Treasury Doubled Long-Bond Buybacks. The 20-Year Sold at 5.204%

Why It Matters

The U.S. Department of the Treasury said Wednesday morning that it is doubling the size of liquidity support buyback operations in two sectors: 10-year to 20-year and 20-year to 30-year. The per-operation ceiling goes from $2 billion to at least $4 billion, effective September 9 through November 4. Treasury’s own tentative buyback schedule, published August 5, lists seven operations in those sectors inside that window, four in the 10-to-20-year bucket and three in the 20-to-30-year bucket.

That split is the part worth holding onto. Seven operations at $2 billion of extra headroom each is $14 billion of added capacity, a total Bloomberg also published. Only $6 billion of it lands in the 20-to-30-year sector, where the 19-year-high yields actually sit. The first operation there is September 24, which is 36 days after the announcement that moved the market. Gennadiy Goldberg of TD Securities called it a “warning shot across the market’s bow” in comments to Axios.

The market did not wait 36 days for a test. Treasury auctioned a new 20-year bond the same afternoon. The Market Context reported on August 17 that the 30-year yield closed at 5.309% while its newest bond had sold at 5.216%. Two days later the same tension resolved the other way, and the reason is knowable.

The auction stopped at the exact midpoint of July and the all-time high

The 20-year bond sold Wednesday, CUSIP 912810UX4, stopped at a high yield of 5.204%. July’s 20-year auction stopped at 5.163%, per the auction history compiled by Helious from TreasuryDirect records. The highest yield a 20-year auction has ever fetched is 5.245%, set on October 18, 2023. Wednesday’s result sits 4.1 basis points above July and 4.1 basis points below the record. It is the arithmetic midpoint of the two, to the tenth of a basis point.

ZeroHedge, reading the results as they crossed, reported that the auction tailed the when-issued yield by half a basis point, meaning it had to concede yield to clear. Bid-to-cover was 2.53, against 2.64 in July and 2.75 in June. The twelve-auction average is 2.64, so Wednesday came in 0.11 under it, and 2.53 is the weakest reading since February’s 2.36. Indirect bidders, the category that includes foreign accounts, took 62.9% against 69.1% a month ago. Direct bidders absorbed 24.6%, up 8.4 points, and dealers were left with 12.5%.

Put the two numbers side by side and the day resolves. The announcement pulled the 20-year yield down enough that the auction cleared below the record rather than above it. It did not pull demand up. A record-adjacent yield with the softest cover since February is a price concession that found buyers, not a market that changed its mind.

Every shorter nominal bucket on the same schedule was already at $4 billion

Treasury’s August 5 buyback schedule sets a maximum purchase amount for each operation. The 1-month-to-2-year, 2-to-3-year, 3-to-5-year, 5-to-7-year and 7-to-10-year nominal coupon operations all carry a $4 billion ceiling. Cash management operations carry $12.5 billion. Only the 10-to-20-year and 20-to-30-year operations were capped at $2 billion.

Before Wednesday, in other words, Treasury’s buyback program could absorb twice as much five-to-seven-year paper in a single operation as it could thirty-year paper. The sector under the most pressure was the smallest bucket on the nominal curve. Wednesday’s change does not create a new tier of support. It lifts the long end to the size every shorter nominal sector already had. That is also why Treasury could do it in a two-paragraph statement rather than wait for the November 4 refunding.

Treasury framed it that way itself, citing “consistent strong sponsorship from market participants” and the volume of high-quality offers it routinely receives in longer-dated operations. The statement describes a program that had been leaving offered bonds on the table, not one inventing new demand.

Three buyback operations sit against four bond auctions in the same window

Treasury’s tentative auction schedule places four sales of 20-year and 30-year paper between September 9 and November 4. Two are 30-year reopenings, on September 10 and October 8. The other two are 20-year reopenings, on September 15 and October 21. Over the identical window the buyback schedule places three operations in that sector, with a combined ceiling of $12 billion once the new size applies.

For scale on what a single one of those auctions carries, the August 13 30-year auction sold $25 billion. Three long-end buyback operations at their new maximum come to 48% of that one sale. Treasury has not yet published September and October auction sizes. It also said an updated tentative buyback schedule will be released at a later date, so the operation dates above are the ones currently on the calendar.

The rest of the curve moved with the long end. The 10-year note fell 6 basis points to 4.647%, per CNBC. Equities took the relief: the S&P 500 closed at 7,707.98, up 0.21%, the Nasdaq Composite at 26,331.09, up 0.16%, and the Dow Jones Industrial Average at 53,463.05, up 119.65 points. That ends a three-day losing run for the S&P 500. The Market Context reported on August 16 that AMD priced $4.75 billion of notes at a blended 5.05%, which is what corporate borrowers have been paying alongside these government yields.

Three outlets carried three different 30-year readings and the cause is the clock

CNBC reported the 30-year bond giving up 9 basis points to 5.196%. Axios published a per-minute chart running from August 16 to August 19 with a 5.183% low and a 5.194% print on Wednesday, and put the yield at “around 5.2%” at midday. Treasury’s own constant maturity series marked the 30-year at 5.28% on Tuesday, and had not yet posted Wednesday’s reading when this article was written.

None of those is wrong. The Treasury market trades until 5 p.m. ET, so a midday quote, a 4:52 p.m. quote and a par-curve fit taken at a fixed hour describe different moments of the same session. The constant maturity series is also a fitted curve rather than a quote on the current 30-year bond, which is why it can sit above an on-the-run reading. This article uses the closing figure and labels it as such. The Market Context reported on August 16 that three of five voting Federal Reserve presidents wanted a rate increase at the July meeting. Minutes from that meeting landed Wednesday afternoon, an hour after the auction results crossed.

What to watch

1. The updated tentative buyback schedule, which Treasury said it will release at a later date. Read the maximum purchase amount column for the 10-to-20-year and 20-to-30-year rows, and check whether the operation count in each sector matches the four and three now on the August 5 version.

2. The September 10 buyback operation in the 10-to-20-year sector, the first at the new size. The results release names the par amount actually accepted against the offers received, which is the number that shows whether the higher ceiling is being used or merely posted.

3. The September 24 buyback operation in the 20-to-30-year sector, the first at the new size in the sector carrying the highest yields.

4. The September 15 20-year reopening of CUSIP 912810UX4. Compare its high yield and bid-to-cover against Wednesday’s 5.204% and 2.53, and read the indirect bidder share against Wednesday’s 62.9%.

5. Treasury’s November 4 Quarterly Refunding statement, which the department said will carry more information about future buyback sizes.