Treasury bond · Matured

912810EK0 · 8.125% due August 15, 2021

Original term
30-Year
Maturity
Aug 15, 2021
Coupon
8.125%
Pays
Semi-Annual
Dated
Aug 15, 1991
First coupon
Feb 15, 1992
Priced through
Aug 13, 2021
Analyzed through
Aug 12, 2021

Still priced, no longer analyzed. Risk numbers below are as of Aug 12, 2021, analytics stop about three months before maturity, because a security with one cashflow left does not have a meaningful yield curve exposure.

Risk, August 12, 2021

Yield to maturity
withheld
Modified duration
0.006 yr
DV01
0.0001
Convexity
0.000
Dirty price
103.955

Yield and duration are withheld this close to maturity, not missing. Inside a month a Treasury trades on settlement mechanics rather than on yield, and its price is a rounding of par, annualizing a two-day stub produces a number in the tens of percent that would be arithmetically correct and completely misleading. The price, the residual and the key rate durations below are unaffected.

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. All of it sits at 3M. For a security with a single remaining cashflow that is the true shape, not missing data.

Against the fitted curve

Priced 10.67 cents per 100 of face cheap to the curve on that day.

Shown as a price rather than a yield. This security was close enough to maturity that annualizing is meaningless, the same reason it carries no yield to maturity above, and the same difference quoted in basis points would read as an enormous mispricing rather than the few cents it is.

Yield to maturity, 3,239 observations

-1%0%1%2%3%4%5%Sep 2, 2008Aug 12, 2021Sep 2, 2008Yield to maturity4.173%Dec 18, 2008Yield to maturity2.883%Apr 7, 2009Yield to maturity3.547%Jul 23, 2009Yield to maturity4.208%Nov 6, 2009Yield to maturity3.848%Feb 26, 2010Yield to maturity3.831%Jun 10, 2010Yield to maturity3.525%Sep 24, 2010Yield to maturity2.743%Jan 12, 2011Yield to maturity3.389%Apr 29, 2011Yield to maturity3.290%Aug 15, 2011Yield to maturity2.209%Dec 1, 2011Yield to maturity1.953%Mar 20, 2012Yield to maturity2.144%Jul 3, 2012Yield to maturity1.394%Oct 18, 2012Yield to maturity1.520%Feb 7, 2013Yield to maturity1.559%May 24, 2013Yield to maturity1.552%Sep 10, 2013Yield to maturity2.489%Dec 27, 2013Yield to maturity2.466%Apr 15, 2014Yield to maturity2.142%Jul 31, 2014Yield to maturity2.137%Nov 18, 2014Yield to maturity1.909%Mar 10, 2015Yield to maturity1.802%Jun 23, 2015Yield to maturity1.940%Oct 7, 2015Yield to maturity1.563%Jan 27, 2016Yield to maturity1.533%May 12, 2016Yield to maturity1.277%Aug 26, 2016Yield to maturity1.240%Dec 14, 2016Yield to maturity2.014%Apr 3, 2017Yield to maturity1.802%Jul 19, 2017Yield to maturity1.710%Nov 2, 2017Yield to maturity1.829%Feb 21, 2018Yield to maturity2.495%Jun 7, 2018Yield to maturity2.650%Sep 21, 2018Yield to maturity2.883%Jan 11, 2019Yield to maturity2.559%Apr 30, 2019Yield to maturity2.298%Aug 14, 2019Yield to maturity1.679%Dec 2, 2019Yield to maturity1.720%Mar 19, 2020Yield to maturity0.657%Jul 6, 2020Yield to maturity0.235%Oct 20, 2020Yield to maturity0.205%Feb 8, 2021Yield to maturity0.188%May 24, 2021Yield to maturity1.049%

Price history

3,240 trading days to Aug 13, 2021

90100110120130140150160Sep 2, 2008Aug 13, 2021Sep 2, 2008Close139.219Dec 18, 2008Close155.250Apr 7, 2009Close145.469Jul 23, 2009Close136.750Nov 6, 2009Close140.156Feb 26, 2010Close139.531Jun 10, 2010Close142.188Sep 24, 2010Close150.344Jan 12, 2011Close141.844Apr 29, 2011Close141.906Aug 15, 2011Close152.813Dec 1, 2011Close154.313Mar 20, 2012Close150.688Jul 3, 2012Close157.406Oct 18, 2012Close154.344Feb 7, 2013Close152.188May 24, 2013Close150.531Sep 10, 2013Close140.313Dec 27, 2013Close139.125Apr 15, 2014Close140.406Jul 31, 2014Close138.938Nov 18, 2014Close139.125Mar 10, 2015Close138.250Jun 23, 2015Close135.656Oct 7, 2015Close136.563Jan 27, 2016Close134.938May 12, 2016Close134.719Aug 26, 2016Close133.031Dec 14, 2016Close127.094Apr 3, 2017Close126.438Jul 19, 2017Close125.125Nov 2, 2017Close122.906Feb 21, 2018Close118.656Jun 7, 2018Close116.625Sep 21, 2018Close114.438Jan 11, 2019Close113.844Apr 30, 2019Close112.938Aug 14, 2019Close112.625Dec 2, 2019Close110.688Mar 19, 2020Close110.438Jul 6, 2020Close108.719Oct 20, 2020Close106.469Feb 8, 2021Close104.094May 24, 2021Close101.594Aug 13, 2021Close100.000
The most recent 20 trading days of prices for 912810EK0.
DateBidOfferClose
Aug 13, 202199.906100.000
Aug 12, 202199.93899.938
Aug 11, 202199.93899.938
Aug 10, 202199.969100.112
Aug 9, 2021100.125100.125
Aug 6, 2021100.12599.969
Aug 5, 2021100.219100.219
Aug 4, 2021100.219100.247
Aug 3, 2021100.219100.250
Aug 2, 2021100.250100.250
Jul 30, 2021100.281100.313
Jul 29, 2021100.375100.375
Jul 28, 2021100.404100.250
Jul 27, 2021100.406100.406
Jul 26, 2021100.313100.219
Jul 23, 2021100.313100.438
Jul 22, 2021100.531100.531
Jul 21, 2021100.531100.531
Jul 20, 2021100.563100.563
Jul 19, 2021100.563100.563

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.

Auction

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 912810EK0.
Auction dateIssuedTypeOfferedAcceptedBid to coverHigh yield
Aug 8, 1991Aug 15, 1991New issue$12.0bn$12.2bn8.190%

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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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.