September 2026 CPI Report Preview: What to Expect on October 14 and Why It Decides the Fed's Next Move

The September 2026 Consumer Price Index comes out Wednesday, October 14, at 8:30 AM ET. It is the last inflation report before the Federal Reserve meets on October 27 and 28, and it arrives with a specific problem: the Cleveland Fed's nowcast has headline inflation rising to 3.6% while core inflation holds near 2.4%. Energy is pushing the headline up; everything else is behaving.

That gap is what the Fed has to interpret. Here is what the August report said, what the September forecasts show, how the market has reacted to inflation surprises this year, and how to be ready for 8:30 AM on the 14th without guessing the number. Education, not advice, and no forecast of our own.

When is the September 2026 CPI report?

Wednesday, October 14, 2026, at 8:30 AM ET, from the Bureau of Labor Statistics. It covers September prices. Stock futures and Treasury yields react in the first minute; the regular session opens an hour later.

What the last report said

From the August CPI release, published September 11:

• Headline CPI: up 0.4% for the month and 3.4% over the past 12 months.
• Core CPI (excluding food and energy): up 0.3% for the month and 2.4% over 12 months.
• Energy: up 2.1% in the month and 16.3% over the year. Gasoline alone was up 3.9% in August and 27.4% over the year.
• Shelter: up 0.3% in the month and 3.0% over the year.
• Food: up 0.1% in the month and 2.7% over the year.

The arithmetic of that report is the whole story. Core inflation at 2.4% is close to where the Fed wants it. Headline inflation at 3.4% is a full point higher, and the difference is almost entirely energy. Our guide to how oil prices move the market covers why crude near $90 to $100 shows up in CPI within weeks.

What forecasters expect for September

The Cleveland Fed's inflation nowcast, updated October 2, projects September CPI up 0.53% for the month and 3.60% over the year, with core CPI up 0.20% for the month and 2.39% over the year. Early consensus trackers put the headline figure near 3.7%; the official survey estimates firm up in the days before the release.

Read those two numbers together:

• Headline rising from 3.4% to about 3.6%. A monthly gain near 0.5% would be driven by energy, as August's was.
• Core flat at about 2.4%. A 0.2% monthly core gain, annualized, is roughly 2.4%, which is near the Fed's 2% goal.

A report that matches the nowcast tells the Fed that its own measure of underlying inflation is under control while the number households feel is getting worse. Those point in different policy directions, which is why the reaction on the 14th will depend on which figure the market and the Fed choose to weight.

Why this report matters for the October 28 Fed decision

The Fed raised its target range to 3.75% to 4.00% on September 17, its only hike so far this year, and we covered what that hike meant at the time. The question since has been whether a second one follows on October 28.

Two reports decide it, and the first has already landed. The September jobs report on October 2 showed 29,000 jobs added and unemployment at 4.2%, and the odds of an October hike on the CME FedWatch tool fell to about 17% from 36% a week earlier, per CNBC. We wrote about why stocks rose on that weak report. CPI on October 14 is the second report.

• Core at or below 0.2% for the month: confirms the jobs report. A hike in October becomes very unlikely, and the discussion moves to December.
• Core at 0.3% or higher: reopens the hike debate, because the Fed cannot blame that on gasoline.
• Headline hot, core cool: the likeliest outcome by the nowcast, and the hardest to trade, because the first headline-driven move can reverse once the core figure is read.

Our preview of whether the Fed raises rates again in October tracks the odds through the month. For the difference between CPI and the inflation measure the Fed officially targets, see PCE vs CPI.

How stocks have reacted to inflation data this year

The pattern in 2026 has been consistent: the market trades the implication for rates, not the number itself. A hot print raises hike odds and pushes yields and rate-sensitive stocks down. A cool print does the reverse. With the 10-year yield above 5%, the stock market has been unusually sensitive to every tenth of a point.

The twist is that headline and core can disagree, as they did in August. On those days the futures reaction at 8:30 AM is often to the headline, and the reaction by 10:00 AM is to the core. That whipsaw is the single best argument against trading the first minute. Our guide to how interest rates affect your portfolio covers which holdings feel it most.

How to prepare for October 14 without predicting the number

We build an automated trader, and the report days are the ones we plan around most carefully. Nothing in the plan requires a view on CPI:

• Decide size before the data. Position sizing is what decides how much a wrong 8:30 AM reaction costs.
• Have exits set the night before. Stops and targets placed after the print, with the futures moving, are placed in a hurry.
• Cap the day. A daily loss limit stops one release from becoming a string of revenge trades. See investing through volatile markets.
• Read core before acting. If the headline and core disagree, the second move usually follows core.

If you would rather have those rules enforced automatically, JorgAI applies your size, stop, and daily loss limits inside your own brokerage account, on CPI day and every other day.

What comes after CPI

• October 15, 8:30 AM ET: the September Producer Price Index, the wholesale inflation measure, per the BLS schedule.
• October 13 onward: third-quarter earnings season, which competes with the macro data for the market's attention from mid-month.
• October 27 and 28: the Fed meeting, with the decision at 2:00 PM ET on the 28th.
• October 29: September PCE inflation, the Fed's preferred measure, alongside third-quarter GDP.

All of October's dates are in our October 2026 stock market calendar. We will update this page with the actual September figures on the morning of October 14.

Common questions about the September 2026 CPI report

What time is the CPI report released?

8:30 AM ET on Wednesday, October 14, 2026, one hour before the stock market opens.

What was the last CPI reading?

For August 2026: headline CPI rose 0.4% in the month and 3.4% over 12 months; core CPI rose 0.3% and 2.4% over 12 months.

What is the forecast for September 2026 CPI?

The Cleveland Fed nowcast, as of October 2, projects headline CPI at 3.6% over the year and core at 2.4%. Early consensus trackers are near 3.7% for the headline. These are forecasts, not results.

Will the Fed raise rates in October 2026?

Unknown. After the weak September jobs report, futures pricing implied about a 17% chance of a hike at the October 27 and 28 meeting. A hot core CPI reading on October 14 could raise that; a cool one could lower it further.

Should I trade the CPI release?

That is a personal decision and this is not advice. The release minute has the widest spreads and the most reversals of the day; a rules-based approach decides size and exits in advance and lets the first move settle. You can set those rules once in JorgAI.

Figures are from the Bureau of Labor Statistics, the Cleveland Fed, the Federal Reserve, and CNBC's reporting of CME FedWatch, verified October 3, 2026. JorgAI is a software tool, not an investment adviser. Trading involves risk of loss.