Source: Board of Governors of the Federal Reserve System (US)  

Release: H.6 Money Stock Measures  

Units:  Billions of Dollars, Seasonally Adjusted

Frequency:  Monthly

Notes:

The currency component of M1, sometimes called "money stock currency," is defined as currency in circulation outside the U.S. Treasury and Federal Reserve Banks. Data on total currency in circulation are obtained weekly from balance sheets of the Federal Reserve Banks and from the U.S. Treasury. Weekly currency in circulation data are published each week on the Federal Reserve Board's H.4.1 statistical release "Factors Affecting Reserve Balances of Depository Institutions and Condition Statement of Federal Reserve Banks." Vault cash is reported on the FR 2900 and subtracted from total currency in circulation. For institutions that do not file the FR 2900, vault cash is estimated using data reported on the Call Reports.

Source: Board of Governors of the Federal Reserve System (US)  

Release: H.3 Aggregate Reserves of Depository Institutions and the Monetary Base  

Units:  Billions of Dollars, Seasonally Adjusted

Frequency:  Monthly

Notes:

This series has been discontinued. As of July 11, 2013 data in the new H.3 statistical release are no longer adjusted for regulatory changes in reserve requirements and are no longer seasonally adjusted. You can access not seasonally adjusted series of total reserves at https://fred.stlouisfed.org/series/TOTRESNS.