October’s inflation double-header ends Friday. At 8:30 a.m. ET on November 13, the Bureau of Labor Statistics releases the Producer Price Index for October — the wholesale counterpart to Tuesday’s hot CPI. Economists expect a 0.4% monthly rise, a sharp cooldown from September’s 1.3% surge. But after two straight upside surprises, nobody at the Fed will take a soft number for granted. A hotter print feeds directly into December’s question: a quarter-point hike, or half a point?

A December hike is fully priced: Wednesday’s CME FedWatch put 25 basis points at roughly 85–90% and 50 at roughly 10–15%. Before Tuesday’s CPI, the half-point move was priced near zero. Friday’s PPI decides how wide that split gets.

Why wholesale prices matter now

The PPI tracks what producers receive; the CPI tracks what consumers pay. The PPI runs hotter when cost pressures are building in the pipeline — and it feeds into the gauge the Fed actually targets. Several PPI components feed directly into the PCE index. Economists cited by Reuters already put October core PCE on track for +0.34%, above 4% annualized. A hot PPI would push that estimate higher before the Fed votes.

October’s core CPI hit, to the tenth, the line Governor Christopher Waller drew hours earlier: core at 0.3% or more means 50 basis points “should be considered” in December. The PPI tests whether that was a one-off or a pattern.

September’s shock, in numbers

September’s report was the largest wholesale-price jump in four and a half years. Final demand rose 1.3% on the month, the Bureau of Labor Statistics reported — the biggest increase since March 2022 — and 6.3% over twelve months, the fastest annual pace since December 2022. Energy did most of the damage: prices for final demand energy jumped 10.8%, with gasoline up 20.3% in a single month, half of the rise in goods prices. Goods rose 2.6%, the largest gain since the series began in December 2009, and services rose 0.8%.

Excluding foods, energy, and trade, the index rose 0.5% in September and 5.0% over the year. Deeper in the pipeline, processed goods rose 14.1% over the year and unprocessed goods 21.5%.

The nine-month run-up tells the story in one view:

*October row is consensus; core is PPI ex food and energy. Source: BLS Table A.

First, the annual rate has doubled since January, from 3.1% to 6.3%. Second, the underlying index has risen every month of 2026. This is not one energy spike — it is a steady grind higher.

The pass-through gap

The gap between wholesale and retail inflation is itself a signal. In September, producer prices were up 6.3% over the year while consumer prices were up 3.7% — a 2.6 percentage-point gap. The core gap is similar: 5.0% for the PPI gauge excluding foods, energy, and trade, against 2.6% for core CPI. Either producers absorb it, or it reaches consumers later. September points to the second outcome: wholesale gasoline rose 20.3%, more than twice retail gasoline’s 9.1%.

What to watch on Friday

Three numbers decide the market reaction. First, the headline monthly change: consensus is +0.4%. A print of 0.5% or higher would beat expectations again — Kalshi gives that a 54% chance — while below 0.2% would be the first downside surprise since summer. Second, core, expected at +0.3% after September’s +0.7%: consensus is already a slowdown, though the annual core rate should hold at 5.0%. Third, the annual rate should land near 6.6% on consensus: September’s 6.3%, plus October’s 0.4%, minus October 2025’s 0.1% dropping out of the window. Above 7% would need a print near 0.8% — possible after September, but not the base case.

Beyond the headline, watch services — and energy. Consumer energy already cooled to +0.7% in October; Continuum expects producer energy +3.0% more, smaller than September’s 10.8% but still positive. September’s 0.8% services rise was driven by trade margins and transport, which feed directly into core PCE. If services stay firm while goods cool, the Fed’s preferred gauge keeps rising even as the headline looks tamer.

The case for 50 — and the case for 25

The case for the larger move has gathered force. Core consumer prices have risen 0.3% for three straight months. October payrolls rose 165,000, roughly two and a half times expectations. Dallas Fed President Lorie Logan wants at least two more quarter-point increases. Goldman Sachs has added a March hike to its forecast, and Deutsche Bank now expects hikes in December, January, and March, taking the funds rate to 4.50%–4.75%. On this view, the Fed is behind the curve — and Friday is another chance for the data to say so.

The case for 25 basis points is thinner but not empty. First, energy — the driver of September’s spike — cooled sharply at the consumer level in October, and a similar producer cooldown would slow it. Second, the Fed almost always moves in 25-basis-point steps, and a half-point hike would read as an alarm the committee may not want to sound. Third, two more data points arrive before the vote. Macquarie cautions that Congress faces a December 11 funding deadline, and a shutdown could delay the data the Fed needs. The Fed’s Michelle Bowman adds that the benefits of further hikes must be weighed against their costs for housing and other rate-sensitive sectors.

The December scorecard

Friday’s report is the third of five checks before the vote:

Whatever the committee decides on December 9, it will decide on October’s inflation data and November’s jobs data — not on a fresher CPI print. That makes Friday the last inflation evidence before the meeting, apart from October PCE (Nov 25). If PPI confirms the CPI, December’s debate is about the hike’s size, not whether to hike. If it contradicts the CPI, the 50-basis-point talk fades as fast as it arrived.

This article is for informational purposes only and does not constitute financial advice. Data are sourced from the U.S. Bureau of Labor Statistics, the Federal Reserve, and market pricing surveys as cited.