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

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

Units:  Millions of Dollars, Not Seasonally Adjusted

Frequency:  Weekly, Ending Wednesday

Notes:

The Board of Governors discontinued the H.3 statistical release on September 17, 2020. For more information, please see the announcement posted on August 20, 2020.

Balances maintained that exceed the top of the penalty-free band is calculated separately for each institution and then aggregated. If an institution maintains an average level of reserve balances over a maintenance period above the top of its penalty-free band, then balances maintained that exceed the top of the penalty-free band is equal to the institution's average level of reserve balances maintained over a maintenance period less the top of its penalty-free band. For all other institutions, balances maintained that exceed the top of the penalty-free band is zero. This series equals the sum of balances maintained that exceed the top of each institution's penalty-free band.

Effective February 2, 1984, reserve computation and maintenance periods have been changed from weekly to bi-weekly. Series with data prior to February 2, 1984 have different values reported from one week to the next. After February 2, 1984, the value repeats for 2 consecutive weeks.