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Structured Securities Group (SSG)

The NAIC's Structured Securities Group (SSG), another group within the Capital Markets & Investment Analysis Office, is responsible for the analysis of Residential Mortgage Backed Securities (RMBS) and Commercial Mortgage Backed Securities (CMBS) owned by state regulated insurance companies subject to Statement of Statutory Accounting Principles No. 43 Revised - Loan-Backed and Structured Securities. Insurance companies report ownership of securities to the Capital Markets and Investment Analysis Office when such securities are eligible for filing on Schedule D or DA of the NAIC Financial Statement Blank.

The SSG group primarily support the Valuation of  Securities Task Force (VOS/TF), a subgroup of the Financial Condition (E) Committee, but also supports other Task Forces and  Working Groups that involve investments.


Please contact the SSG at  for general information. 

For specific issues or concerns please contact Eric Kolchinsky, Director, Structured Securities Group , at 212.386.1943.or

Filing Instructions & Forms:

General Information:

Special Comment:

Reporting Interface
Contacts for RMBS / CMBS Initiative

The NAIC looks forward to working with insurers to provide the appropriate structured securities information to facilitate the year-end Annual Statement filing process. Please direct inquiries as follows:

NAIC Help Center (login with your VISION or AVS+ ID to create a help request)

Statutory accounting and/or RBC treatment: 816-783-8400, select RMBS option.

Billing or AVS+ questions:  816-783-8300, select option #5 or

Questions pertaining to modeling process, analytics & results: 212-398-9000 or


Page last updated: 1/24/2024

This website is your source for information on annual Structured Securities surveillance, including background information, updated project details as they become available, and how to file these securities in your Annual Statement filing.

Please note that the contents of this website are updated periodically to provide the most up-to-date information. Please check back regularly to ensure that you have the latest information.

Pricing: The 2023 Structured Securities modeled data prices for CUSIPs held by insurers is $105 per CMBS CUSIP and $75 per RMBS CUSIP.

Updates and News

The implementation of the full range of 20 NAIC Designation Categories in the NAIC’s CMBS/RMBS year-end financial modeling took place last year-end 2022. This is to support the updated Risk Based Capital factors that were adopted in 2021. As part of the implementation, several changes are being made to the macroeconomic scenarios and probability assignments.

Please refer to a recent amendment to Part 4 of the P&P Manual and the Modeling Update meeting material prepared for the Valuation of Securities (E) Task Force:

In summary:

  • The price breakpoint calculation for Legacy CMBS/RMBS and NAIC Designation Category mapping for Non-legacy CMBS/RMBC will reflect the updated RBC factors.
  • The total number of scenarios increases to 8 from 4; these scenarios are meant to be through-the-cycle.
  • Probability weights have been reallocated to accommodate the additional scenarios.

Also of note from previous year:

Each financially modeled Non-Legacy Security (RMBS and CMBS that closed on or after January 1, 2013*) will receive a single NAIC Designation and NAIC Designation category rather than Price Grids (breakpoints). Price Grids will continue to be provided for financially modelled RMBS and CMBS Legacy Securities (RMBS and CMBS that closed prior to January 1, 2013).

You can see additional details related to this change on AVS+ Bulletin Board and in the amendment document adopted by the Valuation of Securities (E) Task Force.

For further details and latest relevant information, please visit the Valuation of Securities (E) Task Force webpage.

*For re-REMICs, the Legacy and Non-Legacy classification of underlying securities will determine whether each RMBS/CMBS is to be assigned a single NAIC Designation and Designation Category or is subject to price breakpoints.

If you have any questions, please contact us at 816-783-8707 or


Timeline for YE 2023 Surveillance:


October 6, 2023 - Last day to order and purchase additional modeled results for last year's 2022 portfolio.

November 1, 2023 – Through-the-cycle Macroeconomic Scenarios and Probability Weightings for the Year-End Annual Surveillance of Insurer-Owned RMBS and CMBS will remain the same (through the cycle) and are posted on the Structured Securities Homepage

November 1, 2023 - Initial invoice notifications will be emailed to the designated contact. The amount of the invoice is based on the modeling eligibility status of Initial Securities[1].

November 1, 2023 - Of the Initial Securities[1], those RMBS/CMBS that are pending to be modeled (To-be-Modeled Securities) will be posted on the RMBS/CMBS Securities Listing webpage.

November 1 to 14, 2023 - Companies can submit Additional Securities[2] to their portfolios to be considered for modeling and inclusion in the December file.

November 14, 2023 (11:59 p.m. CT)Deadline for submitting Additional Securities[2] to be considered for modeling and inclusion in the December file. Submissions received after this date (Addendum Additional Securities) will be considered for modeling and inclusion in the January addendum file.

November 1, 2023 to January 1, 2024 - Companies can challenge the modeling eligibility status in AVS+ under the "Searches > Structured Securities > Challenge STS Security".

December 18, 2023 - To-be-Modeled Securities list on RMBS/CMBS Securities Listing webpage updated with modeling eligibility status for Securities  Requested for Consideration. 

December 22, 2023 - Modeled results made available to users via AVS+ Structured Securities.

January 1, 2024 (11:59 p.m. CT) - Deadline for submitting Addendum Additional Securities and challenging the modeling eligibility status in AVS+ Structured Securities.

January 23, 2024 - Addendum file modeled results made available to users via AVS+ Structured Securities.


[1] Initial Securities - RMBS/CMBS reported in the previous year's annual statement filing, adjusted for changes reported in the first quarter and second quarter of current year filings.

[2] Additional Securities - RMBS/CMBS holdings of companies that were not captured in the Initial Securities list.