The May inflation report landed with a thud: headline CPI rose to 4.2% year over year, the highest reading since April 2023. A day later, the Federal Reserve held rates at 3.50–3.75% and published a fresh set of projections that leaned, if anything, toward another hike. The tape says inflation is back. We think the tape is reading the wrong line.
Look under the hood of that 4.2% print and you find something far narrower — and far more fixable — than the broad, demand-driven inflation of 2021–22. This was an oil shock. And the shock is already reversing.
A word that earned its bad reputation
“Transitory” became a punchline in 2022, and deservedly so. The inflation of 2021–22 was broad-based and demand-driven, fueled by stimulus and a money-supply surge that touched nearly every category in the basket. Calling that transitory was a forecasting error. What we have now is the opposite kind of inflation: a single, identifiable, external supply shock with a clear start date and — increasingly — a clear end date.
What the May CPI actually shows
Headline CPI rose 0.5% on the month to 4.2% annually. But core CPI, which strips out food and energy, rose just 0.2% on the month and sits at 2.9% year over year. The gap between the two tells the story. Energy prices jumped 3.9% in the month and are up 23.5% over the year, with gasoline up a staggering 40.5%. Energy alone accounted for the majority of the monthly increase. Strip out the barrel of oil and the underlying trend looks far closer to the Fed’s 2% target than the headline suggests.
The shock is already unwinding
Crude was trading near $67 before the Iran war began in late February. Within about a week of hostilities it spiked above $119 — roughly an 80% war premium — as the Strait of Hormuz, the chokepoint for about a fifth of global oil, was effectively closed. That premium is now collapsing. With a U.S.–Iran peace deal being signed and Iran reopening the Strait, oil tumbled more than 10% in a single session to around $81, and the war premium has compressed from ~80% to barely 13%.
This matters because of how inflation is measured. That 23.5% year-over-year energy figure reflects a price that has already largely round-tripped. As the spike rolls forward into the next few CPI prints — and then rolls off the twelve-month comparison entirely — headline inflation should fall back toward core, not the other way around. The Treasury market has already begun to price it: ten-year yields slid sharply on the de-escalation, trading near 4.48%.
Why we think rates head lower from here
This is where our view parts company with the Fed’s June dot plot. Chair Kevin Warsh’s first meeting produced a hold and projections that put a rate hike very much on the table for later in 2026. We understand the instinct — a new chair guarding inflation-fighting credibility does not want to look complacent in front of a 4-handle CPI print. But we think the Fed is fighting last quarter’s war.
An energy shock that is already reversing does not call for tighter policy. Worse, an oil shock is itself contractionary — it acts like a tax on consumers and businesses — so hiking into it risks compounding a growth slowdown rather than taming a genuine inflation problem. As headline CPI decelerates through the second half of 2026 and the energy base effects turn from tailwind to headwind, we expect the conversation to shift from “one more hike” to “when do we cut.” Our base case is that the next move in rates is down, and that the market’s current flirtation with hike risk fades along with the oil premium.
What could go wrong with this call
We hold this view with conviction, not certainty, and the honest case against it is worth stating plainly. First, second-round effects: if the energy spike bleeds into wage demands and consumer expectations, core could re-accelerate even as oil falls. Second, shelter — the single largest CPI component — ticked up to 3.4% and has been stubborn. Third, the geopolitics are fragile: if the peace deal unravels and Hormuz closes again, the oil premium comes straight back. And fourth, a credibility-focused Warsh Fed may simply choose to hike regardless of how we read the data. Any of these would push our timeline out, or break the thesis outright.
What it means for traders and allocators
Regime turns like this — where the consensus leans one way (hikes, sticky inflation) just as the underlying driver reverses — are where being systematically positioned tends to beat being right in an argument. Rate, currency, and energy markets have already started to move, and trend-following and managed futures strategies are built to participate in exactly these multi-month directional shifts without needing to call the turn in advance. If you’d like to understand how we position client capital around macro inflection points like this one, get in touch — a principal responds within one business day.
This article is for informational and educational purposes only. It reflects the opinions of Wisdom Trading as of June 2026, contains forward-looking views that may prove incorrect, and does not constitute investment advice or a recommendation to buy or sell any security, futures contract, or trading strategy. Past performance is not indicative of future results. Futures trading involves substantial risk of loss and is not suitable for all investors.
Frequently asked questions
Is the 2026 inflation spike transitory?
We think this spike is far more likely to prove transitory than the 2021–22 episode, because it stems from a single, identifiable energy supply shock — the Iran war and the closure of the Strait of Hormuz — that is already reversing, while core inflation has held near 2.9%.
Why is headline inflation high if core inflation is only 2.9%?
The May 2026 headline CPI of 4.2% was driven overwhelmingly by energy, which rose 23.5% year over year (gasoline +40.5%). Core CPI, which excludes food and energy, rose just 0.2% on the month and 2.9% annually — much closer to the Fed’s target.
Will the Federal Reserve cut interest rates in 2026?
The Fed held at 3.50–3.75% in June 2026 and its projections leaned toward a possible hike. Our contrarian view is that as the energy shock reverses and headline inflation falls back toward core, the next move is more likely to be a cut than a hike — though this is an opinion, not a certainty.
What happens to inflation if oil prices keep falling?
Because the year-over-year energy increase reflects a price that has already largely round-tripped, falling oil should pull headline CPI back down toward core inflation as the spike rolls off the twelve-month comparison in the second half of 2026.