reference and the part of the Form 10-K (e.g., Part I, Part II, etc.) into
which the document is incorporated: (1) Any annual report to security holders; (2) Any proxy information statement; and, (3) Any
prospectus filed pursuant to Rule 424(b) or (c) under the Securities Act of 1933. The listed documents should be clearly described
for identification purposes (e.g., annual report to security holders for fiscal year ended December 24, 1980).

 None.

 PART
I

 The
following Items have been omitted in accordance with General Instruction J to Form 10-K:

 Item
1. Business.

 Item
1A. Risk Factors.

 Item
1C. Cybersecurity.

 Item
2. Properties.

 Item
3. Legal Proceedings.

 Item
1B. Unresolved Staff Comments.

 Not

 Item
4. Mine Safety Disclosures.

 Not

 PART
II

 The
following Items have been omitted in accordance with General Instruction J to Form 10-K:

 Item
5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

 Item
6. [Reserved]

 Item
7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

 Item
7A. Quantitative and Qualitative Disclosures About Market Risk.

 Item
8. Financial Statements and Supplementary Data.

 Item
9. Changes in and Disagreement with Accountants on Accounting and Financial Disclosure.

 Item
9A. Controls and Procedures.

 Item
9B. Other Information.

 None.

 Item
9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

 Not

 PART
III

 The
following Items have been omitted in accordance with General Instruction J to Form 10-K:

 Item
10. Directors, Executive Officers and Corporate Governance.

 Item
11. Executive Compensation.

 Item
12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

 Item
13. Certain Relationships and Related Transactions, and Director Independence.

 Item
14. Principal Accountant Fees and Services.

 Substitute
information provided in accordance with General Instruction J to Form 10-K:

 Item
1112(b) of Regulation AB. Significant Obligors of Pool Assets (Financial Information).

 The
Procter & Gamble Company, the issuer of the underlying securities, is subject to the information reporting requirements of
the Securities Exchange Act of 1934 (the "Exchange Act"). For information on The Procter & Gamble Company please
see its periodic and current reports filed with the Securities and Exchange Commission (the "Commission") under its
Exchange Act file number, 001-00434. The Commission maintains a site on the World Wide Web at "
at which users can view and download copies of reports, proxy and information statements and other information filed electronically
through the Electronic Data Gathering, Analysis and Retrieval system, or "EDGAR." Periodic and current reports and
other information required to be filed pursuant to the Exchange Act by The Procter & Gamble Company may be accessed on this
site. Neither Synthetic Fixed-Income Securities, Inc. nor the Trustee has participated in the preparation of such reporting documents,
or made any due diligence investigation with respect to the information provided therein. Neither Synthetic Fixed-Income Securities,
Inc. nor the Trustee has verified the accuracy or completeness of such documents or reports. There can be no assurance that events
affecting the issuer of the underlying securities or the underlying securities themselves have not occurred or have not yet been
publicly disclosed which would affect the accuracy or completeness of the publicly available documents described above.

 Item
1114(b)(2) of Regulation AB. Credit Enhancement and Other Support, Except for Certain Derivatives Instruments (Financial Information).

 None.

 Item
1115(b) of Regulation AB. Certain Derivatives Instruments (Financial Information).

 None.

 Item
1117 of Regulation AB. Legal Proceedings.

 There
are no legal proceedings pending, or any proceedings known to be contemplated, by governmental authorities against the depositor,
the Trustee or the issuing entity, or any property thereof, that is material to the holders of the Certificates.

 Item
1119 of Regulation AB. Affiliations and Certain Relationships and Related Transactions.

 In
accordance with the Instruction to Item 1119, affiliations and certain relationships and related transactions are described below
in response to this item.

 Wells
Fargo Bank, National Association ("Wells Fargo Bank"), as successor to Wachovia Bank, National Association, is the
"Swap Counterparty" with respect to its obligations under the ISDA Master Agreement including the Schedule thereto
and a confirmation thereunder, by and among the Swap Counterparty and the issuing entity, dated as of February 28, 2006. Wells
Fargo Bank is an affiliate of Synthetic Fixed-Income Securities, Inc., the sponsor of the issuing entity and the depositor of
the issuing entity and Wells Fargo Securities, LLC (formerly known as Wachovia Capital Markets, LLC), who acted as an underwriter
of the Certificates issued by the issuing entity.

 The
Trustee is unaffiliated with, but may have normal banking relationships with, the sponsor, the depositor and their respective
affiliates.

 Item
1122 of Regulation AB. Compliance with Applicable Servicing Criteria.

 The
Trustee has been identified as a party participating in the servicing function during the reporting period with respect to the
pool assets held by the issuing entity. The Trustee's report on an assessment of compliance with the servicing criteria
applicable to it during the Issuing Entity's fiscal year ending December 31, 2023 and an attestation report by a registered
independent public accounting firm regarding the Trustee's related report on assessment are attached as exhibits to this
Form 10-K.

 Item
1123 of Regulation AB. Servicer Compliance Statement.

 The
Trustee has provided a compliance statement, signed by an authorized officer, attached as an exhibit to this Form 10-K.

 PART
IV

 Item
15. Exhibit and Financial Statement Schedules.

 (a) List
the following documents filed as a part of the report:

 (1) Not

 (2) Not

 (3) See
Item 15 (b), below.

 (b) Exhibits
Required by Item 601 of Regulation S-K.

 31.1
 Rule
 13a-14/15d-14 Certification (Section 302 Certification).

 33.1
 Report
 on Assessment of Compliance with Applicable Servicing Criteria of The Bank of New York
 Mellon for the year ended December 31, 2023.

 34.1
 Independent
 Accountants' Attestation Report concerning servicing activities of The Bank of
 New York Mellon for the year ended December 31, 2023.

 35.1
 Compliance
 Statement of The Bank of New York Mellon for the year ended December 31, 2023.

 (c) Omitted.

 Item
16. Form 10-K Summary.

 Not

 SIGNATURES

 Pursuant
to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report
to be signed on its behalf by the undersigned, thereunto duly authorized.

 Synthetic Fixed-Income Securities, Inc.

 (Depositor)

 Dated: March 29, 2024

 By:

 /s/ Barbara Garafalo

 Barbara Garafalo

 President

 (senior officer of depositor in charge of securitization)

 EXHIBIT

 EXHIBIT

 DESCRIPTION

 31.1

 Rule 13a-14/15d-14 Certification (Section 302 Certification).

 33.1

 Report on Assessment of Compliance with Applicable Servicing Criteria of The Bank of New York Mellon for the year ended December 31, 2023.

 34.1

 Independent Accountants' Attestation Report concerning servicing activities of The Bank of New York Mellon for the year ended December 31, 2023.

 35.1

 Servicer Compliance Statement of The Bank of New York Mellon for the year ended December 31, 2023.


ANNUAL REPORT

 UNITED
STATES

SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549

 FORM

 ANNUAL
 REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 FOR
 THE FISCAL YEAR ENDED DECEMBER 31, 2023

 OR

 TRANSITION
 REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 FOR
 THE TRANSITION PERIOD FROM TO

 Commission
File Number of issuing entity: 001-32848
 Central Index Key Number of issuing entity: 0001356284

 STRATS TRUST FOR GOLDMAN SACHS GROUP SECURITIES,

SERIES 2006-2

 (Exact name of issuing entity as specified in its
charter)

 Commission
File Number of depositor and sponsor: 001-31818
 Central Index Key number of depositor and sponsor:
 0001140396

 SYNTHETIC FIXED-INCOME SECURITIES, INC.

 (Exact name of depositor and sponsor as specified
in its charter)

 New
 York
 (State of incorporation or organization

 of the issuing entity)

 26-6115259
 (IRS Employer Identification No.)

 Hudson Yards, 14 th Floor

 New York, New York
 (Address of principal executive offices)

 10001-2170
 (Zip Code)

 (212)
 214-6289
 (Telephone Number)

 SECURITIES
REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

 Title
 of Each Class

 Trading
 Symbol(s)

 Name
 of Each Exchange on which Registered

 STRATS
 Certificates, Series 2006-2

 GJS

 New
 York Stock Exchange ("NYSE")

 SECURITIES
REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: NONE

by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

 Yes No

by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

 Yes No

by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports),
and (2) has been subject to such filing requirements for the past 90 days.

 Yes No

by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant
to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that
the registrant was required to submit such files).

 Yes
 No

by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting
company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer,"
"smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated filer

 Accelerated filer

 Non-accelerated filer

 Smaller Reporting Company

 Emerging growth Company

 If
an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for
complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness
of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered
public accounting firm that prepared or issued its audit report.

 If
securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the
registrant included in the filing reflect the correction of an error to previously issued financial statements.

by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation
received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b).

by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).

 Yes No

 State
the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price
at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day
of the registrant's most recently completed second fiscal quarter.

 Not
applicable.

 DOCUMENTS
INCORPORATED BY REFERENCE

 List
hereunder the following documents if incorporated by reference and the part of the Form 10-K (e.g., Part I, Part II, etc.) into
which the document is incorporated: (1) Any annual report to security holders; (2) Any proxy information statement; and, (3) Any
prospectus filed pursuant to Rule 424(b) or (c) under the Securities Act of 1933. The listed documents should be clearly described
for identification purposes (e.g., annual report to security holders for fiscal year ended December 24, 1980).

 None.

 PART
I

 The
following Items have been omitted in accordance with General Instruction J to Form 10-K:

 Item
1. Business.

 Item
1A. Risk Factors.

 Item
1C. Cybersecurity.

 Item
2. Properties.

 Item
3. Legal Proceedings.

 Item
1B. Unresolved Staff Comments.

 Not

 Item
4. Mine Safety Disclosures.

 Not

 PART
II

 The
following Items have been omitted in accordance with General Instruction J to Form 10-K:

 Item
5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

 Item
6. [Reserved]

 Item
7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

 Item
7A. Quantitative and Qualitative Disclosures About Market Risk.

 Item
8. Financial Statements and Supplementary Data.

 Item
9. Changes in and Disagreement with Accountants on Accounting and Financial Disclosure.

 Item
9A. Controls and Procedures.

 Item
9B. Other Information.

 None.

 Item
9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

 Not

 PART
III

 The
following Items have been omitted in accordance with General Instruction J to Form 10-K:

 Item
10. Directors, Executive Officers and Corporate Governance.

 Item
11. Executive Compensation.

 Item
12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

 Item
13. Certain Relationships and Related Transactions, and Director Independence.

 Item
14. Principal Accountant Fees and Services.

 Substitute
information provided in accordance with General Instruction J to Form 10-K:

 Item
1112(b) of Regulation AB. Significant Obligors of Pool Assets (Financial Information).

 The
Goldman Sachs Group Inc., the issuer of the underlying securities, is subject to the information reporting requirements of the
Securities Exchange Act of 1934 (the "Exchange Act"). For information on The Goldman Sachs Group Inc. please see its
periodic and current reports filed with the Securities and Exchange Commission (the "Commission") under its Exchange
Act file number, 001-14965. The Commission maintains a site on the World Wide Web at " at which
users can view and download copies of reports, proxy and information statements and other information filed electronically through
the Electronic Data Gathering, Analysis and Retrieval system, or "EDGAR." Periodic and current reports and other information
required to be filed pursuant to the Exchange Act by The Goldman Sachs Group, Inc. may be accessed on this site. Neither Synthetic
Fixed-Income Securities, Inc. nor the Trustee has participated in the preparation of such reporting documents, or made any due
diligence investigation with respect to the information provided therein. Neither Synthetic Fixed-Income Securities, Inc. nor
the Trustee has verified the accuracy or completeness of such documents or reports. There can be no assurance that events affecting
the issuer of the underlying securities or the underlying securities themselves have not occurred or have not yet been publicly
disclosed which would affect the accuracy or completeness of the publicly available documents described above.

 Item
1114(b)(2) of Regulation AB. Credit Enhancement and Other Support, Except for Certain Derivatives Instruments (Financial Information).

 None.

 Item
1115(b) of Regulation AB. Certain Derivatives Instruments (Financial Information).

 None.

 Item
1117 of Regulation AB. Legal Proceedings.

 There
are no legal proceedings pending, or any proceedings known to be contemplated, by governmental authorities against the depositor,
the Trustee or the issuing entity, or any property thereof, that is material to the holders of the Certificates.

 Item
1119 of Regulation AB. Affiliations and Certain Relationships and Related Transactions.

 In
accordance with the Instruction to Item 1119, affiliations and certain relationships and related transactions are described below
in response to this item.

 Wells
Fargo Bank, National Association ("Wells Fargo Bank"), as successor to Wachovia Bank, National Association, is the
"Swap Counterparty" with respect to its obligations under the ISDA Master Agreement including the Schedule thereto
and a confirmation thereunder, by and among the Swap Counterparty and the issuing entity, dated as of March 31, 2006. Wells
Fargo Bank is an affiliate of Synthetic Fixed-Income Securities, Inc., the sponsor of the issuing entity and the depositor of
the issuing entity and Wells Fargo Securities, LLC (formerly known as Wachovia Capital Markets, LLC), who acted as an underwriter
of the Certificates issued by the issuing entity.

 The
Trustee is unaffiliated with, but may have normal banking relationships with, the sponsor, the depositor and their respective
affiliates.

 Item
1122 of Regulation AB. Compliance with Applicable Servicing Criteria.

 The
Trustee has been identified as a party participating in the servicing function during the reporting period with respect to the
pool assets held by the issuing entity. The Trustee's report on an assessment of compliance with the servicing criteria
applicable to it during the Issuing Entity's fiscal year ending December 31, 2023 and an attestation report by a registered
independent public accounting firm regarding the Trustee's related report on assessment are attached as exhibits to this
Form 10-K.

 Item
1123 of Regulation AB. Servicer Compliance Statement.

 The
Trustee has provided a compliance statement, signed by an authorized officer, attached as an exhibit to this Form 10-K.

 PART
IV

 Item
15. Exhibit and Financial Statement Schedules.

 (a)
 List
the following documents filed as a part of the report:

 (1)
 Not

 (2)
 Not

 (3)
 See
Item 15 (b), below.

 (b)
 Exhibits
Required by Item 601 of Regulation S-K.

 31.1
 Rule
 13a-14/15d-14 Certification (Section 302 Certification).

 33.1
 Report
 on Assessment of Compliance with Applicable Servicing Criteria of The Bank of New York
 Mellon for the year ended December 31, 2023.

 34.1
 Independent
 Accountants' Attestation Report concerning servicing activities of The Bank of
 New York Mellon for the year ended December 31, 2023.

 35.1
 Compliance
 Statement of The Bank of New York Mellon for the year ended December 31, 2023.

 (c)
 Omitted.

 Item
16. Form 10-K Summary.

 Not

 SIGNATURES

 Pursuant
to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report
to be signed on its behalf by the undersigned, thereunto duly authorized.

 Synthetic Fixed-Income Securities,
 Inc.

 (Depositor)

 Dated: March 29, 2024

 By:

 /s/ Barbara Garafalo

 Barbara Garafalo

 President

 (senior officer of depositor in charge of securitization)

 EXHIBIT

 EXHIBIT

 DESCRIPTION

 31.1

 Rule 13a-14/15d-14 Certification (Section 302 Certification).

 33.1

 Report on Assessment of Compliance with Applicable Servicing Criteria of The Bank of New York Mellon for the year ended December 31, 2023.

 34.1

 Independent Accountants' Attestation Report concerning servicing activities of The Bank of New York Mellon for the year ended December 31, 2023.

 35.1

 Servicer Compliance Statement of The Bank of New York Mellon for the year ended December 31, 2023.