Treasury bond

912810SX7 · 2.375% due May 15, 2051

Original term
30-Year
Maturity
May 15, 2051
Coupon
2.375%
Pays
Semi-Annual
Dated
May 15, 2021
First coupon
Nov 15, 2021
Priced through
Sep 9, 2026
Analyzed through
Sep 9, 2026

Statement of August 31, 2026

Amount outstanding
$92.73bn
Held stripped
$20.80bn
Share stripped
22.43%

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
5.369%
Modified duration
16.040 yr
DV01
0.0964
Convexity
342.342
Dirty price
60.074

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 16.224 years against a modified duration of 16.040.

Against the fitted curve

Priced 1.5 bp rich to the curve on that day, 14.14 cents per 100 of face.

That is -0.66 standard deviations from its own typical residual.

Yield to maturity, 1,331 observations

1%2%3%4%5%6%May 17, 2021Sep 9, 2026May 17, 2021Yield to maturity2.357%May 25, 2021Yield to maturity2.257%Jun 3, 2021Yield to maturity2.295%Jun 11, 2021Yield to maturity2.153%Jun 21, 2021Yield to maturity2.113%Jun 29, 2021Yield to maturity2.097%Jul 8, 2021Yield to maturity1.914%Jul 16, 2021Yield to maturity1.928%Jul 26, 2021Yield to maturity1.927%Aug 3, 2021Yield to maturity1.847%Aug 11, 2021Yield to maturity1.995%Aug 19, 2021Yield to maturity1.869%Aug 27, 2021Yield to maturity1.905%Sep 7, 2021Yield to maturity1.980%Sep 15, 2021Yield to maturity1.857%Sep 23, 2021Yield to maturity1.913%Oct 1, 2021Yield to maturity2.035%Oct 12, 2021Yield to maturity2.093%Oct 20, 2021Yield to maturity2.115%Oct 28, 2021Yield to maturity1.954%Nov 5, 2021Yield to maturity1.865%Nov 16, 2021Yield to maturity2.018%Nov 24, 2021Yield to maturity1.960%Dec 3, 2021Yield to maturity1.681%Dec 13, 2021Yield to maturity1.810%Dec 21, 2021Yield to maturity1.885%Dec 30, 2021Yield to maturity1.925%Jan 7, 2022Yield to maturity2.112%Jan 18, 2022Yield to maturity2.178%Jan 26, 2022Yield to maturity2.160%Feb 3, 2022Yield to maturity2.143%Feb 11, 2022Yield to maturity2.256%Feb 22, 2022Yield to maturity2.256%Mar 2, 2022Yield to maturity2.247%Mar 10, 2022Yield to maturity2.388%Mar 18, 2022Yield to maturity2.431%Mar 28, 2022Yield to maturity2.583%Apr 5, 2022Yield to maturity2.590%Apr 13, 2022Yield to maturity2.826%Apr 22, 2022Yield to maturity2.974%May 2, 2022Yield to maturity3.089%May 10, 2022Yield to maturity3.148%May 18, 2022Yield to maturity3.115%May 26, 2022Yield to maturity3.033%Jun 6, 2022Yield to maturity3.238%Jun 14, 2022Yield to maturity3.495%Jun 23, 2022Yield to maturity3.253%Jul 1, 2022Yield to maturity3.148%Jul 12, 2022Yield to maturity3.174%Jul 20, 2022Yield to maturity3.221%Jul 28, 2022Yield to maturity3.070%Aug 5, 2022Yield to maturity3.108%Aug 15, 2022Yield to maturity3.158%Aug 23, 2022Yield to maturity3.318%Aug 31, 2022Yield to maturity3.326%Sep 9, 2022Yield to maturity3.521%Sep 19, 2022Yield to maturity3.571%Sep 27, 2022Yield to maturity3.919%Oct 5, 2022Yield to maturity3.830%Oct 14, 2022Yield to maturity4.041%Oct 24, 2022Yield to maturity4.454%Nov 1, 2022Yield to maturity4.188%Nov 9, 2022Yield to maturity4.345%Nov 18, 2022Yield to maturity4.020%Nov 29, 2022Yield to maturity3.901%Dec 7, 2022Yield to maturity3.502%Dec 15, 2022Yield to maturity3.559%Dec 23, 2022Yield to maturity3.902%Jan 4, 2023Yield to maturity3.880%Jan 12, 2023Yield to maturity3.623%Jan 23, 2023Yield to maturity3.732%Jan 31, 2023Yield to maturity3.696%Feb 8, 2023Yield to maturity3.752%Feb 16, 2023Yield to maturity3.961%Feb 27, 2023Yield to maturity3.971%Mar 7, 2023Yield to maturity3.915%Mar 15, 2023Yield to maturity3.738%Mar 23, 2023Yield to maturity3.703%Mar 31, 2023Yield to maturity3.719%Apr 10, 2023Yield to maturity3.673%Apr 18, 2023Yield to maturity3.826%Apr 26, 2023Yield to maturity3.732%May 4, 2023Yield to maturity3.763%May 12, 2023Yield to maturity3.827%May 22, 2023Yield to maturity4.017%May 31, 2023Yield to maturity3.902%Jun 8, 2023Yield to maturity3.941%Jun 16, 2023Yield to maturity3.906%Jun 27, 2023Yield to maturity3.882%Jul 6, 2023Yield to maturity4.044%Jul 14, 2023Yield to maturity3.972%Jul 24, 2023Yield to maturity3.964%Aug 1, 2023Yield to maturity4.149%Aug 9, 2023Yield to maturity4.224%Aug 17, 2023Yield to maturity4.462%Aug 25, 2023Yield to maturity4.355%Sep 5, 2023Yield to maturity4.434%Sep 13, 2023Yield to maturity4.397%Sep 21, 2023Yield to maturity4.627%Sep 29, 2023Yield to maturity4.798%Oct 10, 2023Yield to maturity4.907%Oct 18, 2023Yield to maturity5.063%Oct 26, 2023Yield to maturity5.067%Nov 3, 2023Yield to maturity4.824%Nov 13, 2023Yield to maturity4.828%Nov 21, 2023Yield to maturity4.653%Nov 30, 2023Yield to maturity4.611%Dec 8, 2023Yield to maturity4.394%Dec 18, 2023Yield to maturity4.143%Dec 27, 2023Yield to maturity4.048%Jan 5, 2024Yield to maturity4.297%Jan 16, 2024Yield to maturity4.406%Jan 24, 2024Yield to maturity4.511%Feb 1, 2024Yield to maturity4.202%Feb 9, 2024Yield to maturity4.461%Feb 20, 2024Yield to maturity4.536%Feb 28, 2024Yield to maturity4.490%Mar 7, 2024Yield to maturity4.330%Mar 15, 2024Yield to maturity4.516%Mar 25, 2024Yield to maturity4.496%Apr 2, 2024Yield to maturity4.574%Apr 10, 2024Yield to maturity4.693%Apr 18, 2024Yield to maturity4.800%Apr 26, 2024Yield to maturity4.835%May 6, 2024Yield to maturity4.695%May 14, 2024Yield to maturity4.658%May 22, 2024Yield to maturity4.608%May 31, 2024Yield to maturity4.705%Jun 10, 2024Yield to maturity4.651%Jun 18, 2024Yield to maturity4.428%Jun 27, 2024Yield to maturity4.491%Jul 8, 2024Yield to maturity4.535%Jul 16, 2024Yield to maturity4.455%Jul 24, 2024Yield to maturity4.623%Aug 1, 2024Yield to maturity4.355%Aug 9, 2024Yield to maturity4.328%Aug 19, 2024Yield to maturity4.220%Aug 27, 2024Yield to maturity4.233%Sep 5, 2024Yield to maturity4.120%Sep 13, 2024Yield to maturity4.085%Sep 23, 2024Yield to maturity4.190%Oct 1, 2024Yield to maturity4.184%Oct 9, 2024Yield to maturity4.436%Oct 18, 2024Yield to maturity4.479%Oct 28, 2024Yield to maturity4.613%Nov 5, 2024Yield to maturity4.534%Nov 14, 2024Yield to maturity4.698%Nov 22, 2024Yield to maturity4.708%Dec 3, 2024Yield to maturity4.509%Dec 11, 2024Yield to maturity4.591%Dec 19, 2024Yield to maturity4.852%Dec 30, 2024Yield to maturity4.877%Jan 8, 2025Yield to maturity5.018%Jan 16, 2025Yield to maturity4.935%Jan 27, 2025Yield to maturity4.859%Feb 4, 2025Yield to maturity4.843%Feb 12, 2025Yield to maturity4.922%Feb 21, 2025Yield to maturity4.767%Mar 3, 2025Yield to maturity4.558%Mar 11, 2025Yield to maturity4.709%Mar 19, 2025Yield to maturity4.666%Mar 27, 2025Yield to maturity4.835%Apr 4, 2025Yield to maturity4.523%Apr 14, 2025Yield to maturity4.913%Apr 22, 2025Yield to maturity4.988%Apr 30, 2025Yield to maturity4.776%May 8, 2025Yield to maturity4.947%May 16, 2025Yield to maturity4.998%May 27, 2025Yield to maturity5.045%Jun 4, 2025Yield to maturity4.993%Jun 12, 2025Yield to maturity4.944%Jun 23, 2025Yield to maturity4.972%Jul 1, 2025Yield to maturity4.869%Jul 10, 2025Yield to maturity4.958%Jul 18, 2025Yield to maturity5.088%Jul 28, 2025Yield to maturity5.050%Aug 5, 2025Yield to maturity4.858%Aug 13, 2025Yield to maturity4.911%Aug 21, 2025Yield to maturity5.010%Aug 29, 2025Yield to maturity5.006%Sep 9, 2025Yield to maturity4.798%Sep 17, 2025Yield to maturity4.738%Sep 25, 2025Yield to maturity4.836%Oct 3, 2025Yield to maturity4.795%Oct 14, 2025Yield to maturity4.695%Oct 22, 2025Yield to maturity4.625%Oct 30, 2025Yield to maturity4.731%Nov 7, 2025Yield to maturity4.787%Nov 18, 2025Yield to maturity4.837%Nov 26, 2025Yield to maturity4.731%Dec 5, 2025Yield to maturity4.883%Dec 15, 2025Yield to maturity4.943%Dec 23, 2025Yield to maturity4.924%Jan 2, 2026Yield to maturity4.959%Jan 12, 2026Yield to maturity4.931%Jan 21, 2026Yield to maturity4.962%Jan 29, 2026Yield to maturity4.940%Feb 6, 2026Yield to maturity4.942%Feb 17, 2026Yield to maturity4.770%Feb 25, 2026Yield to maturity4.780%Mar 5, 2026Yield to maturity4.833%Mar 13, 2026Yield to maturity5.005%Mar 23, 2026Yield to maturity5.028%Mar 31, 2026Yield to maturity4.987%Apr 8, 2026Yield to maturity4.986%Apr 16, 2026Yield to maturity5.024%Apr 24, 2026Yield to maturity5.002%May 4, 2026Yield to maturity5.121%May 12, 2026Yield to maturity5.126%May 20, 2026Yield to maturity5.211%May 29, 2026Yield to maturity5.090%Jun 8, 2026Yield to maturity5.135%Jun 16, 2026Yield to maturity5.024%Jun 25, 2026Yield to maturity4.960%Jul 6, 2026Yield to maturity5.088%Jul 14, 2026Yield to maturity5.182%Jul 22, 2026Yield to maturity5.253%Jul 30, 2026Yield to maturity5.312%Aug 7, 2026Yield to maturity5.298%Aug 17, 2026Yield to maturity5.416%Aug 25, 2026Yield to maturity5.260%Sep 2, 2026Yield to maturity5.361%Sep 9, 2026Yield to maturity5.369%

Price history

1,331 trading days to Sep 9, 2026

5060708090100110120May 17, 2021Sep 9, 2026May 17, 2021Close100.375May 25, 2021Close102.563Jun 3, 2021Close101.719Jun 11, 2021Close104.875Jun 21, 2021Close105.781Jun 29, 2021Close106.156Jul 8, 2021Close110.438Jul 16, 2021Close110.094Jul 26, 2021Close110.125Aug 3, 2021Close112.063Aug 11, 2021Close108.500Aug 19, 2021Close111.500Aug 27, 2021Close110.625Sep 7, 2021Close108.844Sep 15, 2021Close111.781Sep 23, 2021Close110.406Oct 1, 2021Close107.531Oct 12, 2021Close106.188Oct 20, 2021Close105.688Oct 28, 2021Close109.406Nov 5, 2021Close111.531Nov 16, 2021Close107.906Nov 24, 2021Close109.250Dec 3, 2021Close116.063Dec 13, 2021Close112.844Dec 21, 2021Close111.031Dec 30, 2021Close110.063Jan 7, 2022Close105.719Jan 18, 2022Close104.250Jan 26, 2022Close104.656Feb 3, 2022Close105.031Feb 11, 2022Close102.531Feb 22, 2022Close102.531Mar 2, 2022Close102.719Mar 10, 2022Close99.719Mar 18, 2022Close98.844Mar 28, 2022Close95.750Apr 5, 2022Close95.625Apr 13, 2022Close91.094Apr 22, 2022Close88.406May 2, 2022Close86.375May 10, 2022Close85.375May 18, 2022Close85.938May 26, 2022Close87.375Jun 6, 2022Close83.875Jun 14, 2022Close79.719Jun 23, 2022Close83.625Jul 1, 2022Close85.406Jul 12, 2022Close84.969Jul 20, 2022Close84.188Jul 28, 2022Close86.781Aug 5, 2022Close86.125Aug 15, 2022Close85.281Aug 23, 2022Close82.625Aug 31, 2022Close82.500Sep 9, 2022Close79.406Sep 19, 2022Close78.656Sep 27, 2022Close73.563Oct 5, 2022Close74.844Oct 14, 2022Close71.906Oct 24, 2022Close66.594Nov 1, 2022Close69.969Nov 9, 2022Close67.969Nov 18, 2022Close72.250Nov 29, 2022Close73.906Dec 7, 2022Close79.813Dec 15, 2022Close78.938Dec 23, 2022Close73.938Jan 4, 2023Close74.250Jan 12, 2023Close78.000Jan 23, 2023Close76.406Jan 31, 2023Close76.938Feb 8, 2023Close76.125Feb 16, 2023Close73.188Feb 27, 2023Close73.063Mar 7, 2023Close73.844Mar 15, 2023Close76.375Mar 23, 2023Close76.906Mar 31, 2023Close76.688Apr 10, 2023Close77.375Apr 18, 2023Close75.156Apr 26, 2023Close76.531May 4, 2023Close76.094May 12, 2023Close75.188May 22, 2023Close72.563May 31, 2023Close74.156Jun 8, 2023Close73.625Jun 16, 2023Close74.125Jun 27, 2023Close74.469Jul 6, 2023Close72.250Jul 14, 2023Close73.250Jul 24, 2023Close73.375Aug 1, 2023Close70.906Aug 9, 2023Close69.938Aug 17, 2023Close66.969Aug 25, 2023Close68.313Sep 5, 2023Close67.344Sep 13, 2023Close67.813Sep 21, 2023Close65.063Sep 29, 2023Close63.125Oct 10, 2023Close61.938Oct 18, 2023Close60.281Oct 26, 2023Close60.250Nov 3, 2023Close62.906Nov 13, 2023Close62.875Nov 21, 2023Close64.875Nov 30, 2023Close65.375Dec 8, 2023Close68.000Dec 18, 2023Close71.188Dec 27, 2023Close72.469Jan 5, 2024Close69.250Jan 16, 2024Close67.906Jan 24, 2024Close66.656Feb 1, 2024Close70.500Feb 9, 2024Close67.281Feb 20, 2024Close66.406Feb 28, 2024Close66.969Mar 7, 2024Close68.938Mar 15, 2024Close66.688Mar 25, 2024Close66.938Apr 2, 2024Close66.031Apr 10, 2024Close64.656Apr 18, 2024Close63.469Apr 26, 2024Close63.094May 6, 2024Close64.688May 14, 2024Close65.125May 22, 2024Close65.719May 31, 2024Close64.625Jun 10, 2024Close65.250Jun 18, 2024Close67.906Jun 27, 2024Close67.156Jul 8, 2024Close66.656Jul 16, 2024Close67.625Jul 24, 2024Close65.656Aug 1, 2024Close68.875Aug 9, 2024Close69.219Aug 19, 2024Close70.594Aug 27, 2024Close70.438Sep 5, 2024Close71.906Sep 13, 2024Close72.375Sep 23, 2024Close71.031Oct 1, 2024Close71.125Oct 9, 2024Close68.000Oct 18, 2024Close67.500Oct 28, 2024Close65.938Nov 5, 2024Close66.875Nov 14, 2024Close65.000Nov 22, 2024Close64.906Dec 3, 2024Close67.219Dec 11, 2024Close66.281Dec 19, 2024Close63.344Dec 30, 2024Close63.094Jan 8, 2025Close61.594Jan 16, 2025Close62.500Jan 27, 2025Close63.344Feb 4, 2025Close63.531Feb 12, 2025Close62.688Feb 21, 2025Close64.406Mar 3, 2025Close66.813Mar 11, 2025Close65.094Mar 19, 2025Close65.594Mar 27, 2025Close63.719Apr 4, 2025Close67.281Apr 14, 2025Close62.906Apr 22, 2025Close62.125Apr 30, 2025Close64.438May 8, 2025Close62.594May 16, 2025Close62.063May 27, 2025Close61.594Jun 4, 2025Close62.156Jun 12, 2025Close62.688Jun 23, 2025Close62.406Jul 1, 2025Close63.531Jul 10, 2025Close62.594Jul 18, 2025Close61.250Jul 28, 2025Close61.656Aug 5, 2025Close63.719Aug 13, 2025Close63.156Aug 21, 2025Close62.125Aug 29, 2025Close62.188Sep 9, 2025Close64.438Sep 17, 2025Close65.125Sep 25, 2025Close64.063Oct 3, 2025Close64.531Oct 14, 2025Close65.656Oct 22, 2025Close66.469Oct 30, 2025Close65.281Nov 7, 2025Close64.688Nov 18, 2025Close64.156Nov 26, 2025Close65.344Dec 5, 2025Close63.688Dec 15, 2025Close63.063Dec 23, 2025Close63.281Jan 2, 2026Close62.938Jan 12, 2026Close63.250Jan 21, 2026Close62.938Jan 29, 2026Close63.188Feb 6, 2026Close63.188Feb 17, 2026Close65.063Feb 25, 2026Close64.969Mar 5, 2026Close64.406Mar 13, 2026Close62.594Mar 23, 2026Close62.375Mar 31, 2026Close62.813Apr 8, 2026Close62.844Apr 16, 2026Close62.469Apr 24, 2026Close62.719May 4, 2026Close61.500May 12, 2026Close61.469May 20, 2026Close60.625May 29, 2026Close61.875Jun 8, 2026Close61.438Jun 16, 2026Close62.594Jun 25, 2026Close63.281Jul 6, 2026Close61.969Jul 14, 2026Close61.031Jul 22, 2026Close60.344Jul 30, 2026Close59.781Aug 7, 2026Close59.938Aug 17, 2026Close58.813Aug 25, 2026Close60.344Sep 2, 2026Close59.375Sep 9, 2026Close59.313
The most recent 20 trading days of prices for 912810SX7.
DateBidOfferClose
Sep 9, 202659.15659.12559.313
Sep 8, 202659.65659.62559.531
Sep 4, 202659.68859.65659.625
Sep 3, 202659.76659.75059.594
Sep 2, 202659.37559.34459.375
Sep 1, 202659.62559.59459.375
Aug 31, 202659.46959.43859.563
Aug 28, 202660.25060.21959.875
Aug 27, 202660.28160.25060.125
Aug 26, 202660.26660.25060.250
Aug 25, 202660.31360.28160.344
Aug 24, 202659.93859.90659.781
Aug 21, 202659.42259.40659.313
Aug 20, 202659.53159.50059.688
Aug 19, 202659.93859.90660.031
Aug 18, 202658.93858.90659.063
Aug 17, 202659.09459.06358.813
Aug 14, 202659.28159.25059.344
Aug 13, 202659.78159.75059.781
Aug 12, 202659.60959.59459.438

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 912810SX7.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
May 13, 2021May 17, 2021New issue$27.0bn$41.3bn2.22x2.395%
Jun 10, 2021Jun 15, 2021Reopening$24.0bn$26.2bn2.29x2.172%
Jul 13, 2021Jul 15, 2021Reopening$24.0bn$28.0bn2.19x2.000%

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.