Treasuries Fall as US-Iran War Inflation Erodes Fed Rate-Cut Bets

US Treasury yields surged as inflation data, now reflecting the economic shockwaves from the US war on Iran, dismantled market expectations for Federal Reserve interest rate cuts this year. The selloff accelerated after President Donald Trump threatened to escalate the conflict, directly linking geopolitical risk to domestic monetary policy and investor calculus. This marks a pivotal shift where wartime inflation pressures are actively constraining the Fed's options, forcing a rapid repricing across bond markets.

The catalyst was the March consumer price report, the first official snapshot to capture the inflationary impact of the conflict. Yields climbed from the open and jumped an additional five basis points following Trump's midday warning that failed weekend talks could lead to further escalation. This sequence underscores how geopolitical flashpoints are now immediate, data-moving events for financial markets, with Treasury traders reacting in real-time to the rhetoric from the White House.

The dynamic places intense pressure on the Federal Reserve, which now faces sustained inflation fueled by conflict-driven disruptions alongside the threat of a broadening war. The erosion of rate-cut wagers signals a market bracing for a prolonged period of higher-for-longer interest rates, increasing borrowing costs and financial strain across the economy. This convergence of war, policy, and markets creates a volatile feedback loop where each escalation risks further tightening financial conditions.