NEWYORK

U.S. Treasury Secretary Scott Bessent's revamped buyback program—which he has termed a "Treasury twist"—has Wall Street reassessing what the Nov. 4 quarterly refunding announcement will deliver.

The operation works by having the Treasury purchase long-term government bonds while funding those purchases with shorter-term debt issuance. Bessent outlined the strategy in a CNBC interview last week.

The move breaks from the predictability that has long defined U.S. debt policy. Bank of America strategists, led by Meghan Swiber, view it as the start of a "new regime" where Treasury officials actively shape the yield curve rather than passively funding operations.

Ian Lyngen, head of U.S. rates strategy at BMO Capital Markets, said Bessent's actions have made the November refunding "more of a wildcard," with reductions to bond auction sizes now on the table.

Deutsche Bank, Morgan Stanley and Citigroup have each floated the possibility that Treasury could cut sales of long-dated bonds entirely. Market consensus, however, leans toward a less aggressive outcome: the Treasury signals higher bill issuance and shorter-maturity note sales while expanding buybacks to cap long-end yields.

Martin Tobias, rates strategist at Morgan Stanley, expects the Treasury to gradually lift shorter-dated note sales while holding long-end auctions steady. But Tobias also flagged that the risk of outright cuts to long-end auctions has risen sharply in recent days.

The buyback program itself is widely viewed as temporary. Unlike the Federal Reserve, Treasury cannot mint money to finance purchases; buybacks must be funded by additional bill issuance or draws from the Treasury General Account.

Tobias characterized the expanded buybacks as a "bridge" to November. The real market event will be Treasury's chosen method for reshaping the weighted-average maturity of outstanding debt.

Treasury's latest refunding guidance contained a telling shift. Previous language referred to evaluating potential "increases" in coupon and floating-rate note sales. Updated guidance now references studying potential "changes"—language analysts said gives the department room to trim long-end issuance.