Fed Rate Hike Probability Surges After Hot CPI Report

The Federal Reserve’s rate-hiking cycle is suddenly alive again as Chair Kevin Warsh faces surging bond yields, $100 oil, and a hot inflation report that has pushed the probability of a quarter-point hike next week to roughly 85%, according to Fortune data.

The Inflation Data That Broke the Baseline

Wall Street traders were already growing nervous as crude pushed back above $100 and bond yields surged under the continued pressure of the artificial intelligence capital-expenditure boom on credit markets. Then came Thursday’s producer-price report, which feeds directly into the Fed’s preferred inflation gauge.

Chair Kevin Warsh left plenty of ambiguity over the central bank’s next move. That vacuum left Friday’s final inflation data unusually critical ahead of next week’s meeting. Outspoken Fed Governor Christopher Waller filled in the gap for traders by signaling that “it may not take much acceleration in inflation” to nudge him into supporting a hike. The Consumer Price Index then stepped right over that low hurdle.

Core consumer prices rose 0.3% in August, beating analyst expectations for a 0.2% increase. Headline CPI climbed 0.4%, driven by a sharp 3.9% jump in gasoline prices. Consequently, traders now price the probability of a quarter-point Fed hike next week at roughly 85%, up steeply from 70% before the report dropped.

Under the Hood of the CPI Spike

Beneath the headline numbers, specific marginal anomalies drove outsized influence in the core figures. Wireless telephone services prices surged 5.9% in August, marking the largest increase the Bureau of Labor Statistics has ever recorded for the category. Cellphone service alone contributed 0.077 percentage point to the overall CPI increase—about one-third of core CPI’s total 0.230-point contribution. Excluding that single category, core inflation would have worked out to a much more benign 0.2% increase rather than 0.3%.

Hardware tells a very different story. Apple just unveiled a roughly $2,000 folding phone, but smartphones themselves were not the culprit. Smartphone prices actually fell 1.7% in August and dropped 12.2% from a year earlier, while the broader telephone-hardware category fell 2.4% on the month.

Energy remains a thornier vector. Energy prices are rising sharply, and the latest spike in oil could still work its way into everything from airfare to consumer goods like plastics over the coming months.

Tightening Financial Conditions and the Bond Market Selloff

The bigger concern for investors is that this inflation surprise arrived alongside a bond-market selloff that is already tightening financial conditions. The 10-year Treasury yield climbed toward 5%, putting a psychologically important threshold within reach.

Photo: uk.finance.yahoo.com

Adam Turnquist, chief technical strategist at LPL Financial, noted that rates have recently “traded the stairs for the elevator.” A clear break above 5% on the 10-year, Turnquist explained, would put the 2006-2007 highs around 5.25% to 5.35% into focus as a comparison.

Stocks didn’t sulk over the report immediately, with all three indices shooting higher despite the headwinds. Main Street, however, feels a very different squeeze. Wage growth decelerated for the fifth month in a row, and consumer sentiment hit another near-record low on Friday morning.

“We haven’t seen this type of income squeeze since 2012,” Gregory Daco, chief economist at EY-Parpletheon, wrote on X.

The 30-Second Verdict for Markets

With core inflation printing at 0.3% month-over-month, the central bank finds itself boxed into a corner. As Chris Zaccarelli, chief investment officer at Northlight Asset Management, put it: “With a 0.3% month-over-month increase in Core CPI, the Fed now finds itself with its back against the wall.”

The remaining question for investors is whether an AI-powered stock rally can keep shrugging off $100 oil, a nearly 5% 10-year yield, and a Fed that suddenly looks ready to start hiking again—even if market indices seem to welcome the prospect for now. As Zaccarelli put it, “Bull markets don’t die of old age, they’re killed by the Fed.”