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Single Security and the Common Securitization Platform (CSP)

Single Security Conference 2018

Single Security Conference 2018

Videos of the recent Single Security Conference now posted to Freddie Mac's Youtube Channel

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The Single Security is a joint initiative of Fannie Mae and Freddie Mac (the Enterprises), under the direction of FHFA, to develop a common mortgage-backed security that will be issued by the Enterprises to finance fixed-rate mortgage loans backed by one- to four-unit single-family properties. The Enterprises will align key components of Fannie Mae’s mortgage-backed securities (MBS) and Freddie Mac’s Participation Certificates (PCs). The goal is to bring additional liquidity and fungibility to the “To-Be-Announced” (TBA) market and to reduce or eliminate the trading disparities that exist today between the Enterprises’ TBA securities.

Key Milestones and Timeline

The implementation of the Single Security Initiative is dependent on the Common Securitization Platform (CSP). The CSP is a technology and operational platform that is being developed by Common Securitization Solutions, LLC, a joint venture of Fannie Mae and Freddie Mac. CSP will perform many of the core back office operations for the Single Security, as well as most of the Enterprises’ current securitization functions for single-family mortgages, on behalf of the Enterprises.

To learn more about these initiatives, refer to the Frequently Asked Questions (FAQs) available on these web pages.

Single Security Initiative/CSP Timeline

Single Security Initiative CSP timeline


Common Securitization Platform

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Please submit your contact information so we can share project updates and technical resources for you to use in support of your implementation of the Single Security.

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or comments.

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