US Treasury Yields Climb to 19-Month Highs Amid Oil Surge and Rate Hike Bets

US Treasury yields climbed to their highest levels in 19 months, driven by a sharp rise in oil prices and growing expectations of aggressive monetary tightening. The selloff expanded across the yield curve, pushing five-year yields to peaks not seen since early 2025.

Crude oil prices jumped more than 2 percent during US trading hours after hitting session highs. This surge followed President Donald Trump’s threat of additional attacks on Iran, injecting fresh geopolitical risk premiums into energy markets.

The broader Treasury selloff has accelerated in recent sessions as markets reassess the Federal Reserve’s policy trajectory. Short-term yields spiked on Friday after Fed Chairman Kevin Warsh signaled at the Jackson Hole symposium that interest-rate increases remain a viable tool to contain inflation.

Market participants are closely watching upcoming macroeconomic data for confirmation of this hawkish pivot. Sean Simko, head of fixed-income investment management at SEI Investments Corp, noted that the central bank is prepared to respond to persistent price pressures.

“The Fed is ready to act when needed,” Simko said. He highlighted the August employment report and the September 11 consumer-price data as critical indicators ahead of the Federal Reserve’s September 16 policy decision, noting that stable employment alongside elevated inflation could prompt a rate hike.

Longer-dated debt has also faced intense selling pressure. The 30-year Treasury yield rose approximately five basis points to nearly 5.26 percent on Monday, though it remains below the multiyear peaks recorded in mid-August.

Those longer-term yields had previously found some relief earlier this month. The Treasury Department announced an expansion of debt buybacks designed to support market liquidity and stabilize bond values, temporarily easing the upward pressure on rates.

Despite that intervention, derivatives markets indicate traders are bracing for further declines in long-maturity bond prices. One significant transaction involved the purchase of roughly $6.5 million in December put options on US Treasury bond futures.

This specific strike level implies that 30-year yields could climb to approximately 5.7 percent by the time the options expire on November 20. This represents a notable increase from current levels near 5.25 percent.

Adding to the downward pressure on bond prices is the anticipation of heavy debt issuance. September is historically one of the most active months for corporate bond supply, and upcoming issuance volumes are projected to exceed previous September totals, further straining market absorption capacity.