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Memorandum Items: Custody Holdings: Marketable U.S. Treasury Securities: Week Average (WMTSEC1)

Observations

2026-09-02: 2,609,138
Updated: Sep 3, 2026 3:32 PM CDT
2026-09-02:  2,609,138  
2026-08-26:  2,601,927  
2026-08-19:  2,592,082  
2026-08-12:  2,608,934  
2026-08-05:  2,647,266  

Units:

Millions of U.S. Dollars,
Not Seasonally Adjusted

Frequency:

Weekly,
Ending Wednesday

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Notes

Title Release Dates
Memorandum Item: Securities Held in Custody for Foreign Official and International Accounts: Marketable U.S. Treasury Securities 2012-11-15 2019-08-20
Memorandum Items: Custody Holdings: Marketable U.S. Treasury Securities: Week Average 2019-08-21 2026-09-03
 
Source    
Board of Governors of the Federal Reserve System (US) 2012-11-15 2026-09-03
 
Release    
H.4.1 Factors Affecting Reserve Balances 2012-11-15 2026-09-03
 
Units    
Millions of Dollars 2012-11-15 2019-08-20
Millions of U.S. Dollars 2019-08-21 2026-09-03
 
Frequency    
Weekly, Ending Wednesday 2012-11-15 2026-09-03
 
Seasonal Adjustment    
Not Seasonally Adjusted 2012-11-15 2026-09-03
 
Notes    
The line item for U.S. Treasury securities held in custody now excludes securities pledged by the Federal Reserve as collateral in reverse repurchase agreements conducted with foreign official and international
accounts and includes inflation compensation on Treasury Inflation-Protected Securities (TIPS), which captures the inflation adjustment to original face value of TIPS over time. Prior data included securities pledged as
collateral against reverse repurchase agreements with the Federal Reserve and excluded inflation compensation on TIPS. Information on the amount of foreign official and international reverse repurchase agreements is still
presented in table 1 and included in total reverse repurchase agreements in table 8 and table 9. For further information
on the changes to the H.4.1 Statistical Release please visit the following: http://www.federalreserve.gov/releases/h41/20121115/

2012-11-15 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 2026-09-03

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Accounting Foreign H.4.1 Factors Affecting Reserve Balances All Items Treasury Securities Weekly Board of Governors Nation Public Domain: Citation Requested United States of America Not Seasonally Adjusted