*Statistics

US Mortgage Backed Securities Statistics

Published on:
October 15, 2025

SIFMA Research tracks the current landscape for U.S. mortgage-backed securities, including issuance, trading, and outstanding data. We also break out issuance and outstanding into several subcategories across the MBS sector for both agency and non-agency securities. Trading volumes are reported in the number of trades and dollar amounts for both agency and nonagency MBS. Data is downloadable by daily (trading volumes only), monthly, quarterly and annual statistics including trend analysis.

YTD statistics include (as of end-September):

  • Issuance $1,356.2 billion, +20.9% Y/Y
  • Agency Trading $353.6 billion ADV, +16.5% Y/Y
  • Non-Agency Trading $1,780.3 million ADV, +23.9% Y/Y

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