September PCE Inflation Holds at 3.1%, Keeping December Fed Hike in Play

The personal consumption expenditures price index rose 3.1% year over year in September, the Bureau of Economic Analysis said Wednesday, matching August's pace and landing a tenth of a point above the consensus forecast. Core PCE, which strips out food and energy, eased to 2.8% from 2.9%, but the deceleration was slower than policymakers had hoped for.

The composition of the report mattered more than the headline. Goods prices continued to deflate, and housing services inflation finally showed signs of topping out. What kept the aggregate elevated was the same force that has defined the autumn: energy. Gasoline, electricity and heating costs carried the monthly impulse, echoing the producer-price data released two weeks ago.

Reaction in rate markets was immediate. Fed funds futures moved to price roughly 78% odds of a 25-basis-point increase at the December meeting, up from 65% before the release. Two-year Treasury yields added six basis points, while the ten-year drifted higher in a classic bear-flattening move.

"This is exactly the report the Fed did not want to see, but also the one it expected," said Laura Nkemdirim, senior rates strategist at Ashfield Partners. "Core inflation is grinding lower at a pace that would justify patience. Headline inflation is not giving them the political room to be patient."

The data land four days before the October employment report, which now stands as the last major input before the Federal Open Market Committee convenes in December. A weak labour print would give doves room to argue that the energy impulse is transient; a firm one would likely lock in the hike.

Personal income and spending both rose 0.3% on the month, a touch below forecasts but still consistent with an economy that is cooling rather than cracking. The saving rate held at 4.1%, suggesting households are still funding consumption from earnings rather than drawing down buffers.

For the Fed, the arithmetic is uncomfortable. The September hike to a 4.0% upper bound was framed as an insurance move against exactly this kind of inflation persistence. Wednesday's print keeps that logic alive — even as PMI data point to an industrial sector already absorbing the cost shock.