--- title: "4-Week Treasury Bill Auction Results: Oct 1, 2026" description: "4-Week Treasury Bill, Oct 1, 2026: 3.89% high yield, 2.83x cover, indirects 63.9%. Full bidder split, tails and 12-month averages, updated as results cross." source: Helious canonical: "https://helious.io/auctions/4-week-bill" --- # 4-Week Treasury Bill Auction: Results, Schedule & History High yield 3.890% Oct 1, 2026 Tail — no when-issued Bid to cover 2.83 12m avg 2.87 Indirects 63.9% 12m avg 65.0% [Ask Helious about the 4-Week Treasury Bill auction](https://helious.io/?ask=How%20did%20the%20last%204-Week%20Treasury%20Bill%20auction%20go%20and%20what%20does%20the%20tail%20say%3F&from=/auctions/4-week-bill) High yield, last 12 auctions 3.890%3.758%3.625% 2026-07-162026-10-01 Human Agent Last result · Oct 1, 2026 3.89% b/c 2.83 · indirects 63.9% IN LINE { "tenor": "4-week-bill", "date": "2026-10-01", "offering_usd": 100000000000, "high_yield": 3.89, "tail_bps": null, "bid_to_cover": 2.83, "indirect_pct": 63.9, "verdict": "IN LINE" } The 4-Week Treasury Bill auction on Oct 1, 2026 put $100B on offer and stopped at a high yield of 3.89%. The bid-to-cover was 2.83, against a twelve-month average of 2.87. Indirects took 63.9%, directs 4.8% and primary dealers 31.4%. Helious captured the result live as it crossed and graded it IN LINE. The 4-week bill sits right on top of the Fed's policy rate, so nothing gives you a purer read on cash conditions at the front end. Put its stop-out rate next to IOR, what the Fed pays banks on reserves, and next to the RRP rate at the Fed's reverse repo window, and you can tell whether money funds are flush or scrambling for paper. When funding goes wrong it shows up here first, whether the cause is a fight over the debt ceiling or just the ordinary squeeze into quarter end. NEXT AUCTION Auctioned weekly: auctioned every tuesday, settles thursday; results cross ~11:30 ET. LATEST RESULT: OCT 1, 2026 3.89%high yield $100Bon offer 2.83bid-to-cover-0.04 vs avg 63.9%indirects-1.09 vs avg 4.8%directs+1.09 vs avg 31.4%dealer take+0.11 vs avg IN LINEdesk verdict [Full desk recap →](https://helious.io/news/auc-912797VP9-2026-10-01/4-week-1-month-bill-auction-in-line) 12-MONTH AVERAGES · 39 AUCTIONS 2.87bid-to-cover 64.99%indirects 3.71%directs 31.29%dealer take Read a new result against these numbers. When cover, indirects and directs come in above the average, that is solid investor demand. An above-average [dealer take](https://helious.io/learn/primary-dealers) means the street absorbed the balance. The shares are percentages of *competitive* accepted, so indirects, directs and dealers add up to 100. ## Recent auction results DATECUSIPISSUEOFFEREDHIGH YIELDTAILB/CINDIRECTSDIRECTSDEALERSDESK RECAP Oct 1, 2026Oct 1 ’26 912797VP9 Reopen $100B 3.890% — 2.83 63.9% 4.8% 31.4% [IN LINE →](https://helious.io/news/auc-912797VP9-2026-10-01/4-week-1-month-bill-auction-in-line) Sep 24, 2026Sep 24 ’26 912797VN4 Reopen $90B 3.850% — 2.61 46.2% 3.4% 50.4% [WEAK →](https://helious.io/news/auc-912797VN4-2026-09-24/4-week-1-month-bill-auction-weak) Sep 17, 2026Sep 17 ’26 912797VM6 Reopen $90B 3.820% — 3.02 69.9% 3.1% 27.0% [IN LINE →](https://helious.io/news/auc-912797VM6-2026-09-17/4-week-1-month-bill-auction-in-line) Sep 10, 2026Sep 10 ’26 912797VL8 Reopen $90B 3.775% — 2.81 71.8% 3.9% 24.3% [IN LINE →](https://helious.io/news/auc-912797VL8-2026-09-10/4-week-1-month-bill-auction-in-line) Sep 3, 2026Sep 3 ’26 912797VK0 Reopen $90B 3.700% — 2.97 67.6% 3.4% 29.0% [IN LINE →](https://helious.io/news/auc-912797VK0-2026-09-03/4-week-1-month-bill-auction-in-line) Aug 27, 2026Aug 27 ’26 912797VE4 Reopen $100B 3.650% — 2.73 66.0% 2.5% 31.5% [IN LINE →](https://helious.io/news/auc-912797VE4-2026-08-27/4-week-1-month-bill-auction-in-line) Aug 20, 2026Aug 20 ’26 912797VD6 Reopen $110B 3.640% — 2.84 65.5% 3.3% 31.3% [IN LINE →](https://helious.io/news/auc-912797VD6-2026-08-20/4-week-1-month-bill-auction-in-line) Aug 13, 2026Aug 13 ’26 912797VC8 Reopen $110B 3.625% — 2.77 57.1% 7.9% 35.0% [IN LINE →](https://helious.io/news/auc-912797VC8-2026-08-13/4-week-1-month-bill-auction-in-line) Aug 6, 2026Aug 6 ’26 912797VB0 Reopen $110B 3.640% — 2.68 55.8% 4.0% 40.1% [IN LINE →](https://helious.io/news/auc-912797VB0-2026-08-06/4-week-1-month-bill-auction-in-line) Jul 30, 2026Jul 30 ’26 912797UW5 Reopen $110B 3.630% — 2.80 65.0% 4.0% 31.0% [IN LINE →](https://helious.io/news/auc-912797UW5-2026-07-30/4-week-1-month-bill-auction-in-line) Jul 23, 2026Jul 23 ’26 912797UV7 Reopen $110B 3.730% — 2.79 65.5% 4.7% 29.8% [IN LINE →](https://helious.io/news/auc-912797UV7-2026-07-23/4-week-1-month-bill-auction-in-line) Jul 16, 2026Jul 16 ’26 912797UU9 Reopen $110B 3.660% — 2.57 53.7% 5.5% 40.8% [WEAK →](https://helious.io/news/auc-912797UU9-2026-07-16/4-week-1-month-bill-auction-weak) The **issue** column says which kind of auction it was. A [reopening](https://helious.io/learn/when-issued-yield) re-auctions a security that already exists, under the same CUSIP, and that is the norm for coupons outside refunding months. "New" sets a fresh coupon. **Offered** is the amount the Treasury announced for sale at that auction. The **tail** is the high yield minus the [when-issued](https://helious.io/learn/when-issued-yield) yield at the bid deadline, in basis points. A positive number means the auction had to concede yield to clear, and a negative one means it stopped through. A dash in that column means no tail exists, or none was captured. Bills never have one, because they price off a discount rate and have no when-issued market. Rows before desk coverage began in July 2026 predate tail capture, and the official records publish no when-issued yield at all. The last column, the **desk recap**, is the desk's live verdict, posted the moment results cross. The desk captures each result and backfills the rest from the full auction record · [download a sample (CSV, recent auctions)](https://helious.io/auctions/4-week-bill.csv). The full history comes through the [Helious API](https://helious.io/developers/) and MCP at [api.helious.io/mcp](https://api.helious.io/mcp), with depth set by plan. Read [what a tail means](https://helious.io/learn/auction-tail) · [bid-to-cover explained](https://helious.io/learn/bid-to-cover-ratio) · [who indirect bidders are](https://helious.io/learn/indirect-bidders) · [who direct bidders are](https://helious.io/learn/direct-bidders). [Watch the next auction live →](https://helious.io/)