Leaders in Mortgage Securitization
Common Securitization Solutions (CSS) serves as the largest and most technologically advanced mortgage securitization platform in the financial services industry, playing a critical role in the Single-Family housing market. We serve as a crucial operational enabler ensuring liquidity is circulated back to the primary lending mortgage market so Americans can purchase homes and refinance existing mortgages.
Who We Are
We are experts in mortgage securitization, technology, and data management, who help the housing finance market run efficiently and effectively.
We apply our client-centric, collaborative, and innovative team of experts to creatively develop operational and technological solutions to capitalize on opportunities and solve complex challenges.
We make business, operational, and regulatory processes simple to communicate and aggregate, and integrate client and market data with speed, reliability, confidence, and trust.
What We Do
CSS manages the issuance and administration for Fannie Mae and Freddie Mac’s Single-Family Mortgage-Backed Security (SF MBS) business, inclusive of the Uniform Mortgage-Backed Security (UMBS).
We built and operate the Common Securitization Platform (CSP), which is the first and only 100% cloud-based securitization platform of its kind.
- The platform securely and centrally houses Agency MBS data, including loan and pool level, payoffs, delinquency, historical performance, and much more.
- Our data-driven business intelligence capabilities allow near real-time reporting, analytics, and insights to support client needs.
CSS is committed to safety and soundness of the entire U.S. housing finance system with robust risk and cyber security management protocols and practices.
Our Impact
CSS plays a vital role for Fannie Mae and Freddie Mac (the Government-Sponsored Enterprises, or GSEs) by managing the issuance and administration of their Single-Family Mortgage-Backed Security (SF MBS) which represents a $15 trillion portfolio under management across all securitization deal structures – a scale unrivaled in the financial services industry. CSS does this with a critical focus on safety, soundness, resiliency, and risk management supporting the following volumes:
Our Ecosystem
To replenish their funds, so more people can buy homes, lenders sell or swap the mortgages on their books for securities through the secondary market.
1 of 7CSS administers the transition of individual mortgages into mortgage-backed securities. Once issued, investors can purchase MBS for their portfolios, like a stock or bond. The purchase of MBS by investors creates liquidity that enables lenders to issue new home loans, allowing more people in the United States to realize their dream of owning a home.
2 of 7CSS facilitates the registration and settlement of Fannie Mae and Freddie Mac Single-Family securities with the Federal Reserve Bank of New York.
3 of 7CSS administers the portfolio of securities which includes the generation and reporting of bond factors/payments to the paying agent, loan- and bond-level reporting to the investor community, and REMIC tax reporting to the IRS.
4 of 7Government-sponsored enterprises (GSEs) buy mortgage loans from lenders or facilitate the lender packaging them into securities called Mortgage-Backed Securities (MBS), which are then created and issued by CSS.
5 of 7Lenders facilitate the home buying process by providing mortgages to borrowers.
6 of 7Investors can purchase MBS for their portfolios like a stock or bond. Additionally, investors use data outputs from CSS to better understand their transactions.
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Lenders facilitate the home buying process by providing mortgages to borrowers.
1 of 7To replenish their funds, so more people can buy homes, lenders sell or swap the mortgages on their books for securities through the secondary market.
2 of 7CSS administers the transition of individual mortgages into mortgage-backed securities. Once issued, investors can purchase MBS for their portfolios, like a stock or bond. The purchase of MBS by investors creates liquidity that enables lenders to issue new home loans, allowing more people in the United States to realize their dream of owning a home.
3 of 7CSS facilitates the registration and settlement of Fannie Mae and Freddie Mac Single-Family securities with the Federal Reserve Bank of New York.
4 of 7CSS administers the portfolio of securities which includes the generation and reporting of bond factors/payments to the paying agent, loan- and bond-level reporting to the investor community, and REMIC tax reporting to the IRS.
5 of 7Government sponsored-enterprises (GSEs)
buy mortgage loans from lenders or facilitates
the lender packaging them into securities
called Mortgage-Backed Securities (MBS),
which are then created and issued by CSS.
Investors can purchase MBS for their portfolios like a stock or bond. Additionally, investors use data outputs from CSS to better understand their transactions.
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