Treasury bond

912810PW2 · 4.375% due February 15, 2038

Original term
30-Year
Maturity
Feb 15, 2038
Coupon
4.375%
Pays
Semi-Annual
Dated
Feb 15, 2008
First coupon
Aug 15, 2008
Priced through
Sep 10, 2026
Analyzed through
Sep 10, 2026

Statement of August 31, 2026

Amount outstanding
$22.53bn
Held stripped
$663.1m
Share stripped
2.94%

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
4.945%
Modified duration
8.795 yr
DV01
0.0839
Convexity
94.090
Dirty price
95.383

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 9 of twelve buckets, summing to 8.975 years against a modified duration of 8.795.

Against the fitted curve

Priced 11.4 bp rich to the curve on that day, 95.50 cents per 100 of face.

That is -0.48 standard deviations from its own typical residual.

Yield to maturity, 4,509 observations

0%1%2%3%4%5%6%Sep 2, 2008Sep 10, 2026Sep 2, 2008Yield to maturity4.356%Feb 2, 2009Yield to maturity3.493%Jun 30, 2009Yield to maturity4.321%Nov 27, 2009Yield to maturity4.209%Apr 27, 2010Yield to maturity4.542%Sep 21, 2010Yield to maturity3.741%Feb 18, 2011Yield to maturity4.672%Jul 19, 2011Yield to maturity4.135%Dec 15, 2011Yield to maturity2.819%May 14, 2012Yield to maturity2.793%Oct 10, 2012Yield to maturity2.704%Mar 13, 2013Yield to maturity3.054%Aug 8, 2013Yield to maturity3.514%Jan 8, 2014Yield to maturity3.771%Jun 6, 2014Yield to maturity3.293%Nov 4, 2014Yield to maturity2.904%Apr 7, 2015Yield to maturity2.394%Sep 1, 2015Yield to maturity2.754%Feb 2, 2016Yield to maturity2.398%Jun 29, 2016Yield to maturity1.948%Nov 28, 2016Yield to maturity2.747%Apr 27, 2017Yield to maturity2.718%Sep 22, 2017Yield to maturity2.585%Feb 22, 2018Yield to maturity3.085%Jul 20, 2018Yield to maturity2.952%Dec 19, 2018Yield to maturity2.864%May 20, 2019Yield to maturity2.604%Oct 16, 2019Yield to maturity1.979%Mar 17, 2020Yield to maturity1.320%Aug 12, 2020Yield to maturity0.936%Jan 12, 2021Yield to maturity1.455%Jun 9, 2021Yield to maturity1.852%Nov 4, 2021Yield to maturity1.699%Apr 5, 2022Yield to maturity2.554%Sep 1, 2022Yield to maturity3.321%Feb 2, 2023Yield to maturity3.447%Jun 30, 2023Yield to maturity3.805%Nov 28, 2023Yield to maturity4.482%Apr 25, 2024Yield to maturity4.719%Sep 23, 2024Yield to maturity3.816%Feb 24, 2025Yield to maturity4.464%Jul 22, 2025Yield to maturity4.503%Dec 18, 2025Yield to maturity4.239%May 18, 2026Yield to maturity4.664%Sep 10, 2026Yield to maturity4.945%

Price history

4,509 trading days to Sep 10, 2026

80100120140160180Sep 2, 2008Sep 10, 2026Sep 2, 2008Close100.313Feb 2, 2009Close116.000Jun 30, 2009Close100.875Nov 27, 2009Close102.719Apr 27, 2010Close97.375Sep 21, 2010Close110.813Feb 18, 2011Close95.469Jul 19, 2011Close103.844Dec 15, 2011Close128.656May 14, 2012Close128.906Oct 10, 2012Close130.500Mar 13, 2013Close122.938Aug 8, 2013Close114.063Jan 8, 2014Close109.500Jun 6, 2014Close117.688Nov 4, 2014Close124.750Apr 7, 2015Close134.719Sep 1, 2015Close127.000Feb 2, 2016Close133.688Jun 29, 2016Close142.656Nov 28, 2016Close126.031Apr 27, 2017Close126.188Sep 22, 2017Close128.219Feb 22, 2018Close119.125Jul 20, 2018Close121.031Dec 19, 2018Close122.156May 20, 2019Close126.125Oct 16, 2019Close136.688Mar 17, 2020Close148.594Aug 12, 2020Close155.406Jan 12, 2021Close144.031Jun 9, 2021Close136.063Nov 4, 2021Close137.906Apr 5, 2022Close123.625Sep 1, 2022Close112.656Feb 2, 2023Close110.813Jun 30, 2023Close106.344Nov 28, 2023Close98.875Apr 25, 2024Close96.531Sep 23, 2024Close105.813Feb 24, 2025Close99.125Jul 22, 2025Close98.781Dec 18, 2025Close101.281May 18, 2026Close97.406Sep 10, 2026Close95.063
The most recent 20 trading days of prices for 912810PW2.
DateBidOfferClose
Sep 10, 202695.50095.40695.063
Sep 9, 202696.10996.00096.125
Sep 8, 202696.56396.46996.406
Sep 4, 202696.65696.56396.531
Sep 3, 202696.85996.78196.594
Sep 2, 202696.42296.34496.375
Sep 1, 202696.68896.59496.375
Aug 31, 202696.70396.62596.719
Aug 28, 202697.23497.12596.906
Aug 27, 202697.56397.46997.344
Aug 26, 202697.56397.46997.406
Aug 25, 202697.62597.53197.625
Aug 24, 202697.28197.18897.031
Aug 21, 202696.85996.78196.750
Aug 20, 202697.12597.03197.125
Aug 19, 202697.46997.37597.500
Aug 18, 202696.87596.78196.875
Aug 17, 202696.98496.90696.719
Aug 14, 202697.17297.09497.063
Aug 13, 202697.53197.43897.469

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.

2 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 912810PW2.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Feb 7, 2008Feb 15, 2008New issue$9.0bn$13.3bn1.82x4.449%
May 8, 2008May 15, 2008Reopening$6.0bn$9.2bn2.69x4.599%

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.