Headline US inflation rose just 0.1% in July and slowed to 3.4% year-over-year, while core CPI — which strips out food and energy — came in at 2.5%, its lowest annual reading since February. The official Bureau of Labor Statistics release attributed most of the monthly increase to shelter costs, which rose 0.1% and accounted for roughly two-thirds of the overall gain, while the energy index actually declined 1.5% on the month.

Both figures landed exactly in line with what economists had modeled, but the market reaction was outsized. Odds that the Federal Reserve pauses rather than raises rates at its September meeting jumped to 64%, up from just 30% a month earlier — and up from 45% only a week ago. The shift has been unusually fast for a single data point, reflecting how sensitive rate expectations have become after a stretch of mixed signals from the Fed.

July CPI Cools to 3.4%, Fed Rate-Hike Odds Cut in Half
Image via @BullTheoryio on X

A Notable Reversal in Fed Positioning

What makes this cycle unusual is that the debate has centered on whether the Fed hikes again rather than when it cuts — the current target range sits at 3.5% to 3.75%, and markets had been pricing meaningful odds of another increase before this report. With the July print landing soft, the probability of that additional hike has roughly halved, easing pressure on rate-sensitive assets that had been bracing for tighter policy into the fall. The cooler print also lands alongside a record federal budget deficit, adding to the case that fiscal, not just monetary, dynamics are shaping the rates outlook.

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The reaction wasn't confined to US markets. Japan's Nikkei surged 1.7% on the day, adding roughly ¥20 trillion (about $128 billion) in market value, as the cooler US inflation data eased fears of further Fed tightening and rippled through global risk sentiment.

One More Print Before the Fed Meets

There's still another inflation report due before the September FOMC meeting, meaning the current pricing could shift again if August data comes in hotter than expected. For now, though, the combination of a softer core reading and a labor market that's shown signs of loosening has taken most of the urgency out of the case for another rate increase.