As tensions escalate between Israel and Iran, investors are bracing for potential U.S. military involvement and its economic ripple effects. Markets are watching closely as the Trump administration considers joining Israel’s bombing campaign amid ongoing missile exchanges. The recent deployment of B-2 bombers to Guam—capable of targeting Iran’s underground nuclear sites—has fueled speculation, although the move's direct link to the conflict remains unclear.
Energy markets have already reacted. West Texas Intermediate (WTI) crude prices are up 10% this week, while Brent crude hit a five-month high. Analysts warn that a strike disrupting Iranian oil output or closing the Strait of Hormuz could push oil to $130 per barrel, potentially driving U.S. inflation to 6% and eliminating chances for rate cuts in 2025.
Stock markets have remained relatively stable, with the S&P 500 largely unchanged since Israel's initial attacks. However, further escalation could trigger a risk-off sentiment, with potential equity selloffs and a temporary dollar rally due to safe-haven demand. Economists also highlight the risk to global growth already pressured by tariffs and inflation.
Historically, geopolitical shocks have led to short-term stock declines followed by recovery. The S&P 500 fell an average of 0.3% in the three weeks following past Middle East conflicts but rose 2.3% two months later. The dollar may strengthen initially but could weaken long-term if prolonged military engagement triggers nation-building efforts similar to those after 9/11.
As oil volatility surges and investor anxiety grows, markets are increasingly focused on whether—and when—the U.S. will act. A direct intervention could significantly shift global financial dynamics, impacting inflation, interest rates, and broader market sentiment.