US 3-Month Bill Yield Rises to 3.99%
Brief · Published 2026-09-21 · Data period 2026-09-18
This brief was generated automatically from the published data; no human byline is attached. Read the methodology.
The 3-month bill yield rose to 3.99% on September 18, from 3.97% previously. The yield has climbed from 3.78% at the start of the month and is above its year-ago level of 3.89%. It remains far below the all-time high of 17.14% set in December 1980 and above the all-time low of -0.05% recorded in March 2020.
Related
- United States Effective Federal Funds Rate
- United States 10-Year Government Bond Yield
- United States 2-Year Government Bond Yield
- United States 30-Year Government Bond Yield
- US 3-Month Bill Yield Edges Up to 4.02%
- US 3-Month Bill Yield Edges Down to 3.97%
- US 3-Month Bill Yield Rises to 3.99%
- United States 3-Month Bill Yield Rises to 4.0%
Source & methodology
Data source: Federal Reserve Bank of St. Louis.
Values are verified on ingest and republished only when the source revises. How we source and standardize data, including how to request an audit trail for any value.