US inflation spikes to 3.3%

Gas prices did in one month what the Federal Reserve had spent a year trying to avoid: they shoved the March Consumer Price Index up 0.9% from February and 3.3% from a year earlier, after February had been 2.4%. (bls.gov) That was the first inflation report to capture the price shock from the war with Iran, and energy was the center of it. The Bureau of Labor Statistics said the energy index jumped 10.9% in March. (bls.gov; cnbc.com) The biggest single hit was gasoline. Gasoline prices surged 21.2% in March and accounted for nearly three-quarters of the monthly increase in the overall index, which is like one item in the cart suddenly explaining most of the bigger grocery bill. (cnbc.com) The important split inside the report is that headline inflation and underlying inflation told different stories. Core inflation, which strips out food and energy to show the slower-moving trend, rose just 0.2% in March and 2.6% over 12 months. (bls.gov; reuters.com) That means the March spike looked more like an oil shock than a broad economy-wide reheating. Medical care, personal care, and used cars and trucks all posted price declines during the month even as the top-line number jumped. (cnbc.com) Businesses still do not get to ignore it, because energy is the cost that sneaks into everything else a few weeks later. A trucking company pays more for diesel first, then a wholesaler pays more for shipping, then a retailer decides whether to eat the margin or raise the sticker price. (reuters.com) Investors were watching this report because it changes the Federal Reserve’s rate-cut math. A central bank aiming for 2% inflation can look through one energy spike, but 3.3% headline inflation makes it harder to argue that price pressures are fully under control. (bls.gov; cnbc.com) The twist is that some economists think March may not be the worst print. Reuters quoted Goldman Sachs Asset Management saying the report may have captured only part of the conflict’s effect after crude oil and U.S. gasoline had risen sharply at their peak. (reuters.com) There is one reason markets did not panic on April 10: energy prices had already cooled some in April after a ceasefire between the United States and Iran. If that cooling holds, March could end up looking like a sharp detour rather than the start of a second inflation wave. (cnbc.com) If it does not hold, the next few inflation reports get harder fast. A one-month gasoline jump is painful for households, but a multi-month energy shock is what turns a war overseas into higher prices on freight, food, flights, and factory inputs across the United States. (reuters.com; bls.gov)