Treasury bond

912810RX8 · 3% due May 15, 2047

Original term
30-Year
Maturity
May 15, 2047
Coupon
3.000%
Pays
Semi-Annual
Dated
May 15, 2017
First coupon
Nov 15, 2017
Priced through
Sep 10, 2026
Analyzed through
Sep 10, 2026

Statement of August 31, 2026

Amount outstanding
$40.69bn
Held stripped
$5.35bn
Share stripped
13.14%

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 10, 2026

Yield to maturity
5.445%
Modified duration
13.781 yr
DV01
0.0976
Convexity
249.115
Dirty price
70.845

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 13.989 years against a modified duration of 13.781.

Against the fitted curve

Priced 0.2 bp cheap to the curve on that day, 1.93 cents per 100 of face.

That is -0.55 standard deviations from its own typical residual.

Yield to maturity, 2,334 observations

1%2%3%4%5%6%May 15, 2017Sep 10, 2026May 15, 2017Yield to maturity3.005%Aug 1, 2017Yield to maturity2.856%Oct 18, 2017Yield to maturity2.848%Jan 5, 2018Yield to maturity2.808%Mar 26, 2018Yield to maturity3.085%Jun 12, 2018Yield to maturity3.092%Aug 28, 2018Yield to maturity3.031%Nov 15, 2018Yield to maturity3.361%Feb 6, 2019Yield to maturity3.030%Apr 25, 2019Yield to maturity2.936%Jul 12, 2019Yield to maturity2.632%Sep 27, 2019Yield to maturity2.123%Dec 17, 2019Yield to maturity2.312%Mar 6, 2020Yield to maturity1.274%May 22, 2020Yield to maturity1.335%Aug 10, 2020Yield to maturity1.213%Oct 27, 2020Yield to maturity1.492%Jan 15, 2021Yield to maturity1.772%Apr 5, 2021Yield to maturity2.332%Jun 21, 2021Yield to maturity2.101%Sep 7, 2021Yield to maturity1.956%Nov 24, 2021Yield to maturity1.979%Feb 11, 2022Yield to maturity2.318%May 2, 2022Yield to maturity3.236%Jul 20, 2022Yield to maturity3.415%Oct 5, 2022Yield to maturity4.045%Dec 23, 2022Yield to maturity4.033%Mar 15, 2023Yield to maturity3.825%May 31, 2023Yield to maturity4.018%Aug 17, 2023Yield to maturity4.600%Nov 3, 2023Yield to maturity4.976%Jan 24, 2024Yield to maturity4.586%Apr 10, 2024Yield to maturity4.782%Jun 27, 2024Yield to maturity4.582%Sep 13, 2024Yield to maturity4.118%Dec 3, 2024Yield to maturity4.587%Feb 21, 2025Yield to maturity4.787%May 8, 2025Yield to maturity4.958%Jul 28, 2025Yield to maturity5.041%Oct 14, 2025Yield to maturity4.665%Jan 2, 2026Yield to maturity4.901%Mar 23, 2026Yield to maturity5.016%Jun 8, 2026Yield to maturity5.110%Aug 25, 2026Yield to maturity5.222%Sep 10, 2026Yield to maturity5.445%

Price history

2,334 trading days to Sep 10, 2026

6080100120140160May 15, 2017Sep 10, 2026May 15, 2017Close99.906Aug 1, 2017Close102.875Oct 18, 2017Close103.031Jan 5, 2018Close103.813Mar 26, 2018Close98.375Jun 12, 2018Close98.250Aug 28, 2018Close99.406Nov 15, 2018Close93.406Feb 6, 2019Close99.438Apr 25, 2019Close101.219Jul 12, 2019Close107.219Sep 27, 2019Close118.250Dec 17, 2019Close113.906Mar 6, 2020Close139.563May 22, 2020Close137.594Aug 10, 2020Close140.719Oct 27, 2020Close132.969Jan 15, 2021Close125.750Apr 5, 2021Close113.000Jun 21, 2021Close117.875Sep 7, 2021Close121.000Nov 24, 2021Close120.344Feb 11, 2022Close112.969May 2, 2022Close95.969Jul 20, 2022Close93.094Oct 5, 2022Close83.813Dec 23, 2022Close84.063Mar 15, 2023Close87.063May 31, 2023Close84.438Aug 17, 2023Close77.031Nov 3, 2023Close72.781Jan 24, 2024Close77.438Apr 10, 2024Close75.250Jun 27, 2024Close77.719Sep 13, 2024Close83.625Dec 3, 2024Close77.906Feb 21, 2025Close75.719May 8, 2025Close73.938Jul 28, 2025Close73.188Oct 14, 2025Close77.500Jan 2, 2026Close75.000Mar 23, 2026Close73.906Jun 8, 2026Close73.063Aug 25, 2026Close72.063Sep 10, 2026Close69.875
The most recent 20 trading days of prices for 912810RX8.
DateBidOfferClose
Sep 10, 202670.25070.21969.875
Sep 9, 202670.73470.68870.906
Sep 8, 202671.28171.25071.156
Sep 4, 202671.31371.28171.250
Sep 3, 202671.42271.40671.219
Sep 2, 202671.00070.96971.000
Sep 1, 202671.28171.25070.969
Aug 31, 202671.14171.12571.250
Aug 28, 202671.85971.81371.531
Aug 27, 202671.96971.93871.813
Aug 26, 202671.95371.93871.906
Aug 25, 202672.01672.00072.063
Aug 24, 202671.62571.59471.469
Aug 21, 202671.12571.09471.000
Aug 20, 202671.28171.25071.438
Aug 19, 202671.62571.59471.750
Aug 18, 202670.62570.59470.750
Aug 17, 202670.75070.71970.500
Aug 14, 202670.96970.93871.000
Aug 13, 202671.50071.46971.500

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 912810RX8.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
May 11, 2017May 15, 2017New issue$15.0bn$20.0bn2.19x3.050%
Jun 13, 2017Jun 15, 2017Reopening$12.0bn$12.0bn2.32x2.870%
Jul 13, 2017Jul 17, 2017Reopening$12.0bn$12.3bn2.31x2.936%

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.