Treasury bill

912797UY1

Original term
26-Week
Maturity
Nov 12, 2026
Coupon
Pays
None
Dated
First coupon
Priced through
Sep 9, 2026
Analyzed through
Sep 9, 2026

Statement of August 31, 2026

Amount outstanding
$179.39bn
Held stripped
not strippable
Share stripped

This security cannot be stripped, so no stripped figure exists for it rather than one that is zero. Stripping separates a coupon security into its individual interest and principal payments, which needs more than one cashflow to separate. Market statistics.

Amount outstanding as reported by Treasury, in its Monthly Statement of the Public Debt. The Safe Rate indices weight on a different figure, float-adjusted original par, and the two are not comparable security by security. The index figures are published per holding.

Risk, September 9, 2026

Yield to maturity
3.837%
Modified duration
0.171 yr
DV01
0.0017
Convexity
0.059
Dirty price
99.342

Where its rate sensitivity sits

All of it in one place. A bill pays a single cashflow at maturity, so its key rate profile is its modified duration of 0.171 years, sitting in the nearest bucket and nothing anywhere else. That is also why its duration equals its remaining term rather than being shorter: there are no coupons to pull the average payment date forward. A twelve-bucket chart of that would be eleven empty bars.

Against the money market curve

Priced 0.4 bp cheap to the curve on that day, 0.06 cents per 100 of face.

Not scored against its own history. The z-score is written by a separate pass, and a security needs twenty observations before one is meaningful, so a new issue carries none for roughly its first month. An absent score is not evidence that a security is fairly priced.

Yield to maturity, 81 observations

3.70%3.75%3.80%3.85%3.90%3.95%May 14, 2026Sep 9, 2026May 14, 2026Yield to maturity3.728%May 15, 2026Yield to maturity3.737%May 18, 2026Yield to maturity3.726%May 19, 2026Yield to maturity3.726%May 20, 2026Yield to maturity3.715%May 21, 2026Yield to maturity3.736%May 22, 2026Yield to maturity3.745%May 26, 2026Yield to maturity3.755%May 27, 2026Yield to maturity3.754%May 28, 2026Yield to maturity3.754%May 29, 2026Yield to maturity3.742%Jun 1, 2026Yield to maturity3.752%Jun 2, 2026Yield to maturity3.742%Jun 3, 2026Yield to maturity3.752%Jun 4, 2026Yield to maturity3.751%Jun 5, 2026Yield to maturity3.771%Jun 8, 2026Yield to maturity3.771%Jun 9, 2026Yield to maturity3.760%Jun 10, 2026Yield to maturity3.759%Jun 11, 2026Yield to maturity3.769%Jun 12, 2026Yield to maturity3.758%Jun 15, 2026Yield to maturity3.757%Jun 16, 2026Yield to maturity3.757%Jun 17, 2026Yield to maturity3.830%Jun 18, 2026Yield to maturity3.839%Jun 22, 2026Yield to maturity3.870%Jun 23, 2026Yield to maturity3.859%Jun 24, 2026Yield to maturity3.869%Jun 25, 2026Yield to maturity3.879%Jun 26, 2026Yield to maturity3.846%Jun 29, 2026Yield to maturity3.877%Jun 30, 2026Yield to maturity3.866%Jul 1, 2026Yield to maturity3.866%Jul 2, 2026Yield to maturity3.833%Jul 6, 2026Yield to maturity3.833%Jul 7, 2026Yield to maturity3.853%Jul 8, 2026Yield to maturity3.863%Jul 9, 2026Yield to maturity3.831%Jul 10, 2026Yield to maturity3.830%Jul 13, 2026Yield to maturity3.871%Jul 14, 2026Yield to maturity3.819%Jul 15, 2026Yield to maturity3.808%Jul 16, 2026Yield to maturity3.818%Jul 17, 2026Yield to maturity3.827%Jul 20, 2026Yield to maturity3.827%Jul 21, 2026Yield to maturity3.858%Jul 22, 2026Yield to maturity3.878%Jul 23, 2026Yield to maturity3.919%Jul 24, 2026Yield to maturity3.918%Jul 27, 2026Yield to maturity3.938%Jul 28, 2026Yield to maturity3.886%Jul 29, 2026Yield to maturity3.803%Jul 30, 2026Yield to maturity3.782%Jul 31, 2026Yield to maturity3.822%Aug 3, 2026Yield to maturity3.821%Aug 4, 2026Yield to maturity3.811%Aug 5, 2026Yield to maturity3.800%Aug 6, 2026Yield to maturity3.820%Aug 7, 2026Yield to maturity3.809%Aug 10, 2026Yield to maturity3.808%Aug 11, 2026Yield to maturity3.808%Aug 12, 2026Yield to maturity3.807%Aug 13, 2026Yield to maturity3.797%Aug 14, 2026Yield to maturity3.796%Aug 17, 2026Yield to maturity3.795%Aug 18, 2026Yield to maturity3.784%Aug 19, 2026Yield to maturity3.784%Aug 20, 2026Yield to maturity3.773%Aug 21, 2026Yield to maturity3.782%Aug 24, 2026Yield to maturity3.782%Aug 25, 2026Yield to maturity3.782%Aug 26, 2026Yield to maturity3.771%Aug 27, 2026Yield to maturity3.760%Aug 28, 2026Yield to maturity3.811%Aug 31, 2026Yield to maturity3.821%Sep 1, 2026Yield to maturity3.820%Sep 2, 2026Yield to maturity3.820%Sep 3, 2026Yield to maturity3.809%Sep 4, 2026Yield to maturity3.807%Sep 8, 2026Yield to maturity3.817%Sep 9, 2026Yield to maturity3.837%

Price history

81 trading days to Sep 9, 2026

98.0098.2598.5098.7599.0099.2599.50May 14, 2026Sep 9, 2026May 14, 2026Close98.185May 15, 2026Close98.210May 18, 2026Close98.225May 19, 2026Close98.235May 20, 2026Close98.250May 21, 2026Close98.250May 22, 2026Close98.286May 26, 2026Close98.291May 27, 2026Close98.301May 28, 2026Close98.311May 29, 2026Close98.346Jun 1, 2026Close98.352Jun 2, 2026Close98.367Jun 3, 2026Close98.372Jun 4, 2026Close98.382Jun 5, 2026Close98.404Jun 8, 2026Close98.414Jun 9, 2026Close98.428Jun 10, 2026Close98.439Jun 11, 2026Close98.445Jun 12, 2026Close98.479Jun 15, 2026Close98.489Jun 16, 2026Close98.499Jun 17, 2026Close98.481Jun 18, 2026Close98.518Jun 22, 2026Close98.517Jun 23, 2026Close98.531Jun 24, 2026Close98.538Jun 25, 2026Close98.544Jun 26, 2026Close98.587Jun 29, 2026Close98.586Jun 30, 2026Close98.600Jul 1, 2026Close98.611Jul 2, 2026Close98.663Jul 6, 2026Close98.674Jul 7, 2026Close98.677Jul 8, 2026Close98.684Jul 9, 2026Close98.705Jul 10, 2026Close98.736Jul 13, 2026Close98.733Jul 14, 2026Close98.760Jul 15, 2026Close98.774Jul 16, 2026Close98.781Jul 17, 2026Close98.808Jul 20, 2026Close98.819Jul 21, 2026Close98.820Jul 22, 2026Close98.824Jul 23, 2026Close98.822Jul 24, 2026Close98.854Jul 27, 2026Close98.859Jul 28, 2026Close98.884Jul 29, 2026Close98.918Jul 30, 2026Close98.934Jul 31, 2026Close98.954Aug 3, 2026Close98.964Aug 4, 2026Close98.977Aug 5, 2026Close98.990Aug 6, 2026Close98.995Aug 7, 2026Close99.029Aug 10, 2026Close99.039Aug 11, 2026Close99.049Aug 12, 2026Close99.060Aug 13, 2026Close99.073Aug 14, 2026Close99.103Aug 17, 2026Close99.114Aug 18, 2026Close99.126Aug 19, 2026Close99.137Aug 20, 2026Close99.149Aug 21, 2026Close99.178Aug 24, 2026Close99.188Aug 25, 2026Close99.198Aug 26, 2026Close99.211Aug 27, 2026Close99.223Aug 28, 2026Close99.244Aug 31, 2026Close99.252Sep 1, 2026Close99.262Sep 2, 2026Close99.273Sep 3, 2026Close99.285Sep 4, 2026Close99.327Sep 8, 2026Close99.335Sep 9, 2026Close99.342
The most recent 20 trading days of prices for 912797UY1.
DateBidOfferClose
Sep 9, 202699.33699.33599.342
Sep 8, 202699.32799.32599.335
Sep 4, 202699.28599.28399.327
Sep 3, 202699.27799.27599.285
Sep 2, 202699.26399.26299.273
Sep 1, 202699.25299.25099.262
Aug 31, 202699.24699.24499.252
Aug 28, 202699.21499.21099.244
Aug 27, 202699.21499.21399.223
Aug 26, 202699.20299.20199.211
Aug 25, 202699.18999.18899.198
Aug 24, 202699.17999.17899.188
Aug 21, 202699.14899.14799.178
Aug 20, 202699.14099.13999.149
Aug 19, 202699.12899.12699.137
Aug 18, 202699.11799.11699.126
Aug 17, 202699.10599.10399.114
Aug 14, 202699.07499.07399.103
Aug 13, 202699.06699.06599.073
Aug 12, 202699.05199.04999.060

Prices are per 100 of face, from Treasury's own end-of-day file. A dash in the bid or offer column means none was posted that day.

2 auctions

A CUSIP can be auctioned more than once: Treasury reopens an existing security rather than issuing a new one, so the same bond is sold again at whatever yield the market then wants.

Auction history for 912797UY1.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
May 11, 2026May 14, 2026New issue$77.0bn$81.8bn2.91x
Aug 10, 2026Aug 13, 2026Reopening$92.0bn$97.6bn2.88x

The curve this was priced against →

Index levels before September 30, 2026 are back-tested. They were computed after the fact by applying the rules to historical data, which benefits from hindsight in the choice of rules, and an index cannot be invested in directly. Methodology v1.0 takes effect at that rebalance, when levels begin to be struck on the day; the rulebook is identical either way, and the version is published on every row.

A fitted curve is a fit, not a quote. Daily error averages 3.8 basis points across the history and reaches about 20 on the worst days, in December 2008, when the market was genuinely hard to fit one smooth curve to. Every curve page publishes its own fit error rather than burying it.

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Safe Rate™, Safe Rate Indices™ and the Safe Rate US Treasury Index™ are trademarks of Safe Rate, claimed through use in commerce and not registered. Third-party marks are the property of their owners, which are not affiliated with and do not endorse this data.

Curves are fitted from public Treasury data and carry fit error; figures are not a record of trading, and an index cannot be invested in directly. No claim of compliance with the IOSCO Principles for Financial Benchmarks is made or implied. Not investment advice, not an offer, and not a recommendation to buy or sell any security.