Observations

2026-05-13: 166,114

Updated: May 14, 2026 3:31 PM CDT

Units:

Millions of U.S. Dollars,

Not Seasonally Adjusted

Frequency:

Weekly,

As of Wednesday

Notes

Title	Release Dates

Assets - Securities, Repurchase Agreements, and Loans in FRB - Boston District	2011-07-07	2013-04-17
Assets: Securities, Unamortized Premiums and Discounts, Repurchase Agreements, and Loans in FRB - Boston District	2013-04-18	2019-08-20
Assets: Other: Securities, Premiums, Discounts, Repurchase Agreements, and Loans: District 1: Boston: Wednesday Level	2019-08-21	2020-07-23
Assets: Other: Securities, Premiums, Discounts, Repurchase Agreements, and Loans: Wednesday Level in Federal Reserve District 1: Boston	2020-07-24	2026-05-14

Source

Board of Governors of the Federal Reserve System (US)	2011-07-07	2026-05-14

Release

H.4.1 Factors Affecting Reserve Balances	2011-07-07	2026-05-14

Units

Millions of Dollars	2011-07-07	2019-08-20
Millions of U.S. Dollars	2019-08-21	2026-05-14

Frequency

Weekly, As of Wednesday	2011-07-07	2026-05-14

Seasonal Adjustment

Not Seasonally Adjusted	2011-07-07	2026-05-14

Notes

For questions on the data, please contact the data source (https://www.federalreserve.gov/apps/ContactUs/feedback.aspx?refurl=/releases/h41/%). For questions on FRED functionality, please contact us here (https://fred.stlouisfed.org/contactus/).	2025-11-13	2026-05-14

Release Tables

H.4.1 Factors Affecting Reserve Balances