Treasury bond

912810TT5 · 4.125% due August 15, 2053

Original term
30-Year
Maturity
Aug 15, 2053
Coupon
4.125%
Pays
Semi-Annual
Dated
Aug 15, 2023
First coupon
Feb 15, 2024
Priced through
Nov 9, 2026
Analyzed through
Nov 9, 2026

Statement of October 31, 2026

Amount outstanding
$71.56bn
Held stripped
$13.05bn
Share stripped
18.24%

Stripped par is held as separate interest and principal components rather than as whole securities. The Safe Rate indices deliberately do not deduct it, and the whole-market figure is published so that decision can be argued with. 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, November 9, 2026

Yield to maturity
5.316%
Modified duration
14.807 yr
DV01
0.1245
Convexity
3.16
Dirty price
84.069

Where its rate sensitivity sits

0.01
0.01
0.04
0.09
0.21
0.39
0.63
1.23
1.67
1.67
6.22
2.80
3M
6M
1Y
2Y
3Y
5Y
7Y
10Y
15Y
20Y
25Y
30Y
Sensitivity to a one basis point move at each point on the curve, in years. Concentrated in 12 of twelve buckets, summing to 14.955 years against a modified duration of 14.807.

Against the fitted curve

Priced 0.4 bp rich to the curve on that day, 4.61 cents per 100 of face.

That is 0.46 standard deviations from its own typical residual.

Yield to maturity, 809 observations

3.5%4.0%4.5%5.0%5.5%6.0%Aug 15, 2023Nov 9, 2026Aug 15, 2023Yield to maturity4.321%Aug 21, 2023Yield to maturity4.451%Aug 25, 2023Yield to maturity4.296%Aug 31, 2023Yield to maturity4.199%Sep 7, 2023Yield to maturity4.358%Sep 13, 2023Yield to maturity4.337%Sep 19, 2023Yield to maturity4.430%Sep 25, 2023Yield to maturity4.663%Sep 29, 2023Yield to maturity4.728%Oct 5, 2023Yield to maturity4.887%Oct 12, 2023Yield to maturity4.859%Oct 18, 2023Yield to maturity4.989%Oct 24, 2023Yield to maturity4.949%Oct 30, 2023Yield to maturity5.033%Nov 3, 2023Yield to maturity4.762%Nov 9, 2023Yield to maturity4.778%Nov 15, 2023Yield to maturity4.693%Nov 21, 2023Yield to maturity4.589%Nov 28, 2023Yield to maturity4.539%Dec 4, 2023Yield to maturity4.445%Dec 8, 2023Yield to maturity4.328%Dec 14, 2023Yield to maturity4.056%Dec 20, 2023Yield to maturity4.007%Dec 27, 2023Yield to maturity3.970%Jan 3, 2024Yield to maturity4.070%Jan 9, 2024Yield to maturity4.199%Jan 16, 2024Yield to maturity4.322%Jan 22, 2024Yield to maturity4.336%Jan 26, 2024Yield to maturity4.397%Feb 1, 2024Yield to maturity4.119%Feb 7, 2024Yield to maturity4.327%Feb 13, 2024Yield to maturity4.480%Feb 20, 2024Yield to maturity4.462%Feb 26, 2024Yield to maturity4.423%Mar 1, 2024Yield to maturity4.350%Mar 7, 2024Yield to maturity4.267%Mar 13, 2024Yield to maturity4.364%Mar 19, 2024Yield to maturity4.458%Mar 25, 2024Yield to maturity4.439%Apr 1, 2024Yield to maturity4.481%Apr 5, 2024Yield to maturity4.556%Apr 11, 2024Yield to maturity4.663%Apr 17, 2024Yield to maturity4.716%Apr 23, 2024Yield to maturity4.740%Apr 29, 2024Yield to maturity4.759%May 3, 2024Yield to maturity4.670%May 9, 2024Yield to maturity4.618%May 15, 2024Yield to maturity4.528%May 21, 2024Yield to maturity4.567%May 28, 2024Yield to maturity4.671%Jun 3, 2024Yield to maturity4.565%Jun 7, 2024Yield to maturity4.561%Jun 13, 2024Yield to maturity4.414%Jun 20, 2024Yield to maturity4.402%Jun 26, 2024Yield to maturity4.460%Jul 2, 2024Yield to maturity4.615%Jul 9, 2024Yield to maturity4.503%Jul 15, 2024Yield to maturity4.472%Jul 19, 2024Yield to maturity4.465%Jul 25, 2024Yield to maturity4.517%Jul 31, 2024Yield to maturity4.371%Aug 6, 2024Yield to maturity4.198%Aug 12, 2024Yield to maturity4.217%Aug 16, 2024Yield to maturity4.175%Aug 22, 2024Yield to maturity4.155%Aug 28, 2024Yield to maturity4.153%Sep 4, 2024Yield to maturity4.082%Sep 10, 2024Yield to maturity3.986%Sep 16, 2024Yield to maturity3.959%Sep 20, 2024Yield to maturity4.091%Sep 26, 2024Yield to maturity4.145%Oct 2, 2024Yield to maturity4.162%Oct 8, 2024Yield to maturity4.342%Oct 15, 2024Yield to maturity4.331%Oct 21, 2024Yield to maturity4.502%Oct 25, 2024Yield to maturity4.531%Oct 31, 2024Yield to maturity4.484%Nov 6, 2024Yield to maturity4.635%Nov 13, 2024Yield to maturity4.664%Nov 19, 2024Yield to maturity4.608%Nov 25, 2024Yield to maturity4.485%Dec 2, 2024Yield to maturity4.392%Dec 6, 2024Yield to maturity4.367%Dec 12, 2024Yield to maturity4.586%Dec 18, 2024Yield to maturity4.685%Dec 24, 2024Yield to maturity4.803%Dec 31, 2024Yield to maturity4.823%Jan 7, 2025Yield to maturity4.944%Jan 13, 2025Yield to maturity5.001%Jan 17, 2025Yield to maturity4.873%Jan 24, 2025Yield to maturity4.880%Jan 30, 2025Yield to maturity4.792%Feb 5, 2025Yield to maturity4.669%Feb 11, 2025Yield to maturity4.783%Feb 18, 2025Yield to maturity4.812%Feb 24, 2025Yield to maturity4.693%Feb 28, 2025Yield to maturity4.554%Mar 6, 2025Yield to maturity4.632%Mar 12, 2025Yield to maturity4.678%Mar 18, 2025Yield to maturity4.621%Mar 24, 2025Yield to maturity4.704%Mar 28, 2025Yield to maturity4.681%Apr 3, 2025Yield to maturity4.530%Apr 9, 2025Yield to maturity4.759%Apr 15, 2025Yield to maturity4.825%Apr 22, 2025Yield to maturity4.923%Apr 28, 2025Yield to maturity4.731%May 2, 2025Yield to maturity4.830%May 8, 2025Yield to maturity4.883%May 14, 2025Yield to maturity5.017%May 20, 2025Yield to maturity5.008%May 27, 2025Yield to maturity4.983%Jun 2, 2025Yield to maturity5.032%Jun 6, 2025Yield to maturity5.012%Jun 12, 2025Yield to maturity4.882%Jun 18, 2025Yield to maturity4.925%Jun 25, 2025Yield to maturity4.869%Jul 1, 2025Yield to maturity4.810%Jul 8, 2025Yield to maturity4.979%Jul 14, 2025Yield to maturity5.004%Jul 18, 2025Yield to maturity5.032%Jul 24, 2025Yield to maturity4.989%Jul 30, 2025Yield to maturity4.927%Aug 5, 2025Yield to maturity4.802%Aug 11, 2025Yield to maturity4.871%Aug 15, 2025Yield to maturity4.955%Aug 21, 2025Yield to maturity4.951%Aug 27, 2025Yield to maturity4.944%Sep 3, 2025Yield to maturity4.924%Sep 9, 2025Yield to maturity4.735%Sep 15, 2025Yield to maturity4.682%Sep 19, 2025Yield to maturity4.771%Sep 25, 2025Yield to maturity4.775%Oct 1, 2025Yield to maturity4.740%Oct 7, 2025Yield to maturity4.751%Oct 14, 2025Yield to maturity4.639%Oct 20, 2025Yield to maturity4.597%Oct 24, 2025Yield to maturity4.612%Oct 30, 2025Yield to maturity4.674%Nov 5, 2025Yield to maturity4.763%Nov 12, 2025Yield to maturity4.694%Nov 18, 2025Yield to maturity4.772%Nov 24, 2025Yield to maturity4.709%Dec 1, 2025Yield to maturity4.771%Dec 5, 2025Yield to maturity4.820%Dec 11, 2025Yield to maturity4.820%Dec 17, 2025Yield to maturity4.860%Dec 23, 2025Yield to maturity4.858%Dec 30, 2025Yield to maturity4.838%Jan 6, 2026Yield to maturity4.893%Jan 12, 2026Yield to maturity4.868%Jan 16, 2026Yield to maturity4.862%Jan 23, 2026Yield to maturity4.855%Jan 29, 2026Yield to maturity4.878%Feb 4, 2026Yield to maturity4.944%Feb 10, 2026Yield to maturity4.811%Feb 17, 2026Yield to maturity4.712%Feb 23, 2026Yield to maturity4.730%Feb 27, 2026Yield to maturity4.663%Mar 5, 2026Yield to maturity4.774%Mar 11, 2026Yield to maturity4.893%Mar 17, 2026Yield to maturity4.884%Mar 23, 2026Yield to maturity4.962%Mar 27, 2026Yield to maturity5.025%Apr 2, 2026Yield to maturity4.923%Apr 8, 2026Yield to maturity4.924%Apr 14, 2026Yield to maturity4.906%Apr 20, 2026Yield to maturity4.915%Apr 24, 2026Yield to maturity4.943%Apr 30, 2026Yield to maturity5.024%May 6, 2026Yield to maturity4.978%May 12, 2026Yield to maturity5.069%May 18, 2026Yield to maturity5.182%May 22, 2026Yield to maturity5.115%May 29, 2026Yield to maturity5.033%Jun 4, 2026Yield to maturity5.021%Jun 10, 2026Yield to maturity5.073%Jun 16, 2026Yield to maturity4.968%Jun 23, 2026Yield to maturity4.987%Jun 29, 2026Yield to maturity4.904%Jul 6, 2026Yield to maturity5.037%Jul 10, 2026Yield to maturity5.115%Jul 16, 2026Yield to maturity5.137%Jul 22, 2026Yield to maturity5.201%Jul 28, 2026Yield to maturity5.143%Aug 3, 2026Yield to maturity5.280%Aug 7, 2026Yield to maturity5.246%Aug 13, 2026Yield to maturity5.261%Aug 19, 2026Yield to maturity5.242%Aug 25, 2026Yield to maturity5.212%Aug 31, 2026Yield to maturity5.292%Sep 4, 2026Yield to maturity5.287%Sep 11, 2026Yield to maturity5.401%Sep 17, 2026Yield to maturity5.330%Sep 23, 2026Yield to maturity5.450%Sep 29, 2026Yield to maturity5.648%Oct 5, 2026Yield to maturity5.719%Oct 9, 2026Yield to maturity5.655%Oct 16, 2026Yield to maturity5.473%Oct 22, 2026Yield to maturity5.335%Oct 28, 2026Yield to maturity5.427%Nov 3, 2026Yield to maturity5.371%Nov 9, 2026Yield to maturity5.316%

Price history

809 trading days to Nov 9, 2026

7580859095100105Aug 15, 2023Nov 9, 2026Aug 15, 2023Close96.719Aug 21, 2023Close94.625Aug 25, 2023Close97.125Aug 31, 2023Close98.750Sep 7, 2023Close96.125Sep 13, 2023Close96.469Sep 19, 2023Close94.969Sep 25, 2023Close91.375Sep 29, 2023Close90.406Oct 5, 2023Close88.094Oct 12, 2023Close88.500Oct 18, 2023Close86.656Oct 24, 2023Close87.219Oct 30, 2023Close86.063Nov 3, 2023Close89.906Nov 9, 2023Close89.688Nov 15, 2023Close90.938Nov 21, 2023Close92.500Nov 28, 2023Close93.281Dec 4, 2023Close94.750Dec 8, 2023Close96.625Dec 14, 2023Close101.188Dec 20, 2023Close102.031Dec 27, 2023Close102.688Jan 3, 2024Close100.938Jan 9, 2024Close98.750Jan 16, 2024Close96.719Jan 22, 2024Close96.500Jan 26, 2024Close95.531Feb 1, 2024Close100.094Feb 7, 2024Close96.656Feb 13, 2024Close94.219Feb 20, 2024Close94.500Feb 26, 2024Close95.125Mar 1, 2024Close96.281Mar 7, 2024Close97.625Mar 13, 2024Close96.063Mar 19, 2024Close94.563Mar 25, 2024Close94.875Apr 1, 2024Close94.219Apr 5, 2024Close93.063Apr 11, 2024Close91.438Apr 17, 2024Close90.656Apr 23, 2024Close90.313Apr 29, 2024Close90.031May 3, 2024Close91.344May 9, 2024Close92.125May 15, 2024Close93.500May 21, 2024Close92.906May 28, 2024Close91.344Jun 3, 2024Close92.938Jun 7, 2024Close93.000Jun 13, 2024Close95.281Jun 20, 2024Close95.469Jun 26, 2024Close94.563Jul 2, 2024Close92.188Jul 9, 2024Close93.906Jul 15, 2024Close94.375Jul 19, 2024Close94.500Jul 25, 2024Close93.688Jul 31, 2024Close95.969Aug 6, 2024Close98.781Aug 12, 2024Close98.469Aug 16, 2024Close99.156Aug 22, 2024Close99.500Aug 28, 2024Close99.531Sep 4, 2024Close100.719Sep 10, 2024Close102.375Sep 16, 2024Close102.844Sep 20, 2024Close100.563Sep 26, 2024Close99.656Oct 2, 2024Close99.375Oct 8, 2024Close96.438Oct 15, 2024Close96.625Oct 21, 2024Close93.938Oct 25, 2024Close93.500Oct 31, 2024Close94.219Nov 6, 2024Close91.938Nov 13, 2024Close91.500Nov 19, 2024Close92.344Nov 25, 2024Close94.219Dec 2, 2024Close95.656Dec 6, 2024Close96.063Dec 12, 2024Close92.688Dec 18, 2024Close91.219Dec 24, 2024Close89.500Dec 31, 2024Close89.219Jan 7, 2025Close87.531Jan 13, 2025Close86.750Jan 17, 2025Close88.531Jan 24, 2025Close88.438Jan 30, 2025Close89.688Feb 5, 2025Close91.469Feb 11, 2025Close89.813Feb 18, 2025Close89.406Feb 24, 2025Close91.125Feb 28, 2025Close93.188Mar 6, 2025Close92.031Mar 12, 2025Close91.344Mar 18, 2025Close92.188Mar 24, 2025Close90.969Mar 28, 2025Close91.313Apr 3, 2025Close93.563Apr 9, 2025Close90.188Apr 15, 2025Close89.250Apr 22, 2025Close87.875Apr 28, 2025Close90.594May 2, 2025Close89.188May 8, 2025Close88.438May 14, 2025Close86.594May 20, 2025Close86.719May 27, 2025Close87.063Jun 2, 2025Close86.406Jun 6, 2025Close86.688Jun 12, 2025Close88.469Jun 18, 2025Close87.875Jun 25, 2025Close88.656Jul 1, 2025Close89.500Jul 8, 2025Close87.156Jul 14, 2025Close86.813Jul 18, 2025Close86.438Jul 24, 2025Close87.031Jul 30, 2025Close87.875Aug 5, 2025Close89.625Aug 11, 2025Close88.656Aug 15, 2025Close87.500Aug 21, 2025Close87.563Aug 27, 2025Close87.656Sep 3, 2025Close87.938Sep 9, 2025Close90.594Sep 15, 2025Close91.375Sep 19, 2025Close90.094Sep 25, 2025Close90.031Oct 1, 2025Close90.531Oct 7, 2025Close90.375Oct 14, 2025Close92.000Oct 20, 2025Close92.625Oct 24, 2025Close92.406Oct 30, 2025Close91.500Nov 5, 2025Close90.219Nov 12, 2025Close91.219Nov 18, 2025Close90.094Nov 24, 2025Close91.000Dec 1, 2025Close90.125Dec 5, 2025Close89.438Dec 11, 2025Close89.438Dec 17, 2025Close88.875Dec 23, 2025Close88.906Dec 30, 2025Close89.188Jan 6, 2026Close88.438Jan 12, 2026Close88.781Jan 16, 2026Close88.875Jan 23, 2026Close88.969Jan 29, 2026Close88.656Feb 4, 2026Close87.750Feb 10, 2026Close89.594Feb 17, 2026Close91.000Feb 23, 2026Close90.750Feb 27, 2026Close91.719Mar 5, 2026Close90.125Mar 11, 2026Close88.469Mar 17, 2026Close88.594Mar 23, 2026Close87.531Mar 27, 2026Close86.688Apr 2, 2026Close88.063Apr 8, 2026Close88.063Apr 14, 2026Close88.313Apr 20, 2026Close88.188Apr 24, 2026Close87.813Apr 30, 2026Close86.719May 6, 2026Close87.344May 12, 2026Close86.125May 18, 2026Close84.656May 22, 2026Close85.531May 29, 2026Close86.625Jun 4, 2026Close86.781Jun 10, 2026Close86.094Jun 16, 2026Close87.500Jun 23, 2026Close87.250Jun 29, 2026Close88.375Jul 6, 2026Close86.594Jul 10, 2026Close85.563Jul 16, 2026Close85.281Jul 22, 2026Close84.469Jul 28, 2026Close85.219Aug 3, 2026Close83.469Aug 7, 2026Close83.906Aug 13, 2026Close83.719Aug 19, 2026Close83.969Aug 25, 2026Close84.344Aug 31, 2026Close83.344Sep 4, 2026Close83.406Sep 11, 2026Close82.000Sep 17, 2026Close82.875Sep 23, 2026Close81.406Sep 29, 2026Close79.063Oct 5, 2026Close78.250Oct 9, 2026Close79.000Oct 16, 2026Close81.156Oct 22, 2026Close82.844Oct 28, 2026Close81.719Nov 3, 2026Close82.406Nov 9, 2026Close83.094
The most recent 20 trading days of prices for 912810TT5.
DateBidOfferClose
Nov 9, 202683.09483.12583.094
Nov 6, 202683.21983.25083.156
Nov 5, 202683.21983.25083.281
Nov 4, 202682.59482.62582.875
Nov 3, 202682.56382.59482.406
Nov 2, 202683.25083.26682.844
Oct 30, 202682.40682.43882.438
Oct 29, 202682.43882.46982.406
Oct 28, 202682.31382.32881.719
Oct 27, 202682.59482.62582.625
Oct 26, 202682.56382.59482.531
Oct 23, 202682.46982.50082.344
Oct 22, 202682.31382.32882.844
Oct 21, 202681.31381.34481.188
Oct 20, 202681.15681.17281.156
Oct 19, 202680.71980.75080.469
Oct 16, 202681.31381.34481.156
Oct 15, 202681.15681.18881.094
Oct 14, 202679.43879.46979.969
Oct 13, 202679.46979.50079.500

Prices are per 100 of face, from Treasury's own end-of-day file. A dash means that side was not quoted that day, which is almost always the offer and almost always near maturity: a holder of a bill days from paying par has little reason to sell it.

3 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 912810TT5.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Aug 10, 2023Aug 15, 2023New issue$23.0bn$31.6bn2.42x4.189%
Sep 13, 2023Sep 15, 2023Reopening$20.0bn$20.0bn2.46x4.345%
Oct 12, 2023Oct 16, 2023Reopening$20.0bn$20.0bn2.35x4.837%

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.