The Bureau of Labor Statistics collects Producer Price Index (PPI) prices on the Tuesday of the week containing the 13th of each month. The March survey date was March 10. The Iran conflict began on February 28, making March 10 exactly ten days post-onset. The February survey date was February 10 — eighteen days before the conflict began – but well within the window of pre-conflict rhetoric and US troop buildup in the region.
The March 2026 CPI report confirms what the structural analysis predicted: the Iran Conflict’s initial consumer price impact is concentrated in motor fuels, which respond to crude oil prices with almost no lag. The 0.9 percent monthly CPI increase is large by recent standards — the largest monthly increase since mid-2022, but it is not yet the broad-based food and goods inflation that a prolonged Strait of Hormuz disruption will eventually produce.
When an energy shock ripples out from the Persian Gulf, the headlines focus on oil prices, gasoline costs, implications for value chains and the profit margins of U.S. producers.
