> ## Content Index > Fetch the complete content index at: https://the-long-horizon.ghost.io/llms.txt > Use this file to discover other available public pages before exploring further. # Tuesday's bond auction went badly. - URL: https://the-long-horizon.ghost.io/tuesdays-bond-auction-went-badly/ - Published: 2026-09-16T21:00:31.000Z - Updated: 2026-09-16T21:00:31.000Z - Description: Foreign and indirect bidders took 52.5%, a record low. Twenty-year money now costs Treasury more than thirty-year. - Author: Jonathan Morgan Tuesday's bond auction went badly. ## **The Horizon** Two stretches of future time went on offer in Washington this month, one running twenty years and one running thirty. Committing money across the longer of the two is now the cheaper arrangement of the pair. That ordering is backwards, and it has held for most of two weeks. Tuesday afternoon put a cleared price on the shorter of the two horizons, and the price was the highest paid at any auction in that security's modern life. The yield stamped on that paper runs to the 2040s and does not move again. Nothing published or voted on afterwards changes a dollar of what it pays. ## **The Event** Treasury reopened the 20-year bond on Tuesday, September 15, at a size of $13 billion. The auction cleared at a high yield of 5.420%. That is the highest yield any 20-year auction has produced since the security was reintroduced in 2020\. August's reopening of the same sector cleared at 5.204%. Demand came in under what the market had marked. The when-issued yield stood at 5.400% going in, so the auction tailed by two basis points, and the bid-to-cover ratio finished at 2.57. Indirect bidders, the group carrying most foreign official demand, were awarded 52.5% of the issue. That is the smallest share recorded at any 20-year auction, against 62.9% in August. Direct bidders took 30.7% and primary dealers the remaining 16.9%. The paper stayed in the room rather than leaving the country. Treasury's own par yield curve puts the 20-year at 5.40% on Tuesday and the 30-year at 5.36%. On September 8 the same table read 5.26% and 5.25%. The twenty has matched or exceeded the thirty in every session since September 4\. Over those seven sessions the distance between them widened fourfold. Sponsored ### **P.I.P. partnerships went up 7.2%. The S&P lost 4.1** On February 28, Iran's Supreme Leader was killed. In the aftermath of that assassination… - The Strait of Hormuz closed. - 20% of global oil was blocked. - Oil prices hit $117 a barrel. But through it all… The 11 partnerships inside the Patriot Income Plan \[P.I.P.\] went up 7.2%, on average. The S&P lost 4.1%. Even more impressive… All 11 partnerships inside P.I.P. kept paying distributions to investors. Together they produced 79% total combined gains. Why? 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An extra decade of borrowing now costs four basis points less than the shorter commitment, which is the reverse of how a lender is normally compensated for waiting. Part of the explanation is that the twenty-year sector has no settled owner. A thirty-year bond moves further per dollar committed, so buyers matching very distant obligations reach past the twenty to get it. The composition of Tuesday's award carries further than the yield does. A bond sitting in a foreign official account is held for reserve management and turns over slowly, while the same bond inside a domestic fund is held against redemptions. A record low indirect share means the marginal owner of this sector changed character in a single afternoon. Ownership determines how a bond behaves on the day it has to be liquidated, and no yield quote carries that property. The two basis point tail did something no household transaction can do. Bonds were awarded below the price the market had been carrying, and every existing holder of that sector was remarked the same afternoon. A broad Treasury index fund never entered a bid on Tuesday and never had to. The auction is where the sector's price gets discovered, so the mark travels into the fund regardless. The week's repricing was not spread evenly across the curve. Between September 8 and September 15 the two-year yield rose 28 basis points and the thirty-year rose 11. For a portfolio whose obligations sit thirty years out, a week of very large moves shifted the relevant reference price by eleven basis points. The near end of the curve carried two and a half times as much of the move. A third consequence runs through borrowers who are not the federal government at all. Long-dated corporate and municipal issues price at a spread over the nearest Treasury maturity, so when twenty-year money costs more than thirty-year money, the cheaper benchmark for a new long bond is the further one. Issuers who extend rather than shorten lengthen the duration of the indexes their bonds land in. That reaches a bond fund holder through a benchmark rule, decided by nobody the holder will ever meet. ## **The Watch** What follows is ordered by the machinery that sets each price rather than by the calendar. The first of the four is already fixed. Tuesday's bond settles on Friday, September 18\. From that morning the 5.420% is a contract term, and no release, vote or revision reaches it again. The second price has no date attached to it at all. The same paper is remarked in every session between Friday and its maturity, and those marks are what a fund statement reports. The third is set by a vote rather than by a trade, this afternoon at 2:00 p.m. Eastern, with a quarterly set of committee projections published alongside it. Nothing in either document is knowable before it is published. The fourth is set by auction, and it arrives twice. A 10-year TIPS reopening goes off Thursday, September 17, and the next 20-year bond is announced October 15 and auctioned October 21. October 21 puts the same question to the same room, with a month of answers in between. Whether 52.5% was one poor afternoon or a new floor is the part no yield quote will ever show.