Treasury bond

912810SS8 · 1.625% due November 15, 2050

Original term
30-Year
Maturity
Nov 15, 2050
Coupon
1.625%
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
$85.46bn
Held stripped
$15.96bn
Share stripped
18.68%

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
5.384%
Modified duration
17.201 yr
DV01
0.0860
Convexity
373.593
Dirty price
50.021

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 17.444 years against a modified duration of 17.201.

Against the fitted curve

Priced 3.0 bp rich to the curve on that day, 25.74 cents per 100 of face.

That is -0.88 standard deviations from its own typical residual.

Yield to maturity, 1,456 observations

1%2%3%4%5%6%Nov 16, 2020Sep 9, 2026Nov 16, 2020Yield to maturity1.662%Nov 25, 2020Yield to maturity1.625%Dec 7, 2020Yield to maturity1.692%Dec 16, 2020Yield to maturity1.661%Dec 28, 2020Yield to maturity1.666%Jan 7, 2021Yield to maturity1.848%Jan 19, 2021Yield to maturity1.839%Jan 28, 2021Yield to maturity1.813%Feb 8, 2021Yield to maturity1.956%Feb 18, 2021Yield to maturity2.082%Mar 1, 2021Yield to maturity2.236%Mar 10, 2021Yield to maturity2.254%Mar 19, 2021Yield to maturity2.458%Mar 30, 2021Yield to maturity2.391%Apr 8, 2021Yield to maturity2.326%Apr 19, 2021Yield to maturity2.301%Apr 28, 2021Yield to maturity2.300%May 7, 2021Yield to maturity2.286%May 18, 2021Yield to maturity2.390%May 27, 2021Yield to maturity2.309%Jun 8, 2021Yield to maturity2.230%Jun 17, 2021Yield to maturity2.130%Jun 28, 2021Yield to maturity2.125%Jul 8, 2021Yield to maturity1.936%Jul 19, 2021Yield to maturity1.837%Jul 28, 2021Yield to maturity1.929%Aug 6, 2021Yield to maturity1.963%Aug 17, 2021Yield to maturity1.938%Aug 26, 2021Yield to maturity1.952%Sep 7, 2021Yield to maturity2.001%Sep 16, 2021Yield to maturity1.898%Sep 27, 2021Yield to maturity2.005%Oct 6, 2021Yield to maturity2.090%Oct 18, 2021Yield to maturity2.023%Oct 27, 2021Yield to maturity1.958%Nov 5, 2021Yield to maturity1.885%Nov 17, 2021Yield to maturity2.013%Nov 29, 2021Yield to maturity1.888%Dec 8, 2021Yield to maturity1.898%Dec 17, 2021Yield to maturity1.851%Dec 29, 2021Yield to maturity1.985%Jan 7, 2022Yield to maturity2.136%Jan 19, 2022Yield to maturity2.163%Jan 28, 2022Yield to maturity2.094%Feb 8, 2022Yield to maturity2.270%Feb 17, 2022Yield to maturity2.350%Mar 1, 2022Yield to maturity2.151%Mar 10, 2022Yield to maturity2.435%Mar 21, 2022Yield to maturity2.603%Mar 30, 2022Yield to maturity2.531%Apr 8, 2022Yield to maturity2.805%Apr 20, 2022Yield to maturity2.939%Apr 29, 2022Yield to maturity2.997%May 10, 2022Yield to maturity3.167%May 19, 2022Yield to maturity3.127%May 31, 2022Yield to maturity3.151%Jun 9, 2022Yield to maturity3.252%Jun 21, 2022Yield to maturity3.463%Jun 30, 2022Yield to maturity3.198%Jul 12, 2022Yield to maturity3.197%Jul 21, 2022Yield to maturity3.148%Aug 1, 2022Yield to maturity2.998%Aug 10, 2022Yield to maturity3.118%Aug 19, 2022Yield to maturity3.324%Aug 30, 2022Yield to maturity3.315%Sep 9, 2022Yield to maturity3.558%Sep 20, 2022Yield to maturity3.669%Sep 29, 2022Yield to maturity3.778%Oct 11, 2022Yield to maturity3.983%Oct 20, 2022Yield to maturity4.301%Oct 31, 2022Yield to maturity4.284%Nov 9, 2022Yield to maturity4.352%Nov 21, 2022Yield to maturity4.032%Dec 1, 2022Yield to maturity3.732%Dec 12, 2022Yield to maturity3.639%Dec 21, 2022Yield to maturity3.820%Jan 3, 2023Yield to maturity3.957%Jan 12, 2023Yield to maturity3.625%Jan 24, 2023Yield to maturity3.659%Feb 2, 2023Yield to maturity3.595%Feb 13, 2023Yield to maturity3.809%Feb 23, 2023Yield to maturity3.905%Mar 6, 2023Yield to maturity3.937%Mar 15, 2023Yield to maturity3.732%Mar 24, 2023Yield to maturity3.693%Apr 4, 2023Yield to maturity3.644%Apr 13, 2023Yield to maturity3.736%Apr 24, 2023Yield to maturity3.767%May 3, 2023Yield to maturity3.735%May 12, 2023Yield to maturity3.834%May 23, 2023Yield to maturity4.008%Jun 2, 2023Yield to maturity3.935%Jun 13, 2023Yield to maturity3.991%Jun 23, 2023Yield to maturity3.864%Jul 5, 2023Yield to maturity3.987%Jul 14, 2023Yield to maturity3.973%Jul 25, 2023Yield to maturity3.985%Aug 3, 2023Yield to maturity4.353%Aug 14, 2023Yield to maturity4.335%Aug 23, 2023Yield to maturity4.323%Sep 1, 2023Yield to maturity4.343%Sep 13, 2023Yield to maturity4.393%Sep 22, 2023Yield to maturity4.590%Oct 3, 2023Yield to maturity5.017%Oct 13, 2023Yield to maturity4.851%Oct 24, 2023Yield to maturity5.019%Nov 2, 2023Yield to maturity4.887%Nov 13, 2023Yield to maturity4.830%Nov 22, 2023Yield to maturity4.634%Dec 4, 2023Yield to maturity4.514%Dec 13, 2023Yield to maturity4.279%Dec 22, 2023Yield to maturity4.148%Jan 4, 2024Yield to maturity4.229%Jan 16, 2024Yield to maturity4.416%Jan 25, 2024Yield to maturity4.485%Feb 5, 2024Yield to maturity4.446%Feb 14, 2024Yield to maturity4.536%Feb 26, 2024Yield to maturity4.486%Mar 6, 2024Yield to maturity4.327%Mar 15, 2024Yield to maturity4.514%Mar 26, 2024Yield to maturity4.478%Apr 4, 2024Yield to maturity4.539%Apr 15, 2024Yield to maturity4.801%Apr 24, 2024Yield to maturity4.838%May 3, 2024Yield to maturity4.721%May 14, 2024Yield to maturity4.662%May 23, 2024Yield to maturity4.646%Jun 4, 2024Yield to maturity4.544%Jun 13, 2024Yield to maturity4.469%Jun 25, 2024Yield to maturity4.434%Jul 5, 2024Yield to maturity4.548%Jul 16, 2024Yield to maturity4.465%Jul 25, 2024Yield to maturity4.597%Aug 5, 2024Yield to maturity4.179%Aug 14, 2024Yield to maturity4.241%Aug 23, 2024Yield to maturity4.227%Sep 4, 2024Yield to maturity4.177%Sep 13, 2024Yield to maturity4.101%Sep 24, 2024Yield to maturity4.211%Oct 3, 2024Yield to maturity4.313%Oct 15, 2024Yield to maturity4.433%Oct 24, 2024Yield to maturity4.579%Nov 4, 2024Yield to maturity4.603%Nov 14, 2024Yield to maturity4.716%Nov 25, 2024Yield to maturity4.578%Dec 5, 2024Yield to maturity4.450%Dec 16, 2024Yield to maturity4.727%Dec 26, 2024Yield to maturity4.881%Jan 7, 2025Yield to maturity5.028%Jan 16, 2025Yield to maturity4.945%Jan 28, 2025Yield to maturity4.899%Feb 6, 2025Yield to maturity4.758%Feb 18, 2025Yield to maturity4.889%Feb 27, 2025Yield to maturity4.680%Mar 10, 2025Yield to maturity4.683%Mar 19, 2025Yield to maturity4.682%Mar 28, 2025Yield to maturity4.762%Apr 8, 2025Yield to maturity4.860%Apr 17, 2025Yield to maturity4.943%Apr 28, 2025Yield to maturity4.824%May 7, 2025Yield to maturity4.900%May 16, 2025Yield to maturity5.025%May 28, 2025Yield to maturity5.095%Jun 6, 2025Yield to maturity5.094%Jun 17, 2025Yield to maturity5.016%Jun 27, 2025Yield to maturity4.970%Jul 9, 2025Yield to maturity4.982%Jul 18, 2025Yield to maturity5.109%Jul 29, 2025Yield to maturity4.975%Aug 7, 2025Yield to maturity4.924%Aug 18, 2025Yield to maturity5.047%Aug 27, 2025Yield to maturity5.032%Sep 8, 2025Yield to maturity4.795%Sep 17, 2025Yield to maturity4.759%Sep 26, 2025Yield to maturity4.870%Oct 7, 2025Yield to maturity4.828%Oct 17, 2025Yield to maturity4.699%Oct 28, 2025Yield to maturity4.646%Nov 6, 2025Yield to maturity4.791%Nov 18, 2025Yield to maturity4.855%Nov 28, 2025Yield to maturity4.779%Dec 9, 2025Yield to maturity4.923%Dec 18, 2025Yield to maturity4.919%Dec 30, 2025Yield to maturity4.932%Jan 9, 2026Yield to maturity4.935%Jan 21, 2026Yield to maturity4.984%Jan 30, 2026Yield to maturity4.987%Feb 10, 2026Yield to maturity4.895%Feb 20, 2026Yield to maturity4.836%Mar 3, 2026Yield to maturity4.813%Mar 12, 2026Yield to maturity5.005%Mar 23, 2026Yield to maturity5.052%Apr 1, 2026Yield to maturity5.045%Apr 10, 2026Yield to maturity5.034%Apr 21, 2026Yield to maturity5.010%Apr 30, 2026Yield to maturity5.108%May 11, 2026Yield to maturity5.104%May 20, 2026Yield to maturity5.235%Jun 1, 2026Yield to maturity5.110%Jun 10, 2026Yield to maturity5.151%Jun 22, 2026Yield to maturity5.065%Jul 1, 2026Yield to maturity5.088%Jul 13, 2026Yield to maturity5.216%Jul 22, 2026Yield to maturity5.272%Jul 31, 2026Yield to maturity5.390%Aug 11, 2026Yield to maturity5.368%Aug 20, 2026Yield to maturity5.345%Aug 31, 2026Yield to maturity5.356%Sep 9, 2026Yield to maturity5.384%

Price history

1,456 trading days to Sep 9, 2026

405060708090100110Nov 16, 2020Sep 9, 2026Nov 16, 2020Close99.125Nov 25, 2020Close100.000Dec 7, 2020Close98.438Dec 16, 2020Close99.156Dec 28, 2020Close99.031Jan 7, 2021Close94.906Jan 19, 2021Close95.094Jan 28, 2021Close95.688Feb 8, 2021Close92.563Feb 18, 2021Close89.906Mar 1, 2021Close86.781Mar 10, 2021Close86.438Mar 19, 2021Close82.531Mar 30, 2021Close83.813Apr 8, 2021Close85.063Apr 19, 2021Close85.563Apr 28, 2021Close85.594May 7, 2021Close85.875May 18, 2021Close83.875May 27, 2021Close85.438Jun 8, 2021Close87.000Jun 17, 2021Close89.000Jun 28, 2021Close89.125Jul 8, 2021Close93.063Jul 19, 2021Close95.219Jul 28, 2021Close93.219Aug 6, 2021Close92.500Aug 17, 2021Close93.031Aug 26, 2021Close92.750Sep 7, 2021Close91.719Sep 16, 2021Close93.906Sep 27, 2021Close91.656Oct 6, 2021Close89.906Oct 18, 2021Close91.281Oct 27, 2021Close92.656Nov 5, 2021Close94.219Nov 17, 2021Close91.500Nov 29, 2021Close94.156Dec 8, 2021Close93.938Dec 17, 2021Close94.969Dec 29, 2021Close92.125Jan 7, 2022Close89.031Jan 19, 2022Close88.500Jan 28, 2022Close89.906Feb 8, 2022Close86.438Feb 17, 2022Close84.906Mar 1, 2022Close88.781Mar 10, 2022Close83.344Mar 21, 2022Close80.344Mar 30, 2022Close81.625Apr 8, 2022Close76.906Apr 20, 2022Close74.719Apr 29, 2022Close73.813May 10, 2022Close71.188May 19, 2022Close71.813May 31, 2022Close71.469Jun 9, 2022Close69.969Jun 21, 2022Close66.938Jun 30, 2022Close70.813Jul 12, 2022Close70.844Jul 21, 2022Close71.594Aug 1, 2022Close73.938Aug 10, 2022Close72.094Aug 19, 2022Close69.031Aug 30, 2022Close69.188Sep 9, 2022Close65.781Sep 20, 2022Close64.313Sep 29, 2022Close62.906Oct 11, 2022Close60.344Oct 20, 2022Close56.625Oct 31, 2022Close56.844Nov 9, 2022Close56.094Nov 21, 2022Close59.844Dec 1, 2022Close63.625Dec 12, 2022Close64.875Dec 21, 2022Close62.531Jan 3, 2023Close60.844Jan 12, 2023Close65.125Jan 24, 2023Close64.688Feb 2, 2023Close65.563Feb 13, 2023Close62.781Feb 23, 2023Close61.594Mar 6, 2023Close61.219Mar 15, 2023Close63.844Mar 24, 2023Close64.375Apr 4, 2023Close65.031Apr 13, 2023Close63.844Apr 24, 2023Close63.469May 3, 2023Close63.906May 12, 2023Close62.656May 23, 2023Close60.531Jun 2, 2023Close61.438Jun 13, 2023Close60.781Jun 23, 2023Close62.375Jul 5, 2023Close60.875Jul 14, 2023Close61.063Jul 25, 2023Close60.938Aug 3, 2023Close56.688Aug 14, 2023Close56.906Aug 23, 2023Close57.063Sep 1, 2023Close56.875Sep 13, 2023Close56.344Sep 22, 2023Close54.250Oct 3, 2023Close50.031Oct 13, 2023Close51.656Oct 24, 2023Close50.063Nov 2, 2023Close51.344Nov 13, 2023Close51.938Nov 22, 2023Close53.938Dec 4, 2023Close55.219Dec 13, 2023Close57.813Dec 22, 2023Close59.344Jan 4, 2024Close58.438Jan 16, 2024Close56.375Jan 25, 2024Close55.656Feb 5, 2024Close56.094Feb 14, 2024Close55.156Feb 26, 2024Close55.719Mar 6, 2024Close57.469Mar 15, 2024Close55.469Mar 26, 2024Close55.875Apr 4, 2024Close55.250Apr 15, 2024Close52.594Apr 24, 2024Close52.250May 3, 2024Close53.438May 14, 2024Close54.063May 23, 2024Close54.250Jun 4, 2024Close55.344Jun 13, 2024Close56.156Jun 25, 2024Close56.563Jul 5, 2024Close55.375Jul 16, 2024Close56.281Jul 25, 2024Close54.906Aug 5, 2024Close59.500Aug 14, 2024Close58.813Aug 23, 2024Close59.000Sep 4, 2024Close59.594Sep 13, 2024Close60.500Sep 24, 2024Close59.250Oct 3, 2024Close58.125Oct 15, 2024Close56.844Oct 24, 2024Close55.313Nov 4, 2024Close55.094Nov 14, 2024Close53.969Nov 25, 2024Close55.406Dec 5, 2024Close56.781Dec 16, 2024Close53.938Dec 26, 2024Close52.438Jan 7, 2025Close51.063Jan 16, 2025Close51.875Jan 28, 2025Close52.344Feb 6, 2025Close53.750Feb 18, 2025Close52.500Feb 27, 2025Close54.594Mar 10, 2025Close54.594Mar 19, 2025Close54.625Mar 28, 2025Close53.844Apr 8, 2025Close52.906Apr 17, 2025Close52.125Apr 28, 2025Close53.313May 7, 2025Close52.594May 16, 2025Close51.438May 28, 2025Close50.813Jun 6, 2025Close50.844Jun 17, 2025Close51.594Jun 27, 2025Close52.063Jul 9, 2025Close51.969Jul 18, 2025Close50.813Jul 29, 2025Close52.094Aug 7, 2025Close52.594Aug 18, 2025Close51.469Aug 27, 2025Close51.625Sep 8, 2025Close53.938Sep 17, 2025Close54.313Sep 26, 2025Close53.250Oct 7, 2025Close53.688Oct 17, 2025Close55.000Oct 28, 2025Close55.563Nov 6, 2025Close54.125Nov 18, 2025Close53.531Nov 28, 2025Close54.313Dec 9, 2025Close52.938Dec 18, 2025Close53.000Dec 30, 2025Close52.906Jan 9, 2026Close52.906Jan 21, 2026Close52.469Jan 30, 2026Close52.469Feb 10, 2026Close53.375Feb 20, 2026Close53.969Mar 3, 2026Close54.219Mar 12, 2026Close52.406Mar 23, 2026Close52.000Apr 1, 2026Close52.094Apr 10, 2026Close52.219Apr 21, 2026Close52.469Apr 30, 2026Close51.594May 11, 2026Close51.656May 20, 2026Close50.500Jun 1, 2026Close51.656Jun 10, 2026Close51.313Jun 22, 2026Close52.125Jul 1, 2026Close51.938Jul 13, 2026Close50.813Jul 22, 2026Close50.344Jul 31, 2026Close49.344Aug 11, 2026Close49.563Aug 20, 2026Close49.781Aug 31, 2026Close49.719Sep 9, 2026Close49.500
The most recent 20 trading days of prices for 912810SS8.
DateBidOfferClose
Sep 9, 202649.35949.31349.500
Sep 8, 202649.81349.78149.719
Sep 4, 202649.82849.78149.781
Sep 3, 202649.87549.84449.719
Sep 2, 202649.56349.53149.531
Sep 1, 202649.78149.75049.531
Aug 31, 202649.62549.59449.719
Aug 28, 202650.32850.28150.000
Aug 27, 202650.34450.31350.219
Aug 26, 202650.35950.34450.313
Aug 25, 202650.34450.31350.406
Aug 24, 202650.03150.00049.875
Aug 21, 202649.56349.53149.438
Aug 20, 202649.65649.62549.781
Aug 19, 202650.00049.96950.063
Aug 18, 202649.09449.06349.188
Aug 17, 202649.23449.21949.000
Aug 14, 202649.40649.37549.469
Aug 13, 202649.87549.84449.844
Aug 12, 202649.70349.68849.563

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 912810SS8.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Nov 12, 2020Nov 16, 2020New issue$27.0bn$34.4bn2.29x1.680%
Dec 10, 2020Dec 15, 2020Reopening$24.0bn$25.0bn2.48x1.665%
Jan 13, 2021Jan 15, 2021Reopening$24.0bn$26.4bn2.47x1.825%

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.