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

Release: H.4.1 Factors Affecting Reserve Balances  

Units:  Millions of U.S. Dollars, Not Seasonally Adjusted

Frequency:  Weekly, As of Wednesday

Notes:

This series has been discontinued and will no longer be updated. It has been consolidated under the following series, which will continue to be updated: D3WSRLL.

For further information about the changes to the H.4.1 Statistical Release, please see the announcements provided by the source.