Treasury bond

912810TK4 · 3.375% due August 15, 2042

Original term
20-Year
Maturity
Aug 15, 2042
Coupon
3.375%
Pays
Semi-Annual
Dated
Aug 15, 2022
First coupon
Feb 15, 2023
Priced through
Sep 9, 2026
Analyzed through
Sep 9, 2026

Statement of August 31, 2026

Amount outstanding
$39.64bn
Held stripped
$118.0m
Share stripped
0.30%

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, September 9, 2026

Yield to maturity
5.205%
Modified duration
11.628 yr
DV01
0.0937
Convexity
168.111
Dirty price
80.582

Where its rate sensitivity sits

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 10 of twelve buckets, summing to 11.853 years against a modified duration of 11.628.

Against the fitted curve

Priced 1.6 bp cheap to the curve on that day, 15.46 cents per 100 of face.

That is -1.05 standard deviations from its own typical residual.

Yield to maturity, 1,007 observations

3.50%4.00%4.50%5.00%5.50%Aug 31, 2022Sep 9, 2026Aug 31, 2022Yield to maturity3.533%Sep 8, 2022Yield to maturity3.696%Sep 15, 2022Yield to maturity3.754%Sep 22, 2022Yield to maturity3.912%Sep 29, 2022Yield to maturity4.004%Oct 6, 2022Yield to maturity4.085%Oct 14, 2022Yield to maturity4.271%Oct 21, 2022Yield to maturity4.565%Oct 28, 2022Yield to maturity4.396%Nov 4, 2022Yield to maturity4.505%Nov 14, 2022Yield to maturity4.291%Nov 21, 2022Yield to maturity4.173%Nov 29, 2022Yield to maturity4.054%Dec 6, 2022Yield to maturity3.804%Dec 13, 2022Yield to maturity3.776%Dec 20, 2022Yield to maturity3.974%Dec 28, 2022Yield to maturity4.168%Jan 5, 2023Yield to maturity3.980%Jan 12, 2023Yield to maturity3.746%Jan 20, 2023Yield to maturity3.792%Jan 27, 2023Yield to maturity3.782%Feb 3, 2023Yield to maturity3.787%Feb 10, 2023Yield to maturity3.978%Feb 17, 2023Yield to maturity4.047%Feb 27, 2023Yield to maturity4.137%Mar 6, 2023Yield to maturity4.173%Mar 13, 2023Yield to maturity3.877%Mar 20, 2023Yield to maturity3.849%Mar 27, 2023Yield to maturity3.914%Apr 3, 2023Yield to maturity3.787%Apr 10, 2023Yield to maturity3.754%Apr 17, 2023Yield to maturity3.935%Apr 24, 2023Yield to maturity3.867%May 1, 2023Yield to maturity3.950%May 8, 2023Yield to maturity3.929%May 15, 2023Yield to maturity3.931%May 22, 2023Yield to maturity4.111%May 30, 2023Yield to maturity4.079%Jun 6, 2023Yield to maturity4.042%Jun 13, 2023Yield to maturity4.138%Jun 21, 2023Yield to maturity4.015%Jun 28, 2023Yield to maturity4.016%Jul 6, 2023Yield to maturity4.263%Jul 13, 2023Yield to maturity4.089%Jul 20, 2023Yield to maturity4.128%Jul 27, 2023Yield to maturity4.281%Aug 3, 2023Yield to maturity4.505%Aug 10, 2023Yield to maturity4.425%Aug 17, 2023Yield to maturity4.597%Aug 24, 2023Yield to maturity4.519%Aug 31, 2023Yield to maturity4.406%Sep 8, 2023Yield to maturity4.551%Sep 15, 2023Yield to maturity4.620%Sep 22, 2023Yield to maturity4.731%Sep 29, 2023Yield to maturity4.954%Oct 6, 2023Yield to maturity5.168%Oct 16, 2023Yield to maturity5.102%Oct 23, 2023Yield to maturity5.229%Oct 30, 2023Yield to maturity5.258%Nov 6, 2023Yield to maturity5.034%Nov 13, 2023Yield to maturity4.984%Nov 20, 2023Yield to maturity4.793%Nov 28, 2023Yield to maturity4.754%Dec 5, 2023Yield to maturity4.533%Dec 12, 2023Yield to maturity4.523%Dec 19, 2023Yield to maturity4.260%Dec 27, 2023Yield to maturity4.127%Jan 4, 2024Yield to maturity4.314%Jan 11, 2024Yield to maturity4.342%Jan 19, 2024Yield to maturity4.503%Jan 26, 2024Yield to maturity4.512%Feb 2, 2024Yield to maturity4.355%Feb 9, 2024Yield to maturity4.511%Feb 16, 2024Yield to maturity4.607%Feb 26, 2024Yield to maturity4.580%Mar 4, 2024Yield to maturity4.528%Mar 11, 2024Yield to maturity4.394%Mar 18, 2024Yield to maturity4.616%Mar 25, 2024Yield to maturity4.538%Apr 1, 2024Yield to maturity4.595%Apr 8, 2024Yield to maturity4.675%Apr 15, 2024Yield to maturity4.876%Apr 22, 2024Yield to maturity4.863%Apr 29, 2024Yield to maturity4.873%May 6, 2024Yield to maturity4.742%May 13, 2024Yield to maturity4.738%May 20, 2024Yield to maturity4.687%May 28, 2024Yield to maturity4.777%Jun 4, 2024Yield to maturity4.581%Jun 11, 2024Yield to maturity4.647%Jun 18, 2024Yield to maturity4.479%Jun 26, 2024Yield to maturity4.575%Jul 3, 2024Yield to maturity4.653%Jul 11, 2024Yield to maturity4.507%Jul 18, 2024Yield to maturity4.522%Jul 25, 2024Yield to maturity4.596%Aug 1, 2024Yield to maturity4.333%Aug 8, 2024Yield to maturity4.372%Aug 15, 2024Yield to maturity4.275%Aug 22, 2024Yield to maturity4.227%Aug 29, 2024Yield to maturity4.247%Sep 6, 2024Yield to maturity4.098%Sep 13, 2024Yield to maturity4.039%Sep 20, 2024Yield to maturity4.105%Sep 27, 2024Yield to maturity4.118%Oct 4, 2024Yield to maturity4.310%Oct 11, 2024Yield to maturity4.426%Oct 21, 2024Yield to maturity4.534%Oct 28, 2024Yield to maturity4.606%Nov 4, 2024Yield to maturity4.595%Nov 12, 2024Yield to maturity4.700%Nov 19, 2024Yield to maturity4.661%Nov 26, 2024Yield to maturity4.570%Dec 4, 2024Yield to maturity4.438%Dec 11, 2024Yield to maturity4.546%Dec 18, 2024Yield to maturity4.761%Dec 26, 2024Yield to maturity4.849%Jan 3, 2025Yield to maturity4.878%Jan 10, 2025Yield to maturity5.047%Jan 17, 2025Yield to maturity4.914%Jan 27, 2025Yield to maturity4.813%Feb 3, 2025Yield to maturity4.808%Feb 10, 2025Yield to maturity4.744%Feb 18, 2025Yield to maturity4.807%Feb 25, 2025Yield to maturity4.582%Mar 4, 2025Yield to maturity4.548%Mar 11, 2025Yield to maturity4.619%Mar 18, 2025Yield to maturity4.599%Mar 25, 2025Yield to maturity4.653%Apr 1, 2025Yield to maturity4.518%Apr 8, 2025Yield to maturity4.734%Apr 15, 2025Yield to maturity4.804%Apr 22, 2025Yield to maturity4.899%Apr 29, 2025Yield to maturity4.634%May 6, 2025Yield to maturity4.813%May 13, 2025Yield to maturity4.961%May 20, 2025Yield to maturity4.978%May 28, 2025Yield to maturity4.985%Jun 4, 2025Yield to maturity4.876%Jun 11, 2025Yield to maturity4.908%Jun 18, 2025Yield to maturity4.876%Jun 26, 2025Yield to maturity4.786%Jul 3, 2025Yield to maturity4.848%Jul 11, 2025Yield to maturity4.945%Jul 18, 2025Yield to maturity4.968%Jul 25, 2025Yield to maturity4.889%Aug 1, 2025Yield to maturity4.744%Aug 8, 2025Yield to maturity4.794%Aug 15, 2025Yield to maturity4.868%Aug 22, 2025Yield to maturity4.808%Aug 29, 2025Yield to maturity4.818%Sep 8, 2025Yield to maturity4.598%Sep 15, 2025Yield to maturity4.578%Sep 22, 2025Yield to maturity4.683%Sep 29, 2025Yield to maturity4.636%Oct 6, 2025Yield to maturity4.685%Oct 14, 2025Yield to maturity4.532%Oct 21, 2025Yield to maturity4.460%Oct 28, 2025Yield to maturity4.467%Nov 4, 2025Yield to maturity4.585%Nov 12, 2025Yield to maturity4.575%Nov 19, 2025Yield to maturity4.653%Nov 26, 2025Yield to maturity4.535%Dec 4, 2025Yield to maturity4.667%Dec 11, 2025Yield to maturity4.698%Dec 18, 2025Yield to maturity4.696%Dec 26, 2025Yield to maturity4.707%Jan 5, 2026Yield to maturity4.715%Jan 12, 2026Yield to maturity4.701%Jan 20, 2026Yield to maturity4.797%Jan 27, 2026Yield to maturity4.718%Feb 3, 2026Yield to maturity4.778%Feb 10, 2026Yield to maturity4.648%Feb 18, 2026Yield to maturity4.580%Feb 25, 2026Yield to maturity4.554%Mar 4, 2026Yield to maturity4.588%Mar 11, 2026Yield to maturity4.750%Mar 18, 2026Yield to maturity4.791%Mar 25, 2026Yield to maturity4.845%Apr 1, 2026Yield to maturity4.846%Apr 8, 2026Yield to maturity4.801%Apr 15, 2026Yield to maturity4.793%Apr 22, 2026Yield to maturity4.806%Apr 29, 2026Yield to maturity4.908%May 6, 2026Yield to maturity4.843%May 13, 2026Yield to maturity4.952%May 20, 2026Yield to maturity5.046%May 28, 2026Yield to maturity4.904%Jun 4, 2026Yield to maturity4.905%Jun 11, 2026Yield to maturity4.884%Jun 18, 2026Yield to maturity4.848%Jun 26, 2026Yield to maturity4.790%Jul 6, 2026Yield to maturity4.918%Jul 13, 2026Yield to maturity5.051%Jul 20, 2026Yield to maturity5.046%Jul 27, 2026Yield to maturity5.090%Aug 3, 2026Yield to maturity5.170%Aug 10, 2026Yield to maturity5.189%Aug 17, 2026Yield to maturity5.227%Aug 24, 2026Yield to maturity5.136%Aug 31, 2026Yield to maturity5.167%Sep 8, 2026Yield to maturity5.182%Sep 9, 2026Yield to maturity5.205%

Price history

1,007 trading days to Sep 9, 2026

7580859095100Aug 31, 2022Sep 9, 2026Aug 31, 2022Close97.750Sep 8, 2022Close95.500Sep 15, 2022Close94.719Sep 22, 2022Close92.625Sep 29, 2022Close91.438Oct 6, 2022Close90.406Oct 14, 2022Close88.094Oct 21, 2022Close84.594Oct 28, 2022Close86.594Nov 4, 2022Close85.313Nov 14, 2022Close87.875Nov 21, 2022Close89.344Nov 29, 2022Close90.844Dec 6, 2022Close94.094Dec 13, 2022Close94.469Dec 20, 2022Close91.875Dec 28, 2022Close89.438Jan 5, 2023Close91.813Jan 12, 2023Close94.875Jan 20, 2023Close94.281Jan 27, 2023Close94.406Feb 3, 2023Close94.344Feb 10, 2023Close91.875Feb 17, 2023Close91.000Feb 27, 2023Close89.875Mar 6, 2023Close89.438Mar 13, 2023Close93.188Mar 20, 2023Close93.563Mar 27, 2023Close92.719Apr 3, 2023Close94.375Apr 10, 2023Close94.813Apr 17, 2023Close92.469Apr 24, 2023Close93.344May 1, 2023Close92.281May 8, 2023Close92.563May 15, 2023Close92.531May 22, 2023Close90.281May 30, 2023Close90.688Jun 6, 2023Close91.156Jun 13, 2023Close89.969Jun 21, 2023Close91.500Jun 28, 2023Close91.500Jul 6, 2023Close88.469Jul 13, 2023Close90.594Jul 20, 2023Close90.125Jul 27, 2023Close88.281Aug 3, 2023Close85.656Aug 10, 2023Close86.594Aug 17, 2023Close84.625Aug 24, 2023Close85.531Aug 31, 2023Close86.844Sep 8, 2023Close85.188Sep 15, 2023Close84.406Sep 22, 2023Close83.188Sep 29, 2023Close80.781Oct 6, 2023Close78.563Oct 16, 2023Close79.250Oct 23, 2023Close77.969Oct 30, 2023Close77.688Nov 6, 2023Close80.000Nov 13, 2023Close80.531Nov 20, 2023Close82.594Nov 28, 2023Close83.031Dec 5, 2023Close85.500Dec 12, 2023Close85.625Dec 19, 2023Close88.688Dec 27, 2023Close90.281Jan 4, 2024Close88.063Jan 11, 2024Close87.750Jan 19, 2024Close85.906Jan 26, 2024Close85.813Feb 2, 2024Close87.625Feb 9, 2024Close85.844Feb 16, 2024Close84.781Feb 26, 2024Close85.094Mar 4, 2024Close85.688Mar 11, 2024Close87.219Mar 18, 2024Close84.719Mar 25, 2024Close85.594Apr 1, 2024Close84.969Apr 8, 2024Close84.094Apr 15, 2024Close81.938Apr 22, 2024Close82.094Apr 29, 2024Close82.000May 6, 2024Close83.406May 13, 2024Close83.469May 20, 2024Close84.031May 28, 2024Close83.063Jun 4, 2024Close85.219Jun 11, 2024Close84.500Jun 18, 2024Close86.375Jun 26, 2024Close85.313Jul 3, 2024Close84.469Jul 11, 2024Close86.094Jul 18, 2024Close85.938Jul 25, 2024Close85.125Aug 1, 2024Close88.094Aug 8, 2024Close87.656Aug 15, 2024Close88.781Aug 22, 2024Close89.344Aug 29, 2024Close89.125Sep 6, 2024Close90.875Sep 13, 2024Close91.594Sep 20, 2024Close90.813Sep 27, 2024Close90.656Oct 4, 2024Close88.438Oct 11, 2024Close87.125Oct 21, 2024Close85.938Oct 28, 2024Close85.156Nov 4, 2024Close85.281Nov 12, 2024Close84.156Nov 19, 2024Close84.594Nov 26, 2024Close85.594Dec 4, 2024Close87.063Dec 11, 2024Close85.875Dec 18, 2024Close83.563Dec 26, 2024Close82.656Jan 3, 2025Close82.375Jan 10, 2025Close80.656Jan 17, 2025Close82.031Jan 27, 2025Close83.094Feb 3, 2025Close83.156Feb 10, 2025Close83.844Feb 18, 2025Close83.188Feb 25, 2025Close85.594Mar 4, 2025Close85.969Mar 11, 2025Close85.219Mar 18, 2025Close85.438Mar 25, 2025Close84.875Apr 1, 2025Close86.344Apr 8, 2025Close84.031Apr 15, 2025Close83.313Apr 22, 2025Close82.344Apr 29, 2025Close85.125May 6, 2025Close83.250May 13, 2025Close81.750May 20, 2025Close81.594May 28, 2025Close81.531Jun 4, 2025Close82.656Jun 11, 2025Close82.344Jun 18, 2025Close82.688Jun 26, 2025Close83.625Jul 3, 2025Close83.000Jul 11, 2025Close82.031Jul 18, 2025Close81.813Jul 25, 2025Close82.625Aug 1, 2025Close84.125Aug 8, 2025Close83.625Aug 15, 2025Close82.875Aug 22, 2025Close83.500Aug 29, 2025Close83.406Sep 8, 2025Close85.719Sep 15, 2025Close85.938Sep 22, 2025Close84.844Sep 29, 2025Close85.344Oct 6, 2025Close84.844Oct 14, 2025Close86.469Oct 21, 2025Close87.250Oct 28, 2025Close87.188Nov 4, 2025Close85.938Nov 12, 2025Close86.063Nov 19, 2025Close85.250Nov 26, 2025Close86.500Dec 4, 2025Close85.125Dec 11, 2025Close84.813Dec 18, 2025Close84.844Dec 26, 2025Close84.750Jan 5, 2026Close84.688Jan 12, 2026Close84.844Jan 20, 2026Close83.875Jan 27, 2026Close84.688Feb 3, 2026Close84.094Feb 10, 2026Close85.438Feb 18, 2026Close86.156Feb 25, 2026Close86.438Mar 4, 2026Close86.094Mar 11, 2026Close84.438Mar 18, 2026Close84.031Mar 25, 2026Close83.500Apr 1, 2026Close83.500Apr 8, 2026Close83.969Apr 15, 2026Close84.063Apr 22, 2026Close83.938Apr 29, 2026Close82.938May 6, 2026Close83.594May 13, 2026Close82.531May 20, 2026Close81.625May 28, 2026Close83.031Jun 4, 2026Close83.031Jun 11, 2026Close83.250Jun 18, 2026Close83.625Jun 26, 2026Close84.219Jul 6, 2026Close82.969Jul 13, 2026Close81.688Jul 20, 2026Close81.750Jul 27, 2026Close81.344Aug 3, 2026Close80.594Aug 10, 2026Close80.438Aug 17, 2026Close80.094Aug 24, 2026Close80.969Aug 31, 2026Close80.688Sep 8, 2026Close80.563Sep 9, 2026Close80.344
The most recent 20 trading days of prices for 912810TK4.
DateBidOfferClose
Sep 9, 202680.17280.12580.344
Sep 8, 202680.73480.68880.563
Sep 4, 202680.76680.71980.688
Sep 3, 202680.87580.84480.688
Sep 2, 202680.42280.37580.406
Sep 1, 202680.68880.65680.406
Aug 31, 202680.59480.56380.688
Aug 28, 202681.26681.21980.969
Aug 27, 202681.43881.40681.250
Aug 26, 202681.43881.40681.375
Aug 25, 202681.50081.46981.531
Aug 24, 202681.12581.09480.969
Aug 21, 202680.65680.62580.531
Aug 20, 202680.82880.78180.969
Aug 19, 202681.18881.15681.313
Aug 18, 202680.25080.21980.344
Aug 17, 202680.37580.34480.094
Aug 14, 202680.53180.50080.531
Aug 13, 202681.01680.96981.000
Aug 12, 202680.75080.71980.594

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.

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 912810TK4.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Aug 17, 2022Aug 31, 2022New issue$15.0bn$17.0bn2.30x3.380%
Sep 20, 2022Sep 30, 2022Reopening$12.0bn$12.0bn2.65x3.820%
Oct 19, 2022Oct 31, 2022Reopening$12.0bn$12.0bn2.50x4.395%

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.

Free to benchmark against. Paid only to track. Measuring anything against these curves and indices is free. No license, no fee, no registration, and no permission needed to say that you did, including in a prospectus. A fee applies to one thing: launching a product that tracks an index.

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.