How did the latest 20-year 1-month Treasury bond auction go?

The last 20-year 1-month bond auction was on 8 January 1986; Treasury published no result for it.

Discontinued Treasury has not auctioned this term since 8 January 1986.

High yield

9.450%

8 January 1986 · Auction results

Sold

$4.75 billion

$4.75 billion offered

The latest auction against its own history

Each measure against earlier 20-year 1-month bond auctions: how many were higher and lower, and their median
Measure	This auction	Window	Higher	Lower	Median
High yield	9.450	Last 12 auctions	12 of 12	0 of 12	11.805
High yield	9.450	All 18 since 6 January 1981	18 of 18	0 of 18	11.880
High minus median, basis points	2.0	Last 12 auctions	4 of 12	5 of 12	2.0
High minus median, basis points	2.0	All 18 since 6 January 1981	8 of 18	5 of 18	2.0

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What this number cannot tell you

Why it sold where it did. Results show what was bid and accepted, not the reasons behind any bid.
The auction tail as markets quote it. That compares the high yield with the when-issued yield just before bids closed, a market price that is not public; we show high minus median instead, a different measure.
Who the bidders are. Indirect bidders include foreign and international accounts bidding through the New York Fed and investors bidding through dealers; Treasury does not publish names.
Demand on another day. A bid-to-cover ratio counts bids at one auction against the amount offered, and the amount offered changes from auction to auction.

Auctions with results since 6 January 1981: 19.

20-year 1-month bond auctions, newest first; dated links open an auction's own page
Auction	Offered as	High yield, %	Bid-to-cover	Offered, $ billion	Sold, $ billion	Indirect, %	Direct, %	Dealers, %	High − median, bp
8 Jan 1986	20-Year 1-Month	9.450	–	4.750	4.750	–	–	–	2.0
31 Oct 1985	19-Year 9-Month, reopening	10.490	–	4.750	4.755	–	–	–	2.0
27 Jun 1985	20-Year 1-Month	10.760	–	4.500	4.510	–	–	–	1.0
28 Mar 1985	20-Year 1-Month	12.050	–	4.250	4.261	–	–	–	1.0
3 Jan 1985	19-Year 10-Month, reopening	11.860	–	4.250	4.283	–	–	–	0.0
23 Oct 1984	20-Year 1-Month	11.750	–	4.000	4.005	–	–	–	6.0
5 Jul 1984	20-Year 1-Month	13.820	–	4.000	4.001	–	–	–	6.0
29 Mar 1984	20-Year 1-Month	12.500	–	3.750	3.752	–	–	–	11.0
29 Dec 1983	19-Year 10-Month, reopening	11.960	–	3.750	3.754	–	–	–	1.0
22 Sep 1983	20-Year 1-Month	11.900	–	3.500	3.508	–	–	–	0.0
23 Jun 1983	20-Year 1-Month	11.240	–	3.500	3.503	–	–	–	2.0
24 Mar 1983	20-Year 1-Month	10.840	–	3.250	3.251	–	–	–	3.0

Show 7 more rows

20-year 1-month bond auctions, newest first; dated links open an auction's own page (continued)
Auction	Offered as	High yield, %	Bid-to-cover	Offered, $ billion	Sold, $ billion	Indirect, %	Direct, %	Dealers, %	High − median, bp
22 Dec 1982	20-Year 1-Month	10.770	–	3.000	3.006	–	–	–	2.0
23 Sep 1982	20-Year 1-Month	11.790	–	2.750	2.750	–	–	–	11.0
30 Dec 1981	20-Year 1-Month	14.270	–	1.750	1.750	–	–	–	2.0
30 Sep 1981	20-Year 1-Month	15.820	–	1.750	1.751	–	–	–	4.0
25 Jun 1981	20-Year 1-Month	13.490	–	1.750	1.751	–	–	–	4.0
26 Mar 1981	20-Year 1-Month	13.260	–	1.750	1.750	–	–	–	5.0
6 Jan 1981	20-Year 1-Month	11.840	–	1.500	1.501	–	–	–	2.0

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Sources and licence

U.S. Treasury, Bureau of the Fiscal Service, Fiscal Data (source). Licence: Public domain, a work of the US federal government