Observations

2026-09-16: 202,071

Updated: Sep 17, 2026 3:32 PM CDT

Units:

Millions of U.S. Dollars,

Not Seasonally Adjusted

Frequency:

Weekly,

As of Wednesday

Notes

Title	Release Dates

Memorandum Item: Securities Held in Custody for Foreign Official and International Accounts: Federal Agency Debt and Mortgage-Backed Securities	2013-01-10	2019-08-20
Memorandum Items: Custody Holdings: Federal Agency Debt and Mortgage-Backed Securities: Wednesday Level	2019-08-21	2026-09-17

Source

Board of Governors of the Federal Reserve System (US)	2013-01-10	2026-09-17

Release

H.4.1 Factors Affecting Reserve Balances	2013-01-10	2026-09-17

Units

Millions of Dollars	2013-01-10	2019-08-20
Millions of U.S. Dollars	2019-08-21	2026-09-17

Frequency

Weekly, As of Wednesday	2013-01-10	2026-09-17

Seasonal Adjustment

Not Seasonally Adjusted	2013-01-10	2026-09-17

Notes

This item indicates the face value of federal agency securities and current face value of mortgage-backed securities, which is the remaining principal balance of the underlying mortgages.	2013-01-10	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	2026-09-17

Release Tables

H.4.1 Factors Affecting Reserve Balances