Treasury bond

912810SA7 · 3% due February 15, 2048

Original term
30-Year
Maturity
Feb 15, 2048
Coupon
3.000%
Pays
Semi-Annual
Dated
Feb 15, 2018
First coupon
Aug 15, 2018
Priced through
Oct 20, 2026
Analyzed through
Oct 20, 2026

Statement of September 30, 2026

Amount outstanding
$42.62bn
Held stripped
$10.49bn
Share stripped
24.61%

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, October 20, 2026

Yield to maturity
5.528%
Modified duration
14.056 yr
DV01
0.0971
Convexity
2.6
Dirty price
69.109

Where its rate sensitivity sits

<.01
0.01
0.04
0.08
0.18
0.34
0.55
1.06
1.44
8.04
2.56
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 14.296 years against a modified duration of 14.056.

Against the fitted curve

Priced 0.1 bp cheap to the curve on that day, 0.53 cents per 100 of face.

That is -0.35 standard deviations from its own typical residual.

Yield to maturity, 2,171 observations

1%2%3%4%5%6%Feb 15, 2018Oct 20, 2026Feb 15, 2018Yield to maturity3.150%Mar 2, 2018Yield to maturity3.137%Mar 16, 2018Yield to maturity3.080%Apr 2, 2018Yield to maturity2.971%Apr 16, 2018Yield to maturity3.029%Apr 30, 2018Yield to maturity3.110%May 14, 2018Yield to maturity3.128%May 29, 2018Yield to maturity2.959%Jun 12, 2018Yield to maturity3.090%Jun 26, 2018Yield to maturity3.029%Jul 11, 2018Yield to maturity2.947%Jul 25, 2018Yield to maturity3.065%Aug 8, 2018Yield to maturity3.119%Aug 22, 2018Yield to maturity2.989%Sep 6, 2018Yield to maturity3.058%Sep 20, 2018Yield to maturity3.208%Oct 4, 2018Yield to maturity3.351%Oct 19, 2018Yield to maturity3.387%Nov 2, 2018Yield to maturity3.462%Nov 19, 2018Yield to maturity3.324%Dec 4, 2018Yield to maturity3.170%Dec 19, 2018Yield to maturity3.008%Jan 4, 2019Yield to maturity2.985%Jan 18, 2019Yield to maturity3.103%Feb 4, 2019Yield to maturity3.069%Feb 19, 2019Yield to maturity2.997%Mar 5, 2019Yield to maturity3.090%Mar 19, 2019Yield to maturity3.024%Apr 2, 2019Yield to maturity2.883%Apr 16, 2019Yield to maturity2.997%May 1, 2019Yield to maturity2.921%May 15, 2019Yield to maturity2.823%May 30, 2019Yield to maturity2.653%Jun 13, 2019Yield to maturity2.610%Jun 27, 2019Yield to maturity2.529%Jul 12, 2019Yield to maturity2.639%Jul 26, 2019Yield to maturity2.597%Aug 9, 2019Yield to maturity2.242%Aug 23, 2019Yield to maturity2.015%Sep 9, 2019Yield to maturity2.099%Sep 23, 2019Yield to maturity2.160%Oct 7, 2019Yield to maturity2.044%Oct 22, 2019Yield to maturity2.259%Nov 5, 2019Yield to maturity2.334%Nov 20, 2019Yield to maturity2.202%Dec 5, 2019Yield to maturity2.246%Dec 19, 2019Yield to maturity2.348%Jan 6, 2020Yield to maturity2.277%Jan 21, 2020Yield to maturity2.235%Feb 4, 2020Yield to maturity2.088%Feb 19, 2020Yield to maturity2.015%Mar 4, 2020Yield to maturity1.675%Mar 18, 2020Yield to maturity1.869%Apr 1, 2020Yield to maturity1.283%Apr 16, 2020Yield to maturity1.196%Apr 30, 2020Yield to maturity1.279%May 14, 2020Yield to maturity1.284%May 29, 2020Yield to maturity1.391%Jun 12, 2020Yield to maturity1.426%Jun 26, 2020Yield to maturity1.348%Jul 13, 2020Yield to maturity1.304%Jul 27, 2020Yield to maturity1.226%Aug 10, 2020Yield to maturity1.221%Aug 24, 2020Yield to maturity1.322%Sep 8, 2020Yield to maturity1.389%Sep 22, 2020Yield to maturity1.379%Oct 6, 2020Yield to maturity1.507%Oct 21, 2020Yield to maturity1.568%Nov 4, 2020Yield to maturity1.478%Nov 19, 2020Yield to maturity1.513%Dec 4, 2020Yield to maturity1.668%Dec 18, 2020Yield to maturity1.628%Jan 5, 2021Yield to maturity1.631%Jan 20, 2021Yield to maturity1.772%Feb 3, 2021Yield to maturity1.856%Feb 18, 2021Yield to maturity2.027%Mar 4, 2021Yield to maturity2.263%Mar 18, 2021Yield to maturity2.428%Apr 1, 2021Yield to maturity2.312%Apr 15, 2021Yield to maturity2.191%Apr 29, 2021Yield to maturity2.284%May 13, 2021Yield to maturity2.377%May 27, 2021Yield to maturity2.279%Jun 11, 2021Yield to maturity2.137%Jun 25, 2021Yield to maturity2.157%Jul 12, 2021Yield to maturity1.990%Jul 26, 2021Yield to maturity1.915%Aug 9, 2021Yield to maturity1.945%Aug 23, 2021Yield to maturity1.845%Sep 7, 2021Yield to maturity1.965%Sep 21, 2021Yield to maturity1.838%Oct 5, 2021Yield to maturity2.088%Oct 20, 2021Yield to maturity2.117%Nov 3, 2021Yield to maturity2.001%Nov 18, 2021Yield to maturity1.974%Dec 3, 2021Yield to maturity1.695%Dec 17, 2021Yield to maturity1.833%Jan 3, 2022Yield to maturity2.034%Jan 18, 2022Yield to maturity2.207%Feb 1, 2022Yield to maturity2.154%Feb 15, 2022Yield to maturity2.416%Mar 2, 2022Yield to maturity2.303%Mar 16, 2022Yield to maturity2.512%Mar 30, 2022Yield to maturity2.549%Apr 13, 2022Yield to maturity2.903%Apr 28, 2022Yield to maturity3.030%May 12, 2022Yield to maturity3.155%May 26, 2022Yield to maturity3.140%Jun 10, 2022Yield to maturity3.367%Jun 27, 2022Yield to maturity3.480%Jul 12, 2022Yield to maturity3.309%Jul 26, 2022Yield to maturity3.214%Aug 9, 2022Yield to maturity3.185%Aug 23, 2022Yield to maturity3.472%Sep 7, 2022Yield to maturity3.640%Sep 21, 2022Yield to maturity3.706%Oct 5, 2022Yield to maturity3.987%Oct 20, 2022Yield to maturity4.439%Nov 3, 2022Yield to maturity4.372%Nov 18, 2022Yield to maturity4.158%Dec 5, 2022Yield to maturity3.834%Dec 19, 2022Yield to maturity3.803%Jan 4, 2023Yield to maturity3.971%Jan 19, 2023Yield to maturity3.690%Feb 2, 2023Yield to maturity3.661%Feb 16, 2023Yield to maturity4.057%Mar 3, 2023Yield to maturity4.051%Mar 17, 2023Yield to maturity3.720%Mar 31, 2023Yield to maturity3.803%Apr 14, 2023Yield to maturity3.853%Apr 28, 2023Yield to maturity3.794%May 12, 2023Yield to maturity3.892%May 26, 2023Yield to maturity4.114%Jun 12, 2023Yield to maturity4.022%Jun 27, 2023Yield to maturity3.992%Jul 12, 2023Yield to maturity4.125%Jul 26, 2023Yield to maturity4.103%Aug 9, 2023Yield to maturity4.335%Aug 23, 2023Yield to maturity4.461%Sep 7, 2023Yield to maturity4.537%Sep 21, 2023Yield to maturity4.747%Oct 5, 2023Yield to maturity5.085%Oct 20, 2023Yield to maturity5.307%Nov 3, 2023Yield to maturity4.964%Nov 17, 2023Yield to maturity4.813%Dec 4, 2023Yield to maturity4.636%Dec 18, 2023Yield to maturity4.254%Jan 3, 2024Yield to maturity4.243%Jan 18, 2024Yield to maturity4.547%Feb 1, 2024Yield to maturity4.265%Feb 15, 2024Yield to maturity4.581%Mar 1, 2024Yield to maturity4.499%Mar 15, 2024Yield to maturity4.592%Mar 29, 2024Yield to maturity4.497%Apr 12, 2024Yield to maturity4.753%Apr 26, 2024Yield to maturity4.917%May 10, 2024Yield to maturity4.775%May 24, 2024Yield to maturity4.708%Jun 10, 2024Yield to maturity4.726%Jun 25, 2024Yield to maturity4.512%Jul 10, 2024Yield to maturity4.622%Jul 24, 2024Yield to maturity4.684%Aug 7, 2024Yield to maturity4.412%Aug 21, 2024Yield to maturity4.237%Sep 5, 2024Yield to maturity4.176%Sep 19, 2024Yield to maturity4.198%Oct 3, 2024Yield to maturity4.331%Oct 18, 2024Yield to maturity4.528%Nov 1, 2024Yield to maturity4.729%Nov 18, 2024Yield to maturity4.790%Dec 3, 2024Yield to maturity4.580%Dec 17, 2024Yield to maturity4.751%Jan 2, 2025Yield to maturity4.940%Jan 16, 2025Yield to maturity4.976%Jan 31, 2025Yield to maturity4.959%Feb 14, 2025Yield to maturity4.828%Mar 3, 2025Yield to maturity4.594%Mar 17, 2025Yield to maturity4.737%Mar 31, 2025Yield to maturity4.717%Apr 14, 2025Yield to maturity4.944%Apr 28, 2025Yield to maturity4.819%May 12, 2025Yield to maturity5.019%May 27, 2025Yield to maturity5.071%Jun 10, 2025Yield to maturity5.062%Jun 25, 2025Yield to maturity4.944%Jul 10, 2025Yield to maturity4.964%Jul 24, 2025Yield to maturity5.049%Aug 7, 2025Yield to maturity4.904%Aug 21, 2025Yield to maturity5.002%Sep 5, 2025Yield to maturity4.833%Sep 19, 2025Yield to maturity4.813%Oct 3, 2025Yield to maturity4.776%Oct 20, 2025Yield to maturity4.635%Nov 3, 2025Yield to maturity4.756%Nov 18, 2025Yield to maturity4.805%Dec 3, 2025Yield to maturity4.785%Dec 17, 2025Yield to maturity4.887%Jan 2, 2026Yield to maturity4.918%Jan 16, 2026Yield to maturity4.884%Feb 2, 2026Yield to maturity4.952%Feb 17, 2026Yield to maturity4.728%Mar 3, 2026Yield to maturity4.746%Mar 17, 2026Yield to maturity4.910%Mar 31, 2026Yield to maturity4.958%Apr 14, 2026Yield to maturity4.932%Apr 28, 2026Yield to maturity5.006%May 12, 2026Yield to maturity5.102%May 27, 2026Yield to maturity5.087%Jun 10, 2026Yield to maturity5.119%Jun 25, 2026Yield to maturity4.938%Jul 10, 2026Yield to maturity5.149%Jul 24, 2026Yield to maturity5.257%Aug 7, 2026Yield to maturity5.278%Aug 21, 2026Yield to maturity5.340%Sep 4, 2026Yield to maturity5.318%Sep 21, 2026Yield to maturity5.383%Oct 5, 2026Yield to maturity5.758%Oct 20, 2026Yield to maturity5.528%

Price history

2,171 trading days to Oct 20, 2026

6080100120140160Feb 15, 2018Oct 20, 2026Feb 15, 2018Close97.094Mar 2, 2018Close97.344Mar 16, 2018Close98.438Apr 2, 2018Close100.563Apr 16, 2018Close99.438Apr 30, 2018Close97.875May 14, 2018Close97.531May 29, 2018Close100.813Jun 12, 2018Close98.250Jun 26, 2018Close99.438Jul 11, 2018Close101.031Jul 25, 2018Close98.750Aug 8, 2018Close97.719Aug 22, 2018Close100.219Sep 6, 2018Close98.875Sep 20, 2018Close96.063Oct 4, 2018Close93.469Oct 19, 2018Close92.844Nov 2, 2018Close91.531Nov 19, 2018Close93.969Dec 4, 2018Close96.781Dec 19, 2018Close99.844Jan 4, 2019Close100.281Jan 18, 2019Close98.031Feb 4, 2019Close98.688Feb 19, 2019Close100.063Mar 5, 2019Close98.281Mar 19, 2019Close99.531Apr 2, 2019Close102.281Apr 16, 2019Close100.063May 1, 2019Close101.531May 15, 2019Close103.469May 30, 2019Close106.938Jun 13, 2019Close107.844Jun 27, 2019Close109.563Jul 12, 2019Close107.219Jul 26, 2019Close108.094Aug 9, 2019Close115.906Aug 23, 2019Close121.250Sep 9, 2019Close119.219Sep 23, 2019Close117.750Oct 7, 2019Close120.500Oct 22, 2019Close115.438Nov 5, 2019Close113.719Nov 20, 2019Close116.719Dec 5, 2019Close115.688Dec 19, 2019Close113.375Jan 6, 2020Close114.938Jan 21, 2020Close115.875Feb 4, 2020Close119.281Feb 19, 2020Close121.000Mar 4, 2020Close129.469Mar 18, 2020Close124.500Apr 1, 2020Close140.125Apr 16, 2020Close142.594Apr 30, 2020Close140.156May 14, 2020Close139.969May 29, 2020Close136.875Jun 12, 2020Close135.875Jun 26, 2020Close138.000Jul 13, 2020Close139.188Jul 27, 2020Close141.375Aug 10, 2020Close141.469Aug 24, 2020Close138.563Sep 8, 2020Close136.656Sep 22, 2020Close136.875Oct 6, 2020Close133.375Oct 21, 2020Close131.719Nov 4, 2020Close134.063Nov 19, 2020Close133.094Dec 4, 2020Close129.031Dec 18, 2020Close130.000Jan 5, 2021Close129.906Jan 20, 2021Close126.313Feb 3, 2021Close124.219Feb 18, 2021Close120.156Mar 4, 2021Close114.813Mar 18, 2021Close111.250Apr 1, 2021Close113.719Apr 15, 2021Close116.344Apr 29, 2021Close114.281May 13, 2021Close112.281May 27, 2021Close114.375Jun 11, 2021Close117.469Jun 25, 2021Close117.000Jul 12, 2021Close120.781Jul 26, 2021Close122.500Aug 9, 2021Close121.781Aug 23, 2021Close124.094Sep 7, 2021Close121.250Sep 21, 2021Close124.219Oct 5, 2021Close118.406Oct 20, 2021Close117.750Nov 3, 2021Close120.344Nov 18, 2021Close120.938Dec 3, 2021Close127.500Dec 17, 2021Close124.156Jan 3, 2022Close119.500Jan 18, 2022Close115.656Feb 1, 2022Close116.781Feb 15, 2022Close111.219Mar 2, 2022Close113.563Mar 16, 2022Close109.250Mar 30, 2022Close108.500Apr 13, 2022Close101.750Apr 28, 2022Close99.469May 12, 2022Close97.281May 26, 2022Close97.531Jun 10, 2022Close93.719Jun 27, 2022Close91.906Jul 12, 2022Close94.688Jul 26, 2022Close96.281Aug 9, 2022Close96.781Aug 23, 2022Close92.063Sep 7, 2022Close89.438Sep 21, 2022Close88.438Oct 5, 2022Close84.344Oct 20, 2022Close78.250Nov 3, 2022Close79.125Nov 18, 2022Close82.000Dec 5, 2022Close86.594Dec 19, 2022Close87.063Jan 4, 2023Close84.656Jan 19, 2023Close88.781Feb 2, 2023Close89.219Feb 16, 2023Close83.500Mar 3, 2023Close83.594Mar 17, 2023Close88.375Mar 31, 2023Close87.156Apr 14, 2023Close86.438Apr 28, 2023Close87.313May 12, 2023Close85.906May 26, 2023Close82.813Jun 12, 2023Close84.094Jun 27, 2023Close84.531Jul 12, 2023Close82.719Jul 26, 2023Close83.031Aug 9, 2023Close79.969Aug 23, 2023Close78.375Sep 7, 2023Close77.438Sep 21, 2023Close74.906Oct 5, 2023Close71.063Oct 20, 2023Close68.688Nov 3, 2023Close72.469Nov 17, 2023Close74.219Dec 4, 2023Close76.344Dec 18, 2023Close81.188Jan 3, 2024Close81.344Jan 18, 2024Close77.500Feb 1, 2024Close81.094Feb 15, 2024Close77.125Mar 1, 2024Close78.156Mar 15, 2024Close77.031Mar 29, 2024Close78.219Apr 12, 2024Close75.156Apr 26, 2024Close73.281May 10, 2024Close74.938May 24, 2024Close75.750Jun 10, 2024Close75.563Jun 25, 2024Close78.156Jul 10, 2024Close76.844Jul 24, 2024Close76.125Aug 7, 2024Close79.469Aug 21, 2024Close81.719Sep 5, 2024Close82.531Sep 19, 2024Close82.250Oct 3, 2024Close80.563Oct 18, 2024Close78.125Nov 1, 2024Close75.750Nov 18, 2024Close75.063Dec 3, 2024Close77.563Dec 17, 2024Close75.563Jan 2, 2025Close73.438Jan 16, 2025Close73.063Jan 31, 2025Close73.281Feb 14, 2025Close74.781Mar 3, 2025Close77.531Mar 17, 2025Close75.875Mar 31, 2025Close76.125Apr 14, 2025Close73.563Apr 28, 2025Close75.000May 12, 2025Close72.781May 27, 2025Close72.250Jun 10, 2025Close72.375Jun 25, 2025Close73.688Jul 10, 2025Close73.500Jul 24, 2025Close72.594Aug 7, 2025Close74.219Aug 21, 2025Close73.156Sep 5, 2025Close75.063Sep 19, 2025Close75.313Oct 3, 2025Close75.750Oct 20, 2025Close77.406Nov 3, 2025Close76.031Nov 18, 2025Close75.500Dec 3, 2025Close75.750Dec 17, 2025Close74.625Jan 2, 2026Close74.313Jan 16, 2026Close74.719Feb 2, 2026Close74.000Feb 17, 2026Close76.531Mar 3, 2026Close76.344Mar 17, 2026Close74.531Mar 31, 2026Close74.031Apr 14, 2026Close74.344Apr 28, 2026Close73.563May 12, 2026Close72.563May 27, 2026Close72.750Jun 10, 2026Close72.438Jun 25, 2026Close74.406Jul 10, 2026Close72.188Jul 24, 2026Close71.094Aug 7, 2026Close70.906Aug 21, 2026Close70.313Sep 4, 2026Close70.563Sep 21, 2026Close69.938Oct 5, 2026Close66.344Oct 20, 2026Close68.563
The most recent 20 trading days of prices for 912810SA7.
DateBidOfferClose
Oct 20, 202668.60968.56368.563
Oct 19, 202668.25068.21968.031
Oct 16, 202668.73468.68868.563
Oct 15, 202668.59468.53168.469
Oct 14, 202667.20367.15667.625
Oct 13, 202667.34467.31367.281
Oct 9, 202666.79766.75066.906
Oct 8, 202666.45366.40666.938
Oct 7, 202666.20366.15666.344
Oct 6, 202666.73466.68866.594
Oct 5, 202666.25066.18866.344
Oct 2, 202666.82866.78166.656
Oct 1, 202666.73466.68866.906
Sep 30, 202666.73466.68866.594
Sep 29, 202666.76666.71966.969
Sep 28, 202667.10967.06367.250
Sep 25, 202667.54767.50067.813
Sep 24, 202668.25068.21968.000
Sep 23, 202669.00068.96968.750
Sep 22, 202669.89169.87569.938

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 912810SA7.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Feb 8, 2018Feb 15, 2018New issue$16.0bn$19.0bn2.26x3.121%
Mar 13, 2018Mar 15, 2018Reopening$13.0bn$13.0bn2.38x3.109%
Apr 12, 2018Apr 16, 2018Reopening$13.0bn$13.0bn2.41x3.044%

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.