<SEC-DOCUMENT>0001999371-25-010646.txt : 20250806
<SEC-HEADER>0001999371-25-010646.hdr.sgml : 20250806
<ACCEPTANCE-DATETIME>20250806082329
ACCESSION NUMBER:		0001999371-25-010646
CONFORMED SUBMISSION TYPE:	10-D
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250801
<DEPOSITOR-CIK>0001140396
<SPONSOR-CIK>0001140396
FILED AS OF DATE:		20250806
DATE AS OF CHANGE:		20250806
ABS ASSET CLASS:             	Debt Securities

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STRATS(SM) Trust for Allstate Corp Securities, Series 2006-3
		CENTRAL INDEX KEY:			0001357660
		STANDARD INDUSTRIAL CLASSIFICATION:	ASSET-BACKED SECURITIES [6189]
		ORGANIZATION NAME:           	Office of Structured Finance
		EIN:				000000000

	FILING VALUES:
		FORM TYPE:		10-D
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32867
		FILM NUMBER:		251187587

	BUSINESS ADDRESS:	
		STREET 1:		301 SOUTH COLLEGE STREET
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28288
		BUSINESS PHONE:		7047152337

	MAIL ADDRESS:	
		STREET 1:		301 SOUTH COLLEGE STREET
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28288
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-D
<SEQUENCE>1
<FILENAME>strats20063-10d_080125.htm
<DESCRIPTION>PERIODIC DISTRIBUTION REPORT
<TEXT>
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<!-- Field: Rule-Page --><DIV STYLE="margin-top: 12pt; margin-bottom: 3pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="font: 14pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
<FONT STYLE="font-size: 12pt">Washington, D.C. 20549</FONT></B></P>

<P STYLE="font: 14pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><B><FONT STYLE="font-size: 12pt">&nbsp;</FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><B>&nbsp;</B></P>


<P STYLE="font: 18pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><B>FORM 10-D</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><B>ASSET-BACKED ISSUER<BR>
DISTRIBUTION REPORT PURSUANT TO SECTION 13 OR 15(d) OF<BR>
THE SECURITIES EXCHANGE ACT OF 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 6pt; margin-bottom: 0pt">For the monthly distribution period from<BR>
<B><U>July 1, 2025</U>&nbsp;&nbsp;&nbsp;</B>to&nbsp;&nbsp;&nbsp;<B><U>August 1, 2025</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 14pt 0 0"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="width: 32%">Commission File Number of Issuing entity:</TD>
  <TD STYLE="width: 68%"><B>001-32867</B></TD>
  </TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>Central Index Key Number of Issuing entity:</TD>
  <TD><B>0001357660</B></TD>
  </TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0"></P>


<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 14pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="white-space: nowrap; width: 9%">&nbsp;</TD>
  <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; text-align: center; width: 81%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 20pt"><B>STRATS(SM)
  TRUST FOR ALLSTATE <BR>
  CORPORATION SECURITIES, SERIES 2006-3</B></FONT></TD>
  <TD STYLE="white-space: nowrap; width: 10%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">(Exact name of issuing entity as specified in its charter)</FONT></TD>
  <TD>&nbsp;</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0"></P>



<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="width: 32%">Commission File Number of depositor:</TD>
  <TD STYLE="width: 68%"><B>001-31818</B></TD>
  </TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>Central Index Key Number of depositor:</TD>
  <TD><B>0001140396</B></TD>
  </TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0"></P>


<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center; width: 13%">&nbsp;</TD>
  <TD STYLE="text-align: center; width: 72%"><B>Synthetic Fixed-Income Securities, Inc.</B></TD>
  <TD STYLE="text-align: center; width: 15%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="border-top: Black 1pt solid; text-align: center"><FONT STYLE="font-size: 10pt">(Exact name of depositor and sponsor as specified in its charter)</FONT></TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt"><B>Barbara Garafalo, (212) 214-6289</B></FONT></TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="border-top: Black 1pt solid; text-align: center"><FONT STYLE="font-size: 10pt">(Name and telephone number, including area code, of the person to contact
  in connection with this filing)</FONT></TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>New York</B></FONT></TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">(State or other jurisdiction of incorporation or organization of the issuing entity)</FONT></TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="text-align: center">&nbsp;</TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
  <TD STYLE="border-bottom: Black 1pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>52-2316399</B></FONT></TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
  <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">(I.R.S. Employer Identification No.)</FONT></TD>
  <TD STYLE="text-align: center">&nbsp;</TD></TR>
</TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0"></P>

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
    <TD STYLE="width: 15%">&nbsp;</TD>
  <TD STYLE="width: 34%"><P STYLE="text-align: center; margin-top: 0; margin-bottom: 0"><B>301 S. College Street</B></P>
                         <P STYLE="text-align: center; margin-top: 0; margin-bottom: 0"><FONT STYLE="font-size: 10pt"><B>Charlotte, NC</b></font></P></TD>
  <TD STYLE="width: 2%">&nbsp;</TD>
  <TD STYLE="vertical-align: bottom; text-align: center; width: 34%"><b>28288</b></TD>
    <TD STYLE="width: 15%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD>&nbsp;</TD>
  <TD STYLE="border-top: Black 1pt solid; text-align: center">(Address
                                        of principal executive offices of issuing entity)</TD>
  <TD>&nbsp;</TD>
  <TD STYLE="border-top: Black 1pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Zip Code)</font></TD>
    <TD>&nbsp;</TD></TR>
</TABLE>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0"></P>


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<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="width: 15%">&nbsp;</TD>
  <TD STYLE="border-bottom: Black 1pt solid; text-align: center; width: 70%"><font style="font-size: 10pt"><b>(212) 214-6289</b></font></TD>
  <TD STYLE="width: 15%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">(Telephone number, including area code)</FONT></TD>
  <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD><FONT STYLE="font-size: 10pt">&nbsp;</FONT></TD>
  <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD STYLE="border-bottom: Black 1pt solid; text-align: center"><font style="font-size: 10pt"><b>No Change</b></font></TD>
  <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">(Former name, former address, if changed since last report)</FONT></TD>
  <TD>&nbsp;</TD></TR>
</TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0"></P>



<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD COLSPAN="9" STYLE="padding-bottom: 12pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Registered/reporting pursuant to (check one)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; vertical-align: bottom; width: 39%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Title
    of Class</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 4%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; vertical-align: bottom; width: 9%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Section
    12(b)</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 4%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; vertical-align: bottom; width: 9%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Section
    12(g)</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 4%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; vertical-align: bottom; width: 11%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Section
    15(d)</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; vertical-align: bottom; width: 15%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Name
    of exchange<BR>
    (If Section 12(b))</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">STRATS Certificates, Series 2006-3</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9746;</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">New York Stock
    Exchange</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0">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.&#9;YES &#9746;&#9;NO &#9744;</P>


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<p style="margin-right: 0; font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0; margin-bottom: 0"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PART
I - DISTRIBUTION INFORMATION &nbsp;</b></font></p>

<p style="margin-right: 0; font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0; margin-bottom: 0"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&nbsp;</b></font></P>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 12.6pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Item
1. Distribution and Pool Performance Information.</b></font></p>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px 12.6pt; text-align: left">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px 12.6pt; text-align: left">On August 1, 2025, a distribution in respect of the August
1, 2025 scheduled distribution date was made to holders of the STRATS Certificates, Series 2006-3. Attached as Exhibit 99.1 is the Trustee&rsquo;s
Distribution Statement for the August 1, 2025 scheduled distribution date, prepared by The Bank of New York Mellon (formerly known as
The Bank of New York), as trustee.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px 12.6pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px 12.6pt">The record date for the Distribution Date was July 31, 2025
and the Collection Period for the Distribution Date was the period from but excluding July 1, 2025 through and including August 1, 2025.</P>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px 12.6pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px 12.6pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></font></P>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 12.6pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Item
1A. Asset-Level Information.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 27pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 12.6pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Item
1B. Asset Representations Reviewer and Investor Communication.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 27pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</font></p>

<p style="font: 10pt/15.6pt Times New Roman, Times, Serif; margin: 0 0 6pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PART
II - OTHER INFORMATION</b></font></p>

<p style="font: 10pt/13.8pt Times New Roman, Times, Serif; margin: 0 1.8pt 6pt 0.35in; text-indent: -0.15in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>ITEM
2 - LEGAL PROCEEDINGS.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.4in 6pt 0.35in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.2in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>ITEM
3 - SALES OF SECURITIES AND USE OF PROCEEDS.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.4in 6pt 0.35in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.2in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>ITEM
4 - DEFAULTS UPON SENIOR SECURITIES.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.4in 6pt 0.35in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.2in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>ITEM
5 - SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.4in 6pt 0.35in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.2in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>ITEM
6 - SIGNIFICANT OBLIGORS OF POOL ASSETS.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.4in 0px 0.35in"></P>

<P STYLE="font: 8pt Tahoma, Helvetica, Sans-Serif; margin: 0 0.4in 0px 0.35in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The Allstate Corporation, the issuer of the underlying securities, is subject
to the information reporting requirements of the Securities Exchange Act of 1934 (the &ldquo;Exchange Act&rdquo;). For information on
The Allstate Corporation please see its periodic and current reports filed with the Securities and Exchange Commission (the &ldquo;Commission&rdquo;)
under its Commission file number, 001-11840 and Central Index Key (CIK) number 0000899051. The Commission maintains a site on the World
Wide Web at http://www.sec.gov 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 &ldquo;EDGAR.&rdquo; Periodic and current
reports and other information required to be filed pursuant to the Exchange Act by The Allstate 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.</FONT></P>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px 0.2in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.2in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>ITEM
7 - CHANGE IN SPONSOR INTEREST IN THE SECURITIES.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 27pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.2in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>ITEM
8 - SIGNIFICANT ENHANCEMENT PROVIDER INFORMATION.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.4in 6pt 0.35in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.2in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>ITEM
9 - OTHER INFORMATION.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0.4in 6pt 0.35in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.2in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>ITEM
10 - EXHIBITS.</b></font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.6in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
Documents filed as part of this report.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 27pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exhibit
99.1 Trustee&rsquo;s Distribution Statement for the August 1, 2025 scheduled distribution date.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.6in"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
Exhibits required by Form 10-D and Item 601 of Regulation S-K.</font></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px 27pt"><font style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exhibit
99.1 Trustee&rsquo;s Distribution Statement for the August 1, 2025 scheduled distribution date.</font></P>

<P STYLE="font: 8pt Tahoma, Helvetica, Sans-Serif; margin: 0 0 0px 27pt">&nbsp;</p>

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<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 12pt; margin-bottom: 0"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0">Pursuant to the requirements 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.</P>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0"></P>

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  <TD>&nbsp;</TD>
  <TD COLSPAN="2" STYLE="text-align: center"><P STYLE="margin-top: 0; margin-bottom: 0"><B>STRATS(SM)</B> <B>TRUST FOR ALLSTATE CORPORATION SECURITIES, SERIES 2006-3</B></P>
                                             <P STYLE="margin-top: 0; margin-bottom: 0">(Issuing Entity)</p>
                                             <p style="margin-top: 0; margin-bottom: 0">Synthetic Fixed-Income Securities, Inc.<BR> (Depositor)</P></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD COLSPAN="2" STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD COLSPAN="2" STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="width: 50%">Date: August 1, 2025</TD>
  <TD STYLE="text-align: left; width: 5%">By:</TD>
  <TD STYLE="border-bottom: Black 1pt solid; text-align: left; width: 45%">/s/&nbsp;Barbara Garafalo</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD STYLE="text-align: left">Name:</TD>
  <TD STYLE="text-align: left">Barbara Garafalo&#9;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD STYLE="text-align: left">Title:</TD>
  <TD STYLE="text-align: left">President</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0"></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0; text-align: center"><B>EXHIBIT INDEX</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0; text-align: center"></P>

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    <TD STYLE="padding-bottom: 1pt; width: 5%">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 85%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Description</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="ex99-1.htm">Exhibit 99.1</A></FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Trustee&rsquo;s Distribution Statement for the August
    1,&#8239;2025 scheduled distribution date.</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0"></P>


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<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex99-1.htm
<DESCRIPTION>TRUSTEE'S DISTRIBUTION STATEMENT
<TEXT>
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<!-- Field: Rule-Page --><DIV STYLE="margin-top: 12pt; margin-bottom: 3pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="margin: 0"><A HREF="strats20063-10d_080125.htm">STRATS(SM) TRUST FOR ALLSTATE CORPORATION SECURITIES, SERIES 2006-3</A></P>

<P STYLE="margin: 0; text-align: right">&nbsp;</P>

<P STYLE="margin: 0; text-align: right"><B>Exhibit 99.1&nbsp;</B></P>

<P STYLE="margin: 0 0 0pt; text-align: right"><B></B></P>



<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 12pt; margin-bottom: 0"><B>Trustee&rsquo;s Distribution Statement</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 12pt 0 0px">To the Holders of:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0px"><B>STRATS(SM) &nbsp;TRUST FOR ALLSTATE CORPORATION SECURITIES, SERIES 2006-3</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0px"><B>Structured Repackaged Asset-Backed Trust Securities</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0px; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0%"></TD><TD STYLE="width: 15%; text-align: left"><B>*CUSIP:</B></TD><TD><FONT STYLE="font-size: 10pt"><B>86310N202 &ndash; Variable Floating
Rate Certificates</B></FONT></TD>
</TR></TABLE>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">The Bank of New York Mellon, as Trustee for the STRATS(SM) TRUST FOR ALLSTATE
CORPORATION SECURITIES, SERIES 2006-3, hereby gives notice with respect to the Scheduled Distribution Date of August 1st, 2025 (the &ldquo;Distribution
Date&rdquo;) as follows:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">1.</FONT></TD>
    <TD STYLE="width: 95%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">The amount received from Wachovia Bank, N.A. (the &ldquo;Swap Counterparty&rdquo;) on August 1st, 2025 was $78,170.83 and was distributed to Certificate holders as interest. The above amount was calculated by applying an interest rate of 5.1400 % to a notional amount of $18,250,000, pursuant to a swap agreement dated as of April 28, 2006 between the Trustee and the Swap Counterparty (the &ldquo;Swap Agreement&rdquo;).</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">2.</FONT></TD>
    <TD STYLE="width: 95%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">The amount of the distribution payable to the Certificateholders on the Distribution Date allocable to principal and premium, if any, and interest, expressed as a dollar amount per $25 Certificate is set forth below:</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top">Principal</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; text-align: center">Interest</TD>
    <TD COLSPAN="2" STYLE="vertical-align: top; text-align: center">Total Distribution</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top; background-color: rgb(204,238,255)">
    <TD>&nbsp;</TD>
    <TD>$</TD>
    <TD>0.000000</TD>
    <TD>$</TD>
    <TD>0.107083328767123</TD>
    <TD STYLE="text-align: center">$</TD>
    <TD COLSPAN="2">0.107083328767123</TD></TR>
  <TR STYLE="background-color: White">
    <TD STYLE="width: 17%">&nbsp;</TD>
    <TD STYLE="width: 3%">&nbsp;</TD>
    <TD STYLE="width: 16%">&nbsp;</TD>
    <TD STYLE="width: 3%">&nbsp;</TD>
    <TD STYLE="width: 31%">&nbsp;</TD>
    <TD STYLE="width: 3%">&nbsp;</TD>
    <TD STYLE="width: 25%">&nbsp;</TD>
    <TD STYLE="width: 2%">&nbsp;</TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">3.</FONT></TD>
    <TD STYLE="width: 95%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">The amount of aggregate interest due and not paid as of the Distribution Date is $0.000000.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">4.</FONT></TD>
    <TD STYLE="width: 95%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">No fees have been paid to the Trustee or any other party from the proceeds of the Underlying Securities.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">5.</FONT></TD>
    <TD STYLE="width: 95%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">At the close of business on July 1st, 2025 the first day of the distribution period to which this statement relates (the &quot;Beginning Date&quot;), $18,250,000 aggregate principal amount of The Allstate Corporation 5.95% Notes due 2036 (the &quot;Underlying Securities&quot;) were held for the above trust. At the close of business on the Distribution Date, $18,250,000 aggregate principal amount of the Underlying Securities were held for the above trust.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">6.</FONT></TD>
    <TD STYLE="width: 95%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">At the close of business on the Beginning Date, 730,000 Certificates representing $18,250,000 aggregate Certificate Principal Balance were outstanding. At the close of business on the Distribution Date, 730,000 Certificates representing $18,250,000 aggregate Certificate Principal Balance were outstanding.</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">7.</FONT></TD>
    <TD STYLE="width: 95%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">&nbsp;Pursuant to the Series Supplement, dated as of April 28, 2006, between the Depositor and the Trustee, the Trustee is required to establish an account in which to deposit all funds posted to secure the obligations of the Swap Counterparty under the Swap Agreement (the &ldquo;Collateral Account&rdquo;). At the close of business on the Beginning Date, the balance in the Collateral Account was 1,431,000.00. At the close of business on the Distribution Date, the balance in the Collateral Account was 1,431,000.00.</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">8.</FONT></TD>
    <TD STYLE="width: 95%; font: 12pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">The current rating of the Underlying Securities is not provided in this report.&nbsp;&nbsp;Ratings can be obtained from Standard &amp; Poor&rsquo;s Ratings Services, a division of The McGraw-Hill Companies, Inc., by calling 212-438-2400 and from Moody&rsquo;s Investors Service, Inc. by calling 212-553-0377.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="margin: 0"><FONT STYLE="font-size: 10pt">The Bank of New York, as Trustee</FONT></P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px">*The Trustee shall not be held responsible for the selection or use of
the CUSIP number nor is any representation made as to its correctness. It is included solely for the convenience of the Holders.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0px">&nbsp;</P>

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