Observations

Jan 2026: -0.13

Updated: Feb 2, 2026 4:03 PM CST

Units:

Percent,

Not Seasonally Adjusted

Frequency:

Monthly

Notes

Title	Release Dates

6-Month Treasury Bill Minus Federal Funds Rate	2014-06-19	2026-02-02

Source

Federal Reserve Bank of St. Louis	2014-06-19	2026-02-02

Release

Interest Rate Spreads	2014-06-19	2026-02-02

Units

Percent	2014-06-19	2026-02-02

Frequency

Monthly	2014-06-19	2026-02-02

Seasonal Adjustment

Not Seasonally Adjusted	2014-06-19	2026-02-02

Notes

Series is calculated as the spread between 6-Month Treasury Bill: Secondary Market Rate (https://fred.stlouisfed.org/series/TB6MS) and Effective Federal Funds Rate (https://fred.stlouisfed.org/series/FEDFUNDS).	2014-06-19	2026-02-02

6-Month Treasury Bill Minus Federal Funds Rate (TB6SMFFM)