Common Securitization Solutions (CSS) was established as a joint venture between Fannie Mae and Freddie Mac in 2014, as directed by their regulator, the Federal Housing Finance Agency (FHFA). The company's core mission is to operate the Common Securitization Platform (CSP), a modern, single-platform technology and data solution that facilitates the issuance and administration of Uniform Mortgage-Backed Securities (UMBS) for the two government-sponsored enterprises. By creating a unified system, CSS enhances efficiency, liquidity, and transparency in the secondary mortgage market, serving as a critical market utility for the U.S. housing finance system.

Founded in

United States