WASHINGTON — U.S. Treasury Secretary Scott Bessent is pushing back against concerns that rising government debt and recent market volatility could threaten the stability of the American bond market.

Bessent said the U.S. Treasury market remains resilient, even as longer-term yields have moved higher amid inflation concerns and renewed geopolitical tensions. The 10-year Treasury yield recently ended near 4.73%, according to Reuters.

The Treasury is also preparing to increase its purchases of longer-dated government debt. Starting September 10, the department plans to double its bond buybacks to $4 billion per operation.

Officials describe the move as a measured approach designed to improve market conditions, particularly during periods when trading volumes are typically lower.

Bessent rejected suggestions that the buybacks represent an attempt to manipulate Treasury prices. He argued that similar steps by other major central banks have been used to support orderly markets.

The debate comes as investors remain focused on U.S. government borrowing, Treasury yields, inflation and Federal Reserve policy. Higher yields can increase financing costs for the government while also influencing mortgages, corporate borrowing and investment decisions across the American economy.

The Treasury's September buyback expansion will therefore be closely watched by Wall Street as investors assess whether the measure can improve liquidity without creating new concerns about U.S. debt-market policy.

The development also comes amid renewed volatility in energy markets following escalating U.S.-Iran tensions, adding another layer of uncertainty for investors heading into September.