US consumer prices accelerated at their fastest pace in more than three years during May, with the Consumer Price Index climbing to a new peak.

The surge is largely driven by war-related gasoline and energy costs stemming from the ongoing conflict in Iran, which have pushed household expenses higher and reignited inflation concerns.

The hotter-than-expected print complicates the Federal Reserve’s path toward rate cuts, forcing markets to reassess the timeline for monetary easing.

Traders are now pricing in a more cautious stance from policymakers, who will likely weigh whether the energy-driven price spike is a transitory shock or a signal of broader inflationary pressure.

Attention now turns to upcoming labor market data and Federal Reserve communications to gauge the central bank’s reaction function.

Markets will also monitor Brent crude and natural gas futures for further volatility as geopolitical risks in the Middle East persist, with any escalation likely to feed directly into US consumer price metrics.