FX.co ★ U.S. 4-Week Bill Auction Yield Eases to 3.910%, Extending Downward Drift

The yield on the U.S. 4-week Treasury bill slipped to 3.910% at the latest auction, down from 3.945% previously, according to data updated on 29 October 2026. The move marks a modest decline in short-term borrowing costs for the U.S. government.

The lower stop-out rate indicates that investors were willing to accept slightly less compensation for holding ultra-short-term government debt compared with the prior auction. This easing in the 4-week bill yield may reflect marginally stronger demand for short-duration safe assets or shifting expectations around the near-term interest rate environment.

While the change is relatively small in absolute terms, movements in the 4-week bill yield are closely watched by market participants as a barometer of immediate funding conditions and short-term market sentiment in the United States.