May CPI surprises at 8.6%, fastest pace since 1981

May CPI printed 8.6% YoY on June 10 2022, a 30 bp upside surprise versus the 8.3% consensus and above April's 8.3%. The acceleration dashed hopes that April's print had marked the peak. Gasoline, food, and shelter all contributed. Core CPI decelerated slightly to 6.0% but remained well above the Fed's tolerance.

Markets reacted violently. The S&P 500 fell 2.91% and Nasdaq 100 fell 3.52% as the print forced immediate repricing of Fed expectations. The 2Y Treasury yield jumped 25 bps to 3.07%, and Fed funds futures began pricing a 75 bp hike at the June 15 meeting (up from 50 bp consensus). The report triggered a Wall Street Journal article the following weekend signaling the Fed was indeed considering 75 bp, effectively pre-announcing the larger move.

The CPI beat marked the point where narrative shifted from "transitory" to "entrenched." Fed terminal rate expectations climbed from 3% toward 4%, then 5% over the following months. Equity multiples compressed sharply through the summer of 2022. The June 10 session was the inflection point where inflation pricing became the dominant macro variable, a regime that would persist for the next two years.