The Consumer Price Index — May 2026

Last month, the inflation report left one question hanging: the gas spike driving the headline — does it fade, or does it seep into everything else? This morning, we got the first answer.

First, the headline: prices up four point two percent over the year. That's the hottest in three years, the third month in a row the number accelerated — and there's still one primary driver for the spike.

Gas. Up forty percent from a year ago. Energy as a whole, up twenty-four. The rest of your basket? Single digits.

Strip out food and energy — together about a fifth of your basket — and the rest, what economists call core, is running two point nine, against the Fed's goal of two percent.

Which means the gap between the headline and the underlying trend is now the widest since late 2022. Back in February there was no gap at all. Those jaws opened in three months.

So — the seepage question. Core rose just two tenths in May, calmer than April. Three months into the energy spike, it hasn't bled into the rest of the basket. That's the good news hiding under an ugly headline.

Gaps like this have closed both ways. In 2022, energy faded and the headline came back down to meet core. In the seventies, it went the other way — energy seeped into wages and prices, and core climbed up to meet the headline. Same gap, opposite endings.

Here's where it touches you. You pay the headline today — at the pump, that's real money, no way around it. But your mortgage rate, your card, your car loan ride on what the Fed does next — and the Fed watches core.

And the bond market is already voting. The two-year Treasury yield — the market's bet on where the Fed's rate is headed — has held above the top of the Fed's range for about seven weeks now. That's the market keeping a rate hike on the table.

But here's the Fed's dilemma: a rate hike cools demand — it doesn't drill a well or refine a gallon of gas. If core stays grounded and the energy fades, there's little for a hike to fix. If the seepage shows up, that math changes. That's the watch.