Key Highlights

  • Forecasters pencil in a 0.3% monthly rise for headline prices and 0.2% for core prices when the October Consumer Price Index comes out at 8:30 AM ET on November 10, 2026.
  • Both figures would run cooler than September, when headline CPI increased 0.6% and core edged up 0.3% month over month, with energy costs falling sharply providing support this time.
  • No year-on-year figure will be published for October 2026, since the October 2025 index was not produced because of the 2025 government shutdown.
  • Heading into the release, SPDR S&P 500 ETF Trust (NYSEARCA:SPY) follows a 2.37% rise on November 9, while Options imply a one-day move of about 0.8% for the S&P 500.

Where Consensus Is Heading

Economists anticipate a cooldown. Energy should provide relief, as Brent Crude sank 16% in the week ending November 6 and dropped another 5.85% on November 9 when Iran tensions eased. Gasoline has been getting cheaper for roughly six weeks. A 0.3% headline reading would cut September's monthly pace in half, while a 0.2% core figure would indicate underlying Inflation is easing toward a level the Federal Reserve can live with. The release only includes index levels and monthly changes, so anyone searching for an annual rate will come up empty this month. That leaves extra attention on the monthly core figure and on shelter and services details. Real Earnings data comes out at the same time, and analysts will also track airfares and other transport services, which often trail fuel costs.

Why the Print Carries Extra Weight

The Fed raised rates a quarter point in September; on October 28 it left the range at 3.75% to 4.00%, though two officials favored another increase, and futures now put roughly 78% to 84% odds on a further hike on December 9. Consequently, CPI feeds directly into whether policy tightens again. Consumer inflation expectations remain stubborn, with one-year expectations at 3.9% in October. A core reading of 0.4% or higher would probably push the two-year Treasury Yield up from around 4.56% and weigh on rate-sensitive groups, tech valuations and small caps. A gentler figure could shave hike odds, potentially extending Monday's relief rally that was partly fueled by cheaper oil. The larger question is whether price pressure is spreading from goods into services, a shift policymakers would find harder to blame on oil.

How the ETF Could Respond

SPY owns the entire S&P 500, so it takes on both the rate impact and the earnings angle of the report. Technology carries the biggest weighting and is the most exposed to yield swings. Following the index's strongest session since April 8, SPY finished November 9 with the CBOE Volatility Index at 19.92, so investors enter the release with less protection in place. That elevates the chance of a sharper reaction if the figure surprises. Producer prices arrive November 13, while the Bond Market shuts on November 11 for Veterans Day but stock exchanges remain open. Fed officials speaking this week will be parsed for how they respond to the data.

Where Things Stand

October CPI is the week's central scheduled event. Forecasts call for 0.3% headline and 0.2% core monthly increases, and only monthly numbers will be shown. With traders pricing a December rate hike near 80% and SPY riding a strong rebound, the core figure will probably steer yields and stocks into the December 9 Fed decision. PPI on November 13 comes next, and a result close to forecasts would likely keep the hike debate alive rather than resolve it.