Treasury bond

912810TA6 · 1.75% due August 15, 2041

Original term
20-Year
Maturity
Aug 15, 2041
Coupon
1.750%
Pays
Semi-Annual
Dated
Aug 15, 2021
First coupon
Feb 15, 2022
Priced through
Sep 10, 2026
Analyzed through
Sep 10, 2026

Statement of August 31, 2026

Amount outstanding
$78.07bn
Held stripped
$113.5m
Share stripped
0.15%

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
5.289%
Modified duration
12.283 yr
DV01
0.0785
Convexity
174.700
Dirty price
63.910

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 12.560 years against a modified duration of 12.283.

Against the fitted curve

Priced 0.9 bp rich to the curve on that day, 7.34 cents per 100 of face.

That is -3.16 standard deviations from its own typical residual.

Yield to maturity, 1,258 observations

1%2%3%4%5%6%Aug 31, 2021Sep 10, 2026Aug 31, 2021Yield to maturity1.846%Oct 13, 2021Yield to maturity1.999%Nov 24, 2021Yield to maturity2.036%Jan 6, 2022Yield to maturity2.126%Feb 17, 2022Yield to maturity2.382%Mar 31, 2022Yield to maturity2.618%May 12, 2022Yield to maturity3.265%Jun 24, 2022Yield to maturity3.574%Aug 5, 2022Yield to maturity3.348%Sep 16, 2022Yield to maturity3.914%Oct 28, 2022Yield to maturity4.487%Dec 12, 2022Yield to maturity3.933%Jan 25, 2023Yield to maturity3.781%Mar 8, 2023Yield to maturity4.165%Apr 18, 2023Yield to maturity3.956%May 30, 2023Yield to maturity4.117%Jul 12, 2023Yield to maturity4.176%Aug 22, 2023Yield to maturity4.635%Oct 3, 2023Yield to maturity5.198%Nov 14, 2023Yield to maturity4.837%Dec 27, 2023Yield to maturity4.126%Feb 8, 2024Yield to maturity4.508%Mar 21, 2024Yield to maturity4.566%May 1, 2024Yield to maturity4.853%Jun 12, 2024Yield to maturity4.554%Jul 25, 2024Yield to maturity4.590%Sep 5, 2024Yield to maturity4.106%Oct 17, 2024Yield to maturity4.451%Nov 29, 2024Yield to maturity4.461%Jan 13, 2025Yield to maturity5.069%Feb 25, 2025Yield to maturity4.586%Apr 7, 2025Yield to maturity4.581%May 16, 2025Yield to maturity4.918%Jun 30, 2025Yield to maturity4.757%Aug 11, 2025Yield to maturity4.772%Sep 22, 2025Yield to maturity4.666%Nov 3, 2025Yield to maturity4.602%Dec 16, 2025Yield to maturity4.709%Jan 29, 2026Yield to maturity4.729%Mar 12, 2026Yield to maturity4.784%Apr 22, 2026Yield to maturity4.793%Jun 3, 2026Yield to maturity4.913%Jul 16, 2026Yield to maturity5.006%Aug 26, 2026Yield to maturity5.066%Sep 10, 2026Yield to maturity5.289%

Price history

1,258 trading days to Sep 10, 2026

5060708090100Aug 31, 2021Sep 10, 2026Aug 31, 2021Close98.406Oct 13, 2021Close95.938Nov 24, 2021Close95.375Jan 6, 2022Close94.000Feb 17, 2022Close90.188Mar 31, 2022Close86.875May 12, 2022Close78.469Jun 24, 2022Close74.875Aug 5, 2022Close77.656Sep 16, 2022Close71.281Oct 28, 2022Close65.500Dec 12, 2022Close71.313Jan 25, 2023Close73.094Mar 8, 2023Close69.125Apr 18, 2023Close71.438May 30, 2023Close69.875Jul 12, 2023Close69.406Aug 22, 2023Close65.063Oct 3, 2023Close60.188Nov 14, 2023Close63.500Dec 27, 2023Close70.438Feb 8, 2024Close66.844Mar 21, 2024Close66.438May 1, 2024Close63.969Jun 12, 2024Close66.844Jul 25, 2024Close66.656Sep 5, 2024Close71.438Oct 17, 2024Close68.250Nov 29, 2024Close68.313Jan 13, 2025Close63.063Feb 25, 2025Close67.469Apr 7, 2025Close67.656May 16, 2025Close64.844Jun 30, 2025Close66.406Aug 11, 2025Close66.438Sep 22, 2025Close67.531Nov 3, 2025Close68.250Dec 16, 2025Close67.469Jan 29, 2026Close67.469Mar 12, 2026Close67.156Apr 22, 2026Close67.250Jun 3, 2026Close66.406Jul 16, 2026Close65.813Aug 26, 2026Close65.500Sep 10, 2026Close63.781
The most recent 20 trading days of prices for 912810TA6.
DateBidOfferClose
Sep 10, 202664.12564.06363.781
Sep 9, 202664.53164.46964.656
Sep 8, 202665.00064.93864.844
Sep 4, 202665.03164.96964.938
Sep 3, 202665.10965.06364.938
Sep 2, 202664.73464.68864.719
Sep 1, 202664.95364.90664.688
Aug 31, 202664.89164.84464.938
Aug 28, 202665.45365.37565.156
Aug 27, 202665.60965.56365.406
Aug 26, 202665.57865.53165.500
Aug 25, 202665.62565.56365.656
Aug 24, 202665.29765.25065.156
Aug 21, 202664.89164.84464.781
Aug 20, 202665.01664.96965.094
Aug 19, 202665.28165.21965.344
Aug 18, 202664.48464.43864.531
Aug 17, 202664.57864.53164.344
Aug 14, 202664.73464.68864.719
Aug 13, 202665.10965.06365.094

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 912810TA6.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Aug 18, 2021Aug 31, 2021New issue$27.0bn$30.4bn2.44x1.850%
Sep 21, 2021Sep 30, 2021Reopening$24.0bn$26.9bn2.36x1.795%
Oct 20, 2021Nov 1, 2021Reopening$24.0bn$26.4bn2.25x2.100%

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.