US Treasury yields are heading for their worst monthly performance as escalating tensions between the US and Iran drive oil-driven inflation concerns. The selloff in government bonds reflects growing anxiety about higher energy prices potentially fueling broader inflationary pressures across the economy.

Investors are particularly sensitive to geopolitical risks that could disrupt oil supplies and push prices higher. The US-Iran standoff has intensified after recent military exchanges and diplomatic confrontations, with crude oil futures responding by climbing to multi-month highs. This dynamic is forcing traders to reassess their inflation expectations and adjust their Treasury positions accordingly.

The bond market's reaction underscores how quickly geopolitical events can impact financial markets. With the Federal Reserve already navigating between inflation concerns and economic growth, additional upward pressure on prices from energy costs could complicate monetary policy decisions. The current Treasury selloff signals markets are bracing for potentially stickier inflation ahead.