System Open Market Account Holdings

The System Open Market Account (SOMA), managed by the Federal Reserve Bank of New York, contains dollar-denominated assets acquired via open market operations. These securities serve three purposes:

  • Collateral for U.S. currency in circulation and other reserve factors that show up as liabilities on the Federal Reserve System's balance sheet
  • A tool for the Fed’s management of reserve balances
  • A store of liquidity in the event an emergency need for liquidity arises
FAQs: Agency MBS Reinvestment Purchases »
FAQs: Treasury Rollovers »
FAQs: Agency MBS CUSIP Aggregation »
Cumulative Purchases of Longer-term Treasury Securities (Jan. 2013 – Oct. 2014)
SOMA Historical Data is available for download. See the Data Export Builder below.
SOMA Historical Average Duration and 10-Year Equivalents