Still priced, no longer analyzed. Risk numbers below are as of Nov 28, 2011, analytics stop about three months before maturity, because a security with one cashflow left does not have a meaningful yield curve exposure.
Risk, November 28, 2011
Yield to maturity
withheld
Modified duration
0.003 yr
DV01
0.0000
Convexity
0.000
Dirty price
102.238
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 1.19 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, 812 observations
Price history
813 trading days to Nov 29, 2011
The most recent 20 trading days of prices for 912828GA2.
Date
Bid
Offer
Close
Nov 29, 2011
–
100.000
100.000
Nov 28, 2011
–
100.000
100.000
Nov 25, 2011
–
100.000
100.000
Nov 23, 2011
–
100.063
100.063
Nov 22, 2011
–
100.094
100.094
Nov 21, 2011
–
100.094
100.094
Nov 18, 2011
–
100.125
100.094
Nov 17, 2011
–
100.156
100.156
Nov 16, 2011
–
100.156
100.156
Nov 15, 2011
–
100.156
100.156
Nov 14, 2011
–
100.188
100.188
Nov 10, 2011
–
100.188
100.188
Nov 9, 2011
–
100.219
100.219
Nov 8, 2011
–
100.250
100.250
Nov 7, 2011
–
100.250
100.250
Nov 4, 2011
–
100.281
100.250
Nov 3, 2011
–
100.313
100.313
Nov 2, 2011
–
100.313
100.313
Nov 1, 2011
–
100.344
100.344
Oct 31, 2011
–
100.344
100.344
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.
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.