Treasury yields experienced a downturn on Monday, with the 10-year U.S. Treasury note yield decreasing by more than 6 basis points to 4.619%, and the 2-year Treasury note yield falling over 5 basis points to 4.198%. The 30-year Treasury bond yield also dropped by more than 4 basis points to 5.182%. This movement in yields is inversely related to bond prices.

The decline in Treasury yields was largely driven by a significant drop in oil prices. US Treasury Secretary Scott Bessent announced plans for the "economic asphyxiation" of Iran, which included expanding secondary sanctions and warning of severe consequences for countries not participating in the campaign. This news caused Brent North Sea Crude to fall by 2.4% to $92.17 per barrel, and West Texas Intermediate (WTI) to decrease by 2.4% to $85.01 per barrel. Analysts like Andy Lipow of Lipow Oil Associates expressed concern about potential retaliation from Iran on Middle Eastern energy infrastructure.

Bessent's announcement also mentioned the US Treasury's intent to buy back more of its own bonds to lower borrowing costs, a strategy that could be opposed by Federal Reserve Chairman Kevin Warsh due to its potential to complicate the Fed's inflation-fighting efforts. Earlier efforts by Bessent to rein in borrowing costs through bond buybacks have had mixed results, with some market participants expressing skepticism about their long-term effectiveness amid concerns about government debt and inflation.

While the decrease in oil prices is seen as easing some inflationary pressures, analysts like Tony Miano of Wells Fargo Investment Institute caution that broader inflation could remain sticky in the near term, potentially limiting how much further Treasury yields might fall. Miano noted that even if oil shipments resume, it could take time for the market to stabilize and for consumers to see meaningful relief at the pump, suggesting that inflation is unlikely to normalize overnight.