Treasury bond

912810SP4 · 1.375% due August 15, 2050

Original term
30-Year
Maturity
Aug 15, 2050
Coupon
1.375%
Pays
Semi-Annual
Dated
Aug 15, 2020
First coupon
Feb 15, 2021
Priced through
Sep 9, 2026
Analyzed through
Sep 9, 2026

Statement of August 31, 2026

Amount outstanding
$89.02bn
Held stripped
$9.21bn
Share stripped
10.35%

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
5.386%
Modified duration
17.797 yr
DV01
0.0828
Convexity
388.090
Dirty price
46.503

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 11 of twelve buckets, summing to 18.068 years against a modified duration of 17.797.

Against the fitted curve

Priced 4.0 bp rich to the curve on that day, 32.92 cents per 100 of face.

That is -0.85 standard deviations from its own typical residual.

Yield to maturity, 1,518 observations

1%2%3%4%5%6%Aug 17, 2020Sep 9, 2026Aug 17, 2020Yield to maturity1.433%Aug 26, 2020Yield to maturity1.412%Sep 4, 2020Yield to maturity1.459%Sep 16, 2020Yield to maturity1.446%Sep 25, 2020Yield to maturity1.405%Oct 6, 2020Yield to maturity1.556%Oct 16, 2020Yield to maturity1.524%Oct 27, 2020Yield to maturity1.569%Nov 5, 2020Yield to maturity1.540%Nov 17, 2020Yield to maturity1.622%Nov 27, 2020Yield to maturity1.580%Dec 8, 2020Yield to maturity1.675%Dec 17, 2020Yield to maturity1.684%Dec 29, 2020Yield to maturity1.677%Jan 8, 2021Yield to maturity1.879%Jan 20, 2021Yield to maturity1.843%Jan 29, 2021Yield to maturity1.868%Feb 9, 2021Yield to maturity1.958%Feb 19, 2021Yield to maturity2.153%Mar 2, 2021Yield to maturity2.228%Mar 11, 2021Yield to maturity2.298%Mar 22, 2021Yield to maturity2.391%Mar 31, 2021Yield to maturity2.425%Apr 9, 2021Yield to maturity2.354%Apr 20, 2021Yield to maturity2.284%Apr 29, 2021Yield to maturity2.323%May 10, 2021Yield to maturity2.339%May 19, 2021Yield to maturity2.411%May 28, 2021Yield to maturity2.290%Jun 9, 2021Yield to maturity2.198%Jun 18, 2021Yield to maturity2.043%Jun 29, 2021Yield to maturity2.126%Jul 9, 2021Yield to maturity2.015%Jul 20, 2021Yield to maturity1.905%Jul 29, 2021Yield to maturity1.943%Aug 9, 2021Yield to maturity1.988%Aug 18, 2021Yield to maturity1.932%Aug 27, 2021Yield to maturity1.932%Sep 8, 2021Yield to maturity1.971%Sep 17, 2021Yield to maturity1.925%Sep 28, 2021Yield to maturity2.090%Oct 7, 2021Yield to maturity2.153%Oct 19, 2021Yield to maturity2.108%Oct 28, 2021Yield to maturity1.978%Nov 8, 2021Yield to maturity1.908%Nov 18, 2021Yield to maturity1.998%Nov 30, 2021Yield to maturity1.805%Dec 9, 2021Yield to maturity1.892%Dec 20, 2021Yield to maturity1.886%Dec 30, 2021Yield to maturity1.959%Jan 10, 2022Yield to maturity2.133%Jan 20, 2022Yield to maturity2.159%Jan 31, 2022Yield to maturity2.129%Feb 9, 2022Yield to maturity2.279%Feb 18, 2022Yield to maturity2.290%Mar 2, 2022Yield to maturity2.290%Mar 11, 2022Yield to maturity2.423%Mar 22, 2022Yield to maturity2.654%Mar 31, 2022Yield to maturity2.495%Apr 11, 2022Yield to maturity2.888%Apr 21, 2022Yield to maturity2.983%May 2, 2022Yield to maturity3.115%May 11, 2022Yield to maturity3.112%May 20, 2022Yield to maturity3.078%Jun 1, 2022Yield to maturity3.181%Jun 10, 2022Yield to maturity3.286%Jun 22, 2022Yield to maturity3.323%Jul 1, 2022Yield to maturity3.180%Jul 13, 2022Yield to maturity3.146%Jul 22, 2022Yield to maturity3.071%Aug 2, 2022Yield to maturity3.087%Aug 11, 2022Yield to maturity3.250%Aug 22, 2022Yield to maturity3.346%Aug 31, 2022Yield to maturity3.368%Sep 12, 2022Yield to maturity3.630%Sep 21, 2022Yield to maturity3.591%Sep 30, 2022Yield to maturity3.862%Oct 12, 2022Yield to maturity3.974%Oct 21, 2022Yield to maturity4.390%Nov 1, 2022Yield to maturity4.199%Nov 10, 2022Yield to maturity4.140%Nov 22, 2022Yield to maturity3.953%Dec 2, 2022Yield to maturity3.659%Dec 13, 2022Yield to maturity3.598%Dec 22, 2022Yield to maturity3.811%Jan 4, 2023Yield to maturity3.883%Jan 13, 2023Yield to maturity3.670%Jan 25, 2023Yield to maturity3.666%Feb 3, 2023Yield to maturity3.668%Feb 14, 2023Yield to maturity3.821%Feb 24, 2023Yield to maturity3.961%Mar 7, 2023Yield to maturity3.897%Mar 16, 2023Yield to maturity3.755%Mar 27, 2023Yield to maturity3.811%Apr 5, 2023Yield to maturity3.615%Apr 14, 2023Yield to maturity3.781%Apr 25, 2023Yield to maturity3.690%May 4, 2023Yield to maturity3.770%May 15, 2023Yield to maturity3.898%May 24, 2023Yield to maturity4.028%Jun 5, 2023Yield to maturity3.947%Jun 14, 2023Yield to maturity3.941%Jun 26, 2023Yield to maturity3.867%Jul 6, 2023Yield to maturity4.040%Jul 17, 2023Yield to maturity3.980%Jul 26, 2023Yield to maturity3.971%Aug 4, 2023Yield to maturity4.250%Aug 15, 2023Yield to maturity4.375%Aug 24, 2023Yield to maturity4.353%Sep 5, 2023Yield to maturity4.433%Sep 14, 2023Yield to maturity4.456%Sep 25, 2023Yield to maturity4.737%Oct 4, 2023Yield to maturity4.941%Oct 16, 2023Yield to maturity4.947%Oct 25, 2023Yield to maturity5.156%Nov 3, 2023Yield to maturity4.836%Nov 14, 2023Yield to maturity4.701%Nov 24, 2023Yield to maturity4.692%Dec 5, 2023Yield to maturity4.392%Dec 14, 2023Yield to maturity4.135%Dec 26, 2023Yield to maturity4.146%Jan 5, 2024Yield to maturity4.303%Jan 17, 2024Yield to maturity4.418%Jan 26, 2024Yield to maturity4.490%Feb 6, 2024Yield to maturity4.390%Feb 15, 2024Yield to maturity4.513%Feb 27, 2024Yield to maturity4.528%Mar 7, 2024Yield to maturity4.341%Mar 18, 2024Yield to maturity4.542%Mar 27, 2024Yield to maturity4.435%Apr 5, 2024Yield to maturity4.610%Apr 16, 2024Yield to maturity4.831%Apr 25, 2024Yield to maturity4.870%May 6, 2024Yield to maturity4.700%May 15, 2024Yield to maturity4.589%May 24, 2024Yield to maturity4.639%Jun 5, 2024Yield to maturity4.514%Jun 14, 2024Yield to maturity4.425%Jun 26, 2024Yield to maturity4.519%Jul 8, 2024Yield to maturity4.538%Jul 17, 2024Yield to maturity4.461%Jul 26, 2024Yield to maturity4.549%Aug 6, 2024Yield to maturity4.293%Aug 15, 2024Yield to maturity4.301%Aug 26, 2024Yield to maturity4.237%Sep 5, 2024Yield to maturity4.137%Sep 16, 2024Yield to maturity4.054%Sep 25, 2024Yield to maturity4.262%Oct 4, 2024Yield to maturity4.406%Oct 16, 2024Yield to maturity4.423%Oct 25, 2024Yield to maturity4.627%Nov 5, 2024Yield to maturity4.554%Nov 15, 2024Yield to maturity4.741%Nov 26, 2024Yield to maturity4.613%Dec 6, 2024Yield to maturity4.461%Dec 17, 2024Yield to maturity4.714%Dec 27, 2024Yield to maturity4.936%Jan 8, 2025Yield to maturity5.035%Jan 17, 2025Yield to maturity4.946%Jan 29, 2025Yield to maturity4.905%Feb 7, 2025Yield to maturity4.808%Feb 19, 2025Yield to maturity4.881%Feb 28, 2025Yield to maturity4.642%Mar 11, 2025Yield to maturity4.732%Mar 20, 2025Yield to maturity4.679%Mar 31, 2025Yield to maturity4.715%Apr 9, 2025Yield to maturity4.865%Apr 18, 2025Yield to maturity4.950%Apr 29, 2025Yield to maturity4.775%May 8, 2025Yield to maturity4.976%May 19, 2025Yield to maturity5.055%May 29, 2025Yield to maturity5.055%Jun 9, 2025Yield to maturity5.090%Jun 18, 2025Yield to maturity5.017%Jun 30, 2025Yield to maturity4.900%Jul 10, 2025Yield to maturity4.982%Jul 21, 2025Yield to maturity5.055%Jul 30, 2025Yield to maturity5.009%Aug 8, 2025Yield to maturity4.964%Aug 19, 2025Yield to maturity5.012%Aug 28, 2025Yield to maturity4.994%Sep 9, 2025Yield to maturity4.822%Sep 18, 2025Yield to maturity4.831%Sep 29, 2025Yield to maturity4.811%Oct 8, 2025Yield to maturity4.827%Oct 20, 2025Yield to maturity4.680%Oct 29, 2025Yield to maturity4.708%Nov 7, 2025Yield to maturity4.803%Nov 19, 2025Yield to maturity4.866%Dec 1, 2025Yield to maturity4.860%Dec 10, 2025Yield to maturity4.907%Dec 19, 2025Yield to maturity4.954%Dec 31, 2025Yield to maturity4.972%Jan 12, 2026Yield to maturity4.954%Jan 22, 2026Yield to maturity4.958%Feb 2, 2026Yield to maturity5.020%Feb 11, 2026Yield to maturity4.933%Feb 23, 2026Yield to maturity4.819%Mar 4, 2026Yield to maturity4.839%Mar 13, 2026Yield to maturity5.033%Mar 24, 2026Yield to maturity5.075%Apr 2, 2026Yield to maturity5.015%Apr 13, 2026Yield to maturity5.025%Apr 22, 2026Yield to maturity5.021%May 1, 2026Yield to maturity5.095%May 12, 2026Yield to maturity5.152%May 21, 2026Yield to maturity5.220%Jun 2, 2026Yield to maturity5.088%Jun 11, 2026Yield to maturity5.073%Jun 23, 2026Yield to maturity5.060%Jul 2, 2026Yield to maturity5.106%Jul 14, 2026Yield to maturity5.203%Jul 23, 2026Yield to maturity5.294%Aug 3, 2026Yield to maturity5.354%Aug 12, 2026Yield to maturity5.372%Aug 21, 2026Yield to maturity5.383%Sep 1, 2026Yield to maturity5.379%Sep 9, 2026Yield to maturity5.386%

Price history

1,518 trading days to Sep 9, 2026

405060708090100110Aug 17, 2020Sep 9, 2026Aug 17, 2020Close98.594Aug 26, 2020Close99.094Sep 4, 2020Close97.969Sep 16, 2020Close98.281Sep 25, 2020Close99.281Oct 6, 2020Close95.688Oct 16, 2020Close96.438Oct 27, 2020Close95.406Nov 5, 2020Close96.063Nov 17, 2020Close94.188Nov 27, 2020Close95.156Dec 8, 2020Close93.000Dec 17, 2020Close92.813Dec 29, 2020Close92.969Jan 8, 2021Close88.594Jan 20, 2021Close89.375Jan 29, 2021Close88.844Feb 9, 2021Close86.969Feb 19, 2021Close83.094Mar 2, 2021Close81.656Mar 11, 2021Close80.344Mar 22, 2021Close78.625Mar 31, 2021Close78.031Apr 9, 2021Close79.344Apr 20, 2021Close80.656Apr 29, 2021Close79.938May 10, 2021Close79.656May 19, 2021Close78.344May 28, 2021Close80.594Jun 9, 2021Close82.344Jun 18, 2021Close85.375Jun 29, 2021Close83.750Jul 9, 2021Close85.969Jul 20, 2021Close88.219Jul 29, 2021Close87.438Aug 9, 2021Close86.531Aug 18, 2021Close87.688Aug 27, 2021Close87.688Sep 8, 2021Close86.906Sep 17, 2021Close87.844Sep 28, 2021Close84.563Oct 7, 2021Close83.344Oct 19, 2021Close84.219Oct 28, 2021Close86.813Nov 8, 2021Close88.250Nov 18, 2021Close86.438Nov 30, 2021Close90.406Dec 9, 2021Close88.594Dec 20, 2021Close88.719Dec 30, 2021Close87.250Jan 10, 2022Close83.844Jan 20, 2022Close83.344Jan 31, 2022Close83.938Feb 9, 2022Close81.125Feb 18, 2022Close80.938Mar 2, 2022Close80.938Mar 11, 2022Close78.563Mar 22, 2022Close74.594Mar 31, 2022Close77.313Apr 11, 2022Close70.844Apr 21, 2022Close69.406May 2, 2022Close67.438May 11, 2022Close67.500May 20, 2022Close68.031Jun 1, 2022Close66.531Jun 10, 2022Close65.063Jun 22, 2022Close64.563Jul 1, 2022Close66.625Jul 13, 2022Close67.125Jul 22, 2022Close68.250Aug 2, 2022Close68.031Aug 11, 2022Close65.688Aug 22, 2022Close64.375Aug 31, 2022Close64.094Sep 12, 2022Close60.625Sep 21, 2022Close61.156Sep 30, 2022Close57.781Oct 12, 2022Close56.469Oct 21, 2022Close51.844Nov 1, 2022Close53.938Nov 10, 2022Close54.625Nov 22, 2022Close56.813Dec 2, 2022Close60.438Dec 13, 2022Close61.250Dec 22, 2022Close58.594Jan 4, 2023Close57.750Jan 13, 2023Close60.406Jan 25, 2023Close60.469Feb 3, 2023Close60.469Feb 14, 2023Close58.594Feb 24, 2023Close56.938Mar 7, 2023Close57.719Mar 16, 2023Close59.469Mar 27, 2023Close58.813Apr 5, 2023Close61.281Apr 14, 2023Close59.219Apr 25, 2023Close60.375May 4, 2023Close59.406May 15, 2023Close57.875May 24, 2023Close56.375Jun 5, 2023Close57.344Jun 14, 2023Close57.438Jun 26, 2023Close58.344Jul 6, 2023Close56.344Jul 17, 2023Close57.063Jul 26, 2023Close57.188Aug 4, 2023Close54.063Aug 15, 2023Close52.750Aug 24, 2023Close53.000Sep 5, 2023Close52.188Sep 14, 2023Close51.969Sep 25, 2023Close49.188Oct 4, 2023Close47.281Oct 16, 2023Close47.250Oct 25, 2023Close45.406Nov 3, 2023Close48.344Nov 14, 2023Close49.656Nov 24, 2023Close49.781Dec 5, 2023Close52.844Dec 14, 2023Close55.656Dec 26, 2023Close55.563Jan 5, 2024Close53.875Jan 17, 2024Close52.688Jan 26, 2024Close51.969Feb 6, 2024Close53.031Feb 15, 2024Close51.781Feb 27, 2024Close51.656Mar 7, 2024Close53.625Mar 18, 2024Close51.563Mar 27, 2024Close52.688Apr 5, 2024Close50.938Apr 16, 2024Close48.813Apr 25, 2024Close48.469May 6, 2024Close50.125May 15, 2024Close51.250May 24, 2024Close50.781Jun 5, 2024Close52.063Jun 14, 2024Close53.000Jun 26, 2024Close52.063Jul 8, 2024Close51.906Jul 17, 2024Close52.719Jul 26, 2024Close51.844Aug 6, 2024Close54.531Aug 15, 2024Close54.469Aug 26, 2024Close55.188Sep 5, 2024Close56.313Sep 16, 2024Close57.281Sep 25, 2024Close55.000Oct 4, 2024Close53.500Oct 16, 2024Close53.344Oct 25, 2024Close51.313Nov 5, 2024Close52.063Nov 15, 2024Close50.250Nov 26, 2024Close51.531Dec 6, 2024Close53.094Dec 17, 2024Close50.594Dec 27, 2024Close48.531Jan 8, 2025Close47.656Jan 17, 2025Close48.500Jan 29, 2025Close48.906Feb 7, 2025Close49.844Feb 19, 2025Close49.188Feb 28, 2025Close51.500Mar 11, 2025Close50.656Mar 20, 2025Close51.188Mar 31, 2025Close50.875Apr 9, 2025Close49.469Apr 18, 2025Close48.719Apr 29, 2025Close50.375May 8, 2025Close48.531May 19, 2025Close47.844May 29, 2025Close47.875Jun 9, 2025Close47.594Jun 18, 2025Close48.281Jun 30, 2025Close49.375Jul 10, 2025Close48.656Jul 21, 2025Close48.031Jul 30, 2025Close48.469Aug 8, 2025Close48.906Aug 19, 2025Close48.500Aug 28, 2025Close48.688Sep 9, 2025Close50.313Sep 18, 2025Close50.250Sep 29, 2025Close50.469Oct 8, 2025Close50.344Oct 20, 2025Close51.781Oct 29, 2025Close51.531Nov 7, 2025Close50.656Nov 19, 2025Close50.094Dec 1, 2025Close50.188Dec 10, 2025Close49.781Dec 19, 2025Close49.375Dec 31, 2025Close49.250Jan 12, 2026Close49.438Jan 22, 2026Close49.438Feb 2, 2026Close48.906Feb 11, 2026Close49.719Feb 23, 2026Close50.813Mar 4, 2026Close50.656Mar 13, 2026Close48.906Mar 24, 2026Close48.563Apr 2, 2026Close49.125Apr 13, 2026Close49.063Apr 22, 2026Close49.125May 1, 2026Close48.500May 12, 2026Close48.031May 21, 2026Close47.469Jun 2, 2026Close48.656Jun 11, 2026Close48.813Jun 23, 2026Close48.969Jul 2, 2026Close48.594Jul 14, 2026Close47.781Jul 23, 2026Close47.031Aug 3, 2026Close46.563Aug 12, 2026Close46.438Aug 21, 2026Close46.375Sep 1, 2026Close46.438Sep 9, 2026Close46.406
The most recent 20 trading days of prices for 912810SP4.
DateBidOfferClose
Sep 9, 202646.26646.21946.406
Sep 8, 202646.71946.68846.625
Sep 4, 202646.71946.68846.688
Sep 3, 202646.78146.75046.625
Sep 2, 202646.43846.40646.438
Sep 1, 202646.65646.62546.438
Aug 31, 202646.53146.50046.625
Aug 28, 202647.21947.18846.875
Aug 27, 202647.25047.21947.094
Aug 26, 202647.21947.18847.188
Aug 25, 202647.25047.21947.281
Aug 24, 202646.90646.87546.781
Aug 21, 202646.43846.40646.375
Aug 20, 202646.53146.50046.688
Aug 19, 202646.89146.84446.938
Aug 18, 202646.01646.00046.125
Aug 17, 202646.14146.12545.906
Aug 14, 202646.31346.28146.344
Aug 13, 202646.75046.71946.719
Aug 12, 202646.59446.56346.438

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 912810SP4.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Aug 13, 2020Aug 17, 2020New issue$26.0bn$41.5bn2.14x1.406%
Sep 10, 2020Sep 15, 2020Reopening$23.0bn$23.9bn2.31x1.473%
Oct 8, 2020Oct 15, 2020Reopening$23.0bn$23.6bn2.29x1.578%

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.