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Home > Releases > H.15 Selected Interest Rates > 4-Week Treasury Bill Secondary Market Rate, Discount Basis

4-Week Treasury Bill Secondary Market Rate, Discount Basis (WTB4WK)

2026-01-16: 3.58
Updated: Jan 20, 2026 3:16 PM CST
2026-01-16:  3.58  
2026-01-09:  3.56  
2026-01-02:  3.55  
2025-12-26:  3.57  
2025-12-19:  3.59  

Units:

Percent,
Not Seasonally Adjusted

Frequency:

Weekly,
Ending Friday

Fullscreen

Notes

Title Release Dates

2001-09-04 2026-01-20
 
Source    

2001-09-04 2026-01-20
 
Release    

2001-09-04 2026-01-20
 
Units    

2001-09-04 2026-01-20
 
Frequency    

2001-09-04 2026-01-20
 
Seasonal Adjustment    

2001-09-04 2026-01-20
 
Notes    

2001-09-04 2025-01-06
2025-01-07 2026-01-20