A floating-rate note resets quarterly against the 13-week bill, so it has no yield to maturity: the cashflow schedule a yield would describe does not exist. What it has instead is a spread, the margin a buyer earns over that reference rate, and a sensitivity to that spread rather than to the level of rates.
Discount margin
-36.8 bp
Spread at auction
5.5 bp
Index rate
4.041%
Spread duration
0.008 yr
Spread DV01
0.0001
Clean price
100.003
Accrued
0.777
Dirty price
100.780
Rate duration
0.0001 yr
Rate duration is almost zero, and that is the instrument rather than a missing number: because the coupon resets, the price barely moves when the level of rates moves. Spread duration is the one that matters here. It says how much the price moves if the market demands a wider margin.
Its current margin is -2.81 standard deviations from its own typical margin.
Discount margin, 498 observations
Price history
499 trading days to Oct 28, 2022
The most recent 20 trading days of prices for 91282CAS0.
Date
Bid
Offer
Close
Oct 28, 2022
–
100.002
100.000
Oct 27, 2022
–
100.003
100.003
Oct 26, 2022
–
100.003
100.005
Oct 25, 2022
–
100.003
100.004
Oct 24, 2022
–
100.004
100.005
Oct 21, 2022
–
100.005
100.006
Oct 20, 2022
–
100.008
100.008
Oct 19, 2022
–
100.009
100.009
Oct 18, 2022
–
100.010
100.010
Oct 17, 2022
–
100.010
100.010
Oct 14, 2022
–
100.012
100.012
Oct 13, 2022
–
100.015
100.017
Oct 12, 2022
–
100.016
100.018
Oct 11, 2022
–
100.016
100.016
Oct 7, 2022
–
100.015
100.015
Oct 6, 2022
–
100.020
100.018
Oct 5, 2022
–
100.021
100.019
Oct 4, 2022
–
100.020
100.019
Oct 3, 2022
–
100.022
100.026
Sep 30, 2022
–
100.025
100.025
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.
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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