Treasury's Tripled Buyback Fails to Pull Long Yields Down
Scott Bessent tripled the size of the Treasury's long-bond buyback and the market answered by sending yields to multi-year highs.
Assembled by Claude from 11 sources at 10 outlets · Thursday, September 10, 2026, Evening edition, 5:16 PM EDT · no human byline
What happened
The Treasury Department said it would buy back up to three times its usual amount of long-term debt, part of the Trump administration's continuing effort to bring borrowing costs down semafor.com. The first operation was set to purchase up to $6 billion of older Treasury securities with maturities between 10 and 20 years investinglive.com. That was more than the $4 billion minimum Treasury Secretary Scott Bessent had outlined last month as part of an effort to improve liquidity in long-dated debt reuters.com. GoldSeek described the programme as triple the normal level goldseek.com.
Yields went the other way. Treasury yields jumped to their highest levels in almost three years on Wednesday, after the $6bn buyback plan was announced ft.com. The 10-year yield reached 4.85%, its highest since November 2023, and stocks fell startupfortune.com. By Thursday the 10-year topped 4.9%, the highest since 2023, as US oil prices rose and lifted inflation fears cnbc.com. The gap between US and Chinese government borrowing costs widened to the widest level ever recorded ft.com.
Why it matters to investors
The strain showed at the long end. The Treasury sold $22 billion of 30-year bonds at a high yield of 5.308% investinglive.com. That was up from 5.216 per cent at the previous sale last month, and it came as a global bond sell-off reignited with oil jumping to $107 ft.com.
Demand for shorter paper was not the problem. The 10-year auction drew the highest bid-to-cover ratio in a decade, with the $39 billion reopening attracting the strongest demand since 2016 cryptobriefing.com. GoldSeek also logged strong demand at that 10-year sale goldseek.com.
What to watch
The verdicts on the first round were uniform. Bloomberg wrote that traders won the opening round of the yield showdown with Bessent, and that his challenge to traders is off to a rocky start bloomberg.com. Reuters described bond investors as edgy and unconsoled by the big buyback reuters.com. Axios said the buyback failed to shock and awe the bond market, and that Bessent's unusual showdown with the markets could itself be adding to the move axios.com.
One account put the day at its plainest: the $6 billion buyback backfired and yields jumped, with Stanley Druckenmiller warning about the position the Treasury secretary now occupies startupfortune.com. The next tests are the pace of the buyback operations, which are meant to run at the tripled size semafor.com, and oil, which CNBC tied directly to Thursday's move in yields cnbc.com.
Sources
- bloomberg.com: Traders Win First Round in Yield Showdown With Bessent - Bloomberg.com (2026-09-10)
- ft.com: US-China borrowing costs diverge to widest level ever - Financial Times (2026-09-10)
- cnbc.com: 10-year Treasury yield tops 4.9%, highest since 2023, as oil surge raises inflation fears (2026-09-10)
- reuters.com: Edgy bond investors unconsoled by Bessent's big buyback | Reuters (2026-09-10)
- axios.com: Treasury buyback fails to shock and awe the bond market - Axios (2026-09-10)
- ft.com: Global bond sell-off reignites as oil jumps to $107 - Financial Times (2026-09-10)
- investinglive.com: US treasury sells $22 billion of 30 year bonds at a high yield of 5.308% - investingLive (2026-09-10)
- semafor.com: Treasury to buy back triple the bonds (2026-09-09)
- startupfortune.com: Scott Bessent's $6 Billion Bond Buyback Backfired and Yields Jumped - Startup Fortune (2026-09-10)
- goldseek.com: Treasury Department to buy back up to $6 billion in longer-term debt, triple the normal level (2026-09-09)
- cryptobriefing.com: Stellar 10-year Treasury auction sees highest bid-to-cover ratio in a decade - Crypto Briefing (2026-09-09)