Treasury bond

912810ST6 · 1.375% due November 15, 2040

Original term
20-Year
Maturity
Nov 15, 2040
Coupon
1.375%
Pays
Semi-Annual
Dated
Nov 15, 2020
First coupon
May 15, 2021
Priced through
Sep 9, 2026
Analyzed through
Sep 9, 2026

Statement of August 31, 2026

Amount outstanding
$83.26bn
Held stripped
$117.8m
Share stripped
0.14%

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
5.133%
Modified duration
12.094 yr
DV01
0.0761
Convexity
166.113
Dirty price
62.910

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 9 of twelve buckets, summing to 12.371 years against a modified duration of 12.094.

Against the fitted curve

Priced 1.4 bp rich to the curve on that day, 10.83 cents per 100 of face.

That is -1.93 standard deviations from its own typical residual.

Yield to maturity, 1,447 observations

1%2%3%4%5%6%Nov 30, 2020Sep 9, 2026Nov 30, 2020Yield to maturity1.366%Dec 9, 2020Yield to maturity1.478%Dec 18, 2020Yield to maturity1.488%Dec 30, 2020Yield to maturity1.457%Jan 11, 2021Yield to maturity1.680%Jan 21, 2021Yield to maturity1.676%Feb 1, 2021Yield to maturity1.654%Feb 10, 2021Yield to maturity1.741%Feb 22, 2021Yield to maturity2.025%Mar 3, 2021Yield to maturity2.134%Mar 12, 2021Yield to maturity2.326%Mar 23, 2021Yield to maturity2.251%Apr 1, 2021Yield to maturity2.256%Apr 12, 2021Yield to maturity2.251%Apr 21, 2021Yield to maturity2.156%Apr 30, 2021Yield to maturity2.195%May 11, 2021Yield to maturity2.235%May 20, 2021Yield to maturity2.264%Jun 1, 2021Yield to maturity2.235%Jun 10, 2021Yield to maturity2.080%Jun 21, 2021Yield to maturity2.056%Jun 30, 2021Yield to maturity2.004%Jul 12, 2021Yield to maturity1.931%Jul 21, 2021Yield to maturity1.864%Jul 30, 2021Yield to maturity1.812%Aug 10, 2021Yield to maturity1.900%Aug 19, 2021Yield to maturity1.781%Aug 30, 2021Yield to maturity1.812%Sep 9, 2021Yield to maturity1.815%Sep 20, 2021Yield to maturity1.781%Sep 29, 2021Yield to maturity2.035%Oct 8, 2021Yield to maturity2.106%Oct 20, 2021Yield to maturity2.102%Oct 29, 2021Yield to maturity1.985%Nov 9, 2021Yield to maturity1.863%Nov 19, 2021Yield to maturity1.957%Dec 1, 2021Yield to maturity1.858%Dec 10, 2021Yield to maturity1.921%Dec 21, 2021Yield to maturity1.923%Dec 31, 2021Yield to maturity1.943%Jan 11, 2022Yield to maturity2.140%Jan 21, 2022Yield to maturity2.139%Feb 1, 2022Yield to maturity2.195%Feb 10, 2022Yield to maturity2.388%Feb 22, 2022Yield to maturity2.333%Mar 3, 2022Yield to maturity2.337%Mar 14, 2022Yield to maturity2.574%Mar 23, 2022Yield to maturity2.654%Apr 1, 2022Yield to maturity2.611%Apr 12, 2022Yield to maturity3.018%Apr 22, 2022Yield to maturity3.167%May 3, 2022Yield to maturity3.238%May 12, 2022Yield to maturity3.246%May 23, 2022Yield to maturity3.294%Jun 2, 2022Yield to maturity3.332%Jun 13, 2022Yield to maturity3.728%Jun 23, 2022Yield to maturity3.499%Jul 5, 2022Yield to maturity3.332%Jul 14, 2022Yield to maturity3.384%Jul 25, 2022Yield to maturity3.326%Aug 3, 2022Yield to maturity3.236%Aug 12, 2022Yield to maturity3.409%Aug 23, 2022Yield to maturity3.572%Sep 1, 2022Yield to maturity3.714%Sep 13, 2022Yield to maturity3.840%Sep 22, 2022Yield to maturity4.048%Oct 3, 2022Yield to maturity4.102%Oct 13, 2022Yield to maturity4.354%Oct 24, 2022Yield to maturity4.699%Nov 2, 2022Yield to maturity4.496%Nov 14, 2022Yield to maturity4.324%Nov 23, 2022Yield to maturity4.049%Dec 5, 2022Yield to maturity3.901%Dec 14, 2022Yield to maturity3.777%Dec 23, 2022Yield to maturity4.044%Jan 5, 2023Yield to maturity3.988%Jan 17, 2023Yield to maturity3.824%Jan 26, 2023Yield to maturity3.769%Feb 6, 2023Yield to maturity3.846%Feb 15, 2023Yield to maturity4.012%Feb 27, 2023Yield to maturity4.140%Mar 8, 2023Yield to maturity4.134%Mar 17, 2023Yield to maturity3.762%Mar 28, 2023Yield to maturity3.902%Apr 6, 2023Yield to maturity3.666%Apr 17, 2023Yield to maturity3.928%Apr 26, 2023Yield to maturity3.808%May 5, 2023Yield to maturity3.861%May 16, 2023Yield to maturity3.976%May 25, 2023Yield to maturity4.200%Jun 6, 2023Yield to maturity4.021%Jun 15, 2023Yield to maturity4.024%Jun 27, 2023Yield to maturity4.022%Jul 7, 2023Yield to maturity4.279%Jul 18, 2023Yield to maturity4.084%Jul 27, 2023Yield to maturity4.267%Aug 7, 2023Yield to maturity4.429%Aug 16, 2023Yield to maturity4.560%Aug 25, 2023Yield to maturity4.513%Sep 6, 2023Yield to maturity4.566%Sep 15, 2023Yield to maturity4.609%Sep 26, 2023Yield to maturity4.901%Oct 5, 2023Yield to maturity5.120%Oct 17, 2023Yield to maturity5.199%Oct 26, 2023Yield to maturity5.243%Nov 6, 2023Yield to maturity5.030%Nov 15, 2023Yield to maturity4.885%Nov 27, 2023Yield to maturity4.752%Dec 6, 2023Yield to maturity4.433%Dec 15, 2023Yield to maturity4.201%Dec 27, 2023Yield to maturity4.087%Jan 8, 2024Yield to maturity4.310%Jan 18, 2024Yield to maturity4.486%Jan 29, 2024Yield to maturity4.415%Feb 7, 2024Yield to maturity4.422%Feb 16, 2024Yield to maturity4.591%Feb 28, 2024Yield to maturity4.550%Mar 8, 2024Yield to maturity4.357%Mar 19, 2024Yield to maturity4.552%Mar 28, 2024Yield to maturity4.430%Apr 8, 2024Yield to maturity4.639%Apr 17, 2024Yield to maturity4.814%Apr 26, 2024Yield to maturity4.875%May 7, 2024Yield to maturity4.675%May 16, 2024Yield to maturity4.600%May 28, 2024Yield to maturity4.743%Jun 6, 2024Yield to maturity4.472%Jun 17, 2024Yield to maturity4.467%Jun 27, 2024Yield to maturity4.506%Jul 9, 2024Yield to maturity4.561%Jul 18, 2024Yield to maturity4.477%Jul 29, 2024Yield to maturity4.458%Aug 7, 2024Yield to maturity4.295%Aug 16, 2024Yield to maturity4.222%Aug 27, 2024Yield to maturity4.182%Sep 6, 2024Yield to maturity4.063%Sep 17, 2024Yield to maturity3.975%Sep 26, 2024Yield to maturity4.137%Oct 7, 2024Yield to maturity4.339%Oct 17, 2024Yield to maturity4.410%Oct 28, 2024Yield to maturity4.585%Nov 6, 2024Yield to maturity4.691%Nov 18, 2024Yield to maturity4.686%Nov 27, 2024Yield to maturity4.507%Dec 9, 2024Yield to maturity4.452%Dec 18, 2024Yield to maturity4.757%Dec 30, 2024Yield to maturity4.834%Jan 9, 2025Yield to maturity4.980%Jan 21, 2025Yield to maturity4.849%Jan 30, 2025Yield to maturity4.787%Feb 10, 2025Yield to maturity4.725%Feb 20, 2025Yield to maturity4.760%Mar 3, 2025Yield to maturity4.435%Mar 12, 2025Yield to maturity4.623%Mar 21, 2025Yield to maturity4.549%Apr 1, 2025Yield to maturity4.467%Apr 10, 2025Yield to maturity4.862%Apr 21, 2025Yield to maturity4.910%Apr 30, 2025Yield to maturity4.619%May 9, 2025Yield to maturity4.815%May 20, 2025Yield to maturity4.946%May 30, 2025Yield to maturity4.887%Jun 10, 2025Yield to maturity4.899%Jun 20, 2025Yield to maturity4.837%Jul 1, 2025Yield to maturity4.729%Jul 11, 2025Yield to maturity4.902%Jul 22, 2025Yield to maturity4.819%Jul 31, 2025Yield to maturity4.786%Aug 11, 2025Yield to maturity4.716%Aug 20, 2025Yield to maturity4.766%Aug 29, 2025Yield to maturity4.758%Sep 10, 2025Yield to maturity4.528%Sep 19, 2025Yield to maturity4.604%Sep 30, 2025Yield to maturity4.594%Oct 9, 2025Yield to maturity4.602%Oct 21, 2025Yield to maturity4.418%Oct 30, 2025Yield to maturity4.524%Nov 10, 2025Yield to maturity4.578%Nov 20, 2025Yield to maturity4.572%Dec 2, 2025Yield to maturity4.586%Dec 11, 2025Yield to maturity4.647%Dec 22, 2025Yield to maturity4.683%Jan 2, 2026Yield to maturity4.682%Jan 13, 2026Yield to maturity4.638%Jan 23, 2026Yield to maturity4.667%Feb 3, 2026Yield to maturity4.737%Feb 12, 2026Yield to maturity4.557%Feb 24, 2026Yield to maturity4.511%Mar 5, 2026Yield to maturity4.587%Mar 16, 2026Yield to maturity4.714%Mar 25, 2026Yield to maturity4.792%Apr 3, 2026Yield to maturity4.806%Apr 14, 2026Yield to maturity4.719%Apr 23, 2026Yield to maturity4.786%May 4, 2026Yield to maturity4.901%May 13, 2026Yield to maturity4.903%May 22, 2026Yield to maturity4.966%Jun 3, 2026Yield to maturity4.876%Jun 12, 2026Yield to maturity4.859%Jun 24, 2026Yield to maturity4.748%Jul 6, 2026Yield to maturity4.860%Jul 15, 2026Yield to maturity4.940%Jul 24, 2026Yield to maturity5.064%Aug 4, 2026Yield to maturity5.045%Aug 13, 2026Yield to maturity5.063%Aug 24, 2026Yield to maturity5.066%Sep 2, 2026Yield to maturity5.125%Sep 9, 2026Yield to maturity5.133%

Price history

1,447 trading days to Sep 9, 2026

5060708090100110Nov 30, 2020Sep 9, 2026Nov 30, 2020Close100.156Dec 9, 2020Close98.219Dec 18, 2020Close98.063Dec 30, 2020Close98.594Jan 11, 2021Close94.875Jan 21, 2021Close94.938Feb 1, 2021Close95.313Feb 10, 2021Close93.906Feb 22, 2021Close89.469Mar 3, 2021Close87.844Mar 12, 2021Close85.063Mar 23, 2021Close86.156Apr 1, 2021Close86.094Apr 12, 2021Close86.188Apr 21, 2021Close87.594Apr 30, 2021Close87.031May 11, 2021Close86.469May 20, 2021Close86.063Jun 1, 2021Close86.500Jun 10, 2021Close88.781Jun 21, 2021Close89.156Jun 30, 2021Close89.938Jul 12, 2021Close91.063Jul 21, 2021Close92.094Jul 30, 2021Close92.906Aug 10, 2021Close91.563Aug 19, 2021Close93.406Aug 30, 2021Close92.938Sep 9, 2021Close92.906Sep 20, 2021Close93.438Sep 29, 2021Close89.594Oct 8, 2021Close88.563Oct 20, 2021Close88.625Oct 29, 2021Close90.375Nov 9, 2021Close92.219Nov 19, 2021Close90.813Dec 1, 2021Close92.313Dec 10, 2021Close91.375Dec 21, 2021Close91.344Dec 31, 2021Close91.063Jan 11, 2022Close88.188Jan 21, 2022Close88.219Feb 1, 2022Close87.438Feb 10, 2022Close84.750Feb 22, 2022Close85.531Mar 3, 2022Close85.500Mar 14, 2022Close82.313Mar 23, 2022Close81.281Apr 1, 2022Close81.875Apr 12, 2022Close76.750Apr 22, 2022Close75.000May 3, 2022Close74.188May 12, 2022Close74.125May 23, 2022Close73.594Jun 2, 2022Close73.188Jun 13, 2022Close68.844Jun 23, 2022Close71.375Jul 5, 2022Close73.281Jul 14, 2022Close72.719Jul 25, 2022Close73.406Aug 3, 2022Close74.469Aug 12, 2022Close72.531Aug 23, 2022Close70.750Sep 1, 2022Close69.250Sep 13, 2022Close67.969Sep 22, 2022Close65.875Oct 3, 2022Close65.375Oct 13, 2022Close62.969Oct 24, 2022Close59.844Nov 2, 2022Close61.719Nov 14, 2022Close63.375Nov 23, 2022Close66.094Dec 5, 2022Close67.625Dec 14, 2022Close68.938Dec 23, 2022Close66.250Jan 5, 2023Close66.844Jan 17, 2023Close68.563Jan 26, 2023Close69.156Feb 6, 2023Close68.406Feb 15, 2023Close66.750Feb 27, 2023Close65.531Mar 8, 2023Close65.625Mar 17, 2023Close69.406Mar 28, 2023Close68.000Apr 6, 2023Close70.469Apr 17, 2023Close67.813Apr 26, 2023Close69.063May 5, 2023Close68.563May 16, 2023Close67.438May 25, 2023Close65.281Jun 6, 2023Close67.063Jun 15, 2023Close67.063Jun 27, 2023Close67.125Jul 7, 2023Close64.688Jul 18, 2023Close66.594Jul 27, 2023Close64.875Aug 7, 2023Close63.406Aug 16, 2023Close62.250Aug 25, 2023Close62.719Sep 6, 2023Close62.281Sep 15, 2023Close61.938Sep 26, 2023Close59.438Oct 5, 2023Close57.656Oct 17, 2023Close57.063Oct 26, 2023Close56.750Nov 6, 2023Close58.531Nov 15, 2023Close59.781Nov 27, 2023Close60.969Dec 6, 2023Close63.844Dec 15, 2023Close66.031Dec 27, 2023Close67.156Jan 8, 2024Close65.094Jan 18, 2024Close63.531Jan 29, 2024Close64.219Feb 7, 2024Close64.188Feb 16, 2024Close62.719Feb 28, 2024Close63.125Mar 8, 2024Close64.906Mar 19, 2024Close63.188Mar 28, 2024Close64.313Apr 8, 2024Close62.500Apr 17, 2024Close61.031Apr 26, 2024Close60.563May 7, 2024Close62.313May 16, 2024Close63.000May 28, 2024Close61.813Jun 6, 2024Close64.219Jun 17, 2024Close64.313Jun 27, 2024Close64.000Jul 9, 2024Close63.563Jul 18, 2024Close64.344Jul 29, 2024Close64.563Aug 7, 2024Close66.063Aug 16, 2024Close66.781Aug 27, 2024Close67.188Sep 6, 2024Close68.344Sep 17, 2024Close69.219Sep 26, 2024Close67.719Oct 7, 2024Close65.906Oct 17, 2024Close65.313Oct 28, 2024Close63.813Nov 6, 2024Close62.938Nov 18, 2024Close63.031Nov 27, 2024Close64.625Dec 9, 2024Close65.156Dec 18, 2024Close62.563Dec 30, 2024Close61.969Jan 9, 2025Close60.813Jan 21, 2025Close61.938Jan 30, 2025Close62.500Feb 10, 2025Close63.063Feb 20, 2025Close62.813Mar 3, 2025Close65.656Mar 12, 2025Close64.063Mar 21, 2025Close64.750Apr 1, 2025Close65.500Apr 10, 2025Close62.188Apr 21, 2025Close61.844Apr 30, 2025Close64.313May 9, 2025Close62.719May 20, 2025Close61.688May 30, 2025Close62.219Jun 10, 2025Close62.156Jun 20, 2025Close62.719Jul 1, 2025Close63.656Jul 11, 2025Close62.281Jul 22, 2025Close63.000Jul 31, 2025Close63.313Aug 11, 2025Close63.938Aug 20, 2025Close63.563Aug 29, 2025Close63.688Sep 10, 2025Close65.656Sep 19, 2025Close65.063Sep 30, 2025Close65.188Oct 9, 2025Close65.156Oct 21, 2025Close66.781Oct 30, 2025Close65.906Nov 10, 2025Close65.500Nov 20, 2025Close65.594Dec 2, 2025Close65.531Dec 11, 2025Close65.063Dec 22, 2025Close64.813Jan 2, 2026Close64.875Jan 13, 2026Close65.281Jan 23, 2026Close65.094Feb 3, 2026Close64.563Feb 12, 2026Close66.094Feb 24, 2026Close66.531Mar 5, 2026Close65.938Mar 16, 2026Close64.938Mar 25, 2026Close64.344Apr 3, 2026Close64.281Apr 14, 2026Close65.031Apr 23, 2026Close64.531May 4, 2026Close63.656May 13, 2026Close63.688May 22, 2026Close63.250Jun 3, 2026Close64.000Jun 12, 2026Close64.188Jun 24, 2026Close65.125Jul 6, 2026Close64.281Jul 15, 2026Close63.688Jul 24, 2026Close62.781Aug 4, 2026Close62.969Aug 13, 2026Close62.875Aug 24, 2026Close62.906Sep 2, 2026Close62.500Sep 9, 2026Close62.469
The most recent 20 trading days of prices for 912810ST6.
DateBidOfferClose
Sep 9, 202662.34462.28162.469
Sep 8, 202662.79762.75062.656
Sep 4, 202662.82862.78162.719
Sep 3, 202662.90662.84462.719
Sep 2, 202662.53162.46962.500
Sep 1, 202662.75062.68862.469
Aug 31, 202662.68862.62562.719
Aug 28, 202663.25063.18862.969
Aug 27, 202663.37563.31363.188
Aug 26, 202663.34463.28163.281
Aug 25, 202663.40663.34463.406
Aug 24, 202663.09463.03162.906
Aug 21, 202662.68862.65662.594
Aug 20, 202662.82862.78162.906
Aug 19, 202663.06363.00063.125
Aug 18, 202662.32862.28162.344
Aug 17, 202662.42262.37562.219
Aug 14, 202662.54762.50062.500
Aug 13, 202662.89162.84462.875
Aug 12, 202662.67262.62562.500

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 912810ST6.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Nov 18, 2020Nov 30, 2020New issue$27.0bn$30.7bn2.27x1.422%
Dec 21, 2020Dec 31, 2020Reopening$24.0bn$27.7bn2.39x1.470%
Jan 20, 2021Feb 1, 2021Reopening$24.0bn$27.2bn2.28x1.657%

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.