13-Week Treasury Bill Auction Results
Results of every 13-week Treasury bill auction from Oct 20, 2025 to Oct 13, 2026 (52 auctions), from the U.S. Treasury Fiscal Data API. The latest 13-week Treasury bill auction, on Oct 13, 2026, produced a high investment rate of 4.185% (+3.6 bp vs the prior auction on Oct 5, 2026), with a bid-to-cover ratio of 2.68.
U.S. Treasury securities: not FDIC-insured · not bank deposits · market value can change before maturity
- Latest high investment rate4.185%
- Low in this period3.622%
- High in this period4.211%
- Auctions on file52 since
Upcoming 13-week Treasury bill auctions
| Auction date | Security | Term | CUSIP | Offering amount | Issue date | Status | Source |
|---|---|---|---|---|---|---|---|
| Bill (reopening) | 13-Week | 912797TM9 | $95 billion | Announced | announcement PDF | ||
| Bill (reopening) | 13-Week | 912797VU8 | not yet announced | Tentative | Fiscal Data API |
Source: U.S. Treasury, Bureau of the Fiscal Service — Upcoming Auctions and Treasury Securities Auctions Data (Fiscal Data API), retrieved 2026-10-16 22:52 CDT. “Tentative” = on the Treasury schedule, offering announcement pending, so no amount yet; dates and amounts are set by Treasury and can change.
13-Week Treasury Bill auction history
| Auction date | Security | Term | CUSIP | Headline rate | Bid-to-cover | Change vs prior same-term | Source |
|---|---|---|---|---|---|---|---|
| Bill (reopening) | 13-Week | 912797VT1 | 4.185% inv. rate | 2.68 | +3.6 bp vs Oct 5 | results PDF | |
| Bill (reopening) | 13-Week | 912797VS3 | 4.149% inv. rate | 2.51 | −6.2 bp vs Sep 28 | results PDF | |
| Bill (reopening) | 13-Week | 912797VJ3 | 4.211% inv. rate | 2.99 | +9.8 bp vs Sep 21 | results PDF | |
| Bill (reopening) | 13-Week | 912797TC1 | 4.113% inv. rate | 2.77 | +4.7 bp vs Sep 14 | results PDF | |
| Bill (reopening) | 13-Week | 912797VH7 | 4.066% inv. rate | 2.64 | +17.6 bp vs Sep 8 | results PDF | |
| Bill (reopening) | 13-Week | 912797VG9 | 3.890% inv. rate | 2.61 | +3.1 bp vs Aug 31 | results PDF | |
| Bill (reopening) | 13-Week | 912797VA2 | 3.859% inv. rate | 2.77 | +5.6 bp vs Aug 24 | results PDF | |
| Bill (reopening) | 13-Week | 912797SU2 | 3.803% inv. rate | 3.08 | +0.1 bp vs Aug 17 | results PDF | |
| Bill (reopening) | 13-Week | 912797UZ8 | 3.802% inv. rate | 2.86 | −2.1 bp vs Aug 10 | results PDF | |
| Bill (reopening) | 13-Week | 912797UY1 | 3.823% inv. rate | 2.88 | −1.5 bp vs Aug 3 | results PDF | |
| Bill (reopening) | 13-Week | 912797UM7 | 3.838% inv. rate | 2.61 | −6.8 bp vs Jul 27 | results PDF | |
| Bill (reopening) | 13-Week | 912797SK4 | 3.906% inv. rate | 3.06 | +8.8 bp vs Jul 20 | results PDF | |
| Bill (reopening) | 13-Week | 912797UL9 | 3.818% inv. rate | 3.00 | −3.1 bp vs Jul 13 | results PDF | |
| Bill (reopening) | 13-Week | 912797UK1 | 3.849% inv. rate | 2.84 | +2.6 bp vs Jul 6 | results PDF | |
| Bill (reopening) | 13-Week | 912797UJ4 | 3.823% inv. rate | 2.58 | −0.5 bp vs Jun 29 | results PDF | |
| Bill (reopening) | 13-Week | 912797SA6 | 3.828% inv. rate | 2.32 | +4.6 bp vs Jun 22 | results PDF | |
| Bill (reopening) | 13-Week | 912797UH8 | 3.782% inv. rate | 2.68 | +5.7 bp vs Jun 15 | results PDF | |
| Bill (reopening) | 13-Week | 912797UG0 | 3.725% inv. rate | 2.47 | 0.0 bp vs Jun 8 | results PDF | |
| Bill (reopening) | 13-Week | 912797UF2 | 3.725% inv. rate | 2.79 | +1.1 bp vs Jun 1 | results PDF | |
| Bill (reopening) | 13-Week | 912797RS8 | 3.714% inv. rate | 2.69 | +3.6 bp vs May 26 | results PDF | |
| Bill (reopening) | 13-Week | 912797TY3 | 3.678% inv. rate | 3.08 | −0.6 bp vs May 18 | results PDF | |
| Bill (reopening) | 13-Week | 912797TX5 | 3.684% inv. rate | 3.17 | −1.0 bp vs May 11 | results PDF | |
| Bill (reopening) | 13-Week | 912797TW7 | 3.694% inv. rate | 2.86 | 0.0 bp vs May 4 | results PDF | |
| Bill (reopening) | 13-Week | 912797RG4 | 3.694% inv. rate | 2.76 | +2.1 bp vs Apr 27 | results PDF | |
| Bill (reopening) | 13-Week | 912797TQ0 | 3.673% inv. rate | 3.09 | −2.1 bp vs Apr 20 | results PDF | |
| Bill (reopening) | 13-Week | 912797TP2 | 3.694% inv. rate | 2.94 | −1.0 bp vs Apr 13 | results PDF | |
| Bill (reopening) | 13-Week | 912797TN7 | 3.704% inv. rate | 2.77 | −1.6 bp vs Apr 6 | results PDF | |
| Bill (reopening) | 13-Week | 912797RF6 | 3.720% inv. rate | 2.58 | +1.6 bp vs Mar 30 | results PDF | |
| Bill (reopening) | 13-Week | 912797TF4 | 3.704% inv. rate | 2.66 | −1.6 bp vs Mar 23 | results PDF | |
| Bill (reopening) | 13-Week | 912797TE7 | 3.720% inv. rate | 2.84 | +2.6 bp vs Mar 16 | results PDF | |
| Bill (reopening) | 13-Week | 912797TD9 | 3.694% inv. rate | 2.94 | +0.5 bp vs Mar 9 | results PDF | |
| Bill (reopening) | 13-Week | 912797QX8 | 3.689% inv. rate | 2.92 | −0.5 bp vs Mar 2 | results PDF | |
| Bill (reopening) | 13-Week | 912797SX6 | 3.694% inv. rate | 3.16 | +2.1 bp vs Feb 23 | results PDF | |
| Bill (reopening) | 13-Week | 912797SW8 | 3.673% inv. rate | 3.30 | −1.1 bp vs Feb 17 | results PDF | |
| Bill (reopening) | 13-Week | 912797SV0 | 3.684% inv. rate | 2.71 | 0.0 bp vs Feb 9 | results PDF | |
| Bill (reopening) | 13-Week | 912797QN0 | 3.684% inv. rate | 2.76 | 0.0 bp vs Feb 2 | results PDF | |
| Bill (reopening) | 13-Week | 912797SP3 | 3.684% inv. rate | 2.81 | +2.1 bp vs Jan 26 | results PDF | |
| Bill (reopening) | 13-Week | 912797SN8 | 3.663% inv. rate | 2.90 | −1.0 bp vs Jan 20 | results PDF | |
| Bill (reopening) | 13-Week | 912797SM0 | 3.673% inv. rate | 2.70 | +2.0 bp vs Jan 12 | results PDF | |
| Bill (reopening) | 13-Week | 912797QD2 | 3.653% inv. rate | 2.79 | +3.1 bp vs Jan 5 | results PDF | |
| Bill (reopening) | 13-Week | 912797SL2 | 3.622% inv. rate | 2.84 | −3.0 bp vs Dec 29 | results PDF | |
| Bill (reopening) | 13-Week | 912797SD0 | 3.652% inv. rate | 2.66 | +1.0 bp vs Dec 22 | results PDF | |
| Bill (reopening) | 13-Week | 912797SC2 | 3.642% inv. rate | 2.86 | 0.0 bp vs Dec 15 | results PDF | |
| Bill (reopening) | 13-Week | 912797PV3 | 3.642% inv. rate | 2.68 | −9.3 bp vs Dec 8 | results PDF | |
| Bill (reopening) | 13-Week | 912797SB4 | 3.735% inv. rate | 2.73 | −7.8 bp vs Dec 1 | results PDF | |
| Bill (reopening) | 13-Week | 912797RV1 | 3.813% inv. rate | 2.82 | −2.0 bp vs Nov 24 | results PDF | |
| Bill (reopening) | 13-Week | 912797RU3 | 3.833% inv. rate | 2.85 | −5.2 bp vs Nov 17 | results PDF | |
| Bill (reopening) | 13-Week | 912797PM3 | 3.885% inv. rate | 2.79 | +1.6 bp vs Nov 10 | results PDF | |
| Bill (reopening) | 13-Week | 912797RT6 | 3.869% inv. rate | 2.83 | −3.7 bp vs Nov 3 | results PDF | |
| Bill (reopening) | 13-Week | 912797RL3 | 3.906% inv. rate | 2.62 | +8.8 bp vs Oct 27 | results PDF | |
| Bill (reopening) | 13-Week | 912797RK5 | 3.818% inv. rate | 3.07 | −8.2 bp vs Oct 20 | results PDF | |
| Bill (reopening) | 13-Week | 912797PD3 | 3.900% inv. rate | 3.01 | — | results PDF |
Source: U.S. Treasury Fiscal Data API, Treasury Securities Auctions Data, retrieved 2026-10-16 22:52 CDT; each row links to the official TreasuryDirect results PDF. Bills: investment rate (bond-equivalent) and discount rate. Notes/bonds: high yield and coupon. TIPS: high real yield (before inflation adjustment). FRNs: high discount margin. bp = basis points (0.01 percentage point). Change compares the headline rate with the prior auction of the same security type and term.
Download: 13-week-bill.csv
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