Observations

2026-05-20: 103,339

Updated: May 21, 2026 3:33 PM CDT

Units:

Millions of U.S. Dollars,

Not Seasonally Adjusted

Frequency:

Weekly,

Ending Wednesday

Notes

Title	Release Dates

Factors Supplying Reserve Balances: Securities Held Outright: U.S. Treasury Securities: Inflation Compensation	2011-07-07	2019-08-20
Assets: Securities Held Outright: U.S. Treasury Securities: Inflation Compensation: Week Average	2019-08-21	2026-05-21

Source

Board of Governors of the Federal Reserve System (US)	2011-07-07	2026-05-21

Release

H.4.1 Factors Affecting Reserve Balances	2011-07-07	2026-05-21

Units

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

Frequency

Weekly, Ending Wednesday	2011-07-07	2026-05-21

Seasonal Adjustment

Not Seasonally Adjusted	2011-07-07	2026-05-21

Notes

Inflation compensation reflects adjustments for the effects of inflation to the principal of inflation-indexed securities.	2011-07-07	2025-11-12
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	2026-05-21

Release Tables

H.4.1 Factors Affecting Reserve Balances