US CPI Rises 0.4% in October 2026 as Rate Hike Expectations Jump

U.S. equities pulled back on Tuesday, November 10, 2026, following a hotter-than-expected Consumer Price Index (CPI) report that cemented expectations for a Federal Reserve rate hike at the upcoming December meeting.

### Executive Thesis The October 2026 inflation print dispels hopes of an imminent pause in monetary tightening, forcing traders to price in higher terminal rates. With core pressures remaining stubborn, capital flows are shifting defensively away from high-multiple growth equities and into cash and short-duration instruments as policy risks escalate.

### The Print vs Consensus The Bureau of Labor Statistics reported that the Consumer Price Index increased 0.4% MoM on a seasonally adjusted basis in October 2026, exceeding the 0.3% rise anticipated by Wall Street consensus. Core CPI, which strips out food and energy components, similarly advanced 0.3%, topping the 0.2% estimate.

### Market Reaction Equities absorbed the macro shock immediately following the morning data release. The Dow Jones Industrial Average dropped 0.30%, the S&P 500 fell 0.38%, and the tech-heavy Nasdaq Composite underperformed with a 0.74% decline. Nvidia shares extended losses, shedding another 5.5% amid company-specific headwinds.

### What It Means for Policy & Positioning Federal Reserve Governor Christopher Waller indicated prior to the release that a stronger inflation reading would justify robust policy action, explicitly pointing to a potential 50-basis-point adjustment at the December meeting. CME Group FedWatch pricing reflects a 90.5% probability of a rate move into the 4%-4.25% bracket, with a 9.5% probability assigned to a half-point hike. Traders are reevaluating risk exposure as monetary authority credibility takes center stage.

### Next Calendar Watch The next key scheduled macro catalyst follows on the Federal Reserve policy announcement and updated Summary of Economic Projections at the conclusion of the December FOMC meeting.