October CPI, Fully Analyzed
With energy cooling, three months of 0.3% core came into view — and the December 50bp debate began
① October CPI, released November 10, rose 0.4% headline and 0.3% core month over month, both 0.1 point above forecasts. Headline cooled from September's 0.6%, but almost all of that came from energy.
② Core printed 0.3% for a third straight month. Stretched over a year, that pace is about 3.7%, more than a point above September's 2.6% year-over-year core. It describes inflation picking up speed, not slowing down. Because of the 2025 shutdown, no year-over-year figure was published this month, so the signal can only be read in the monthly numbers.
③ Hours earlier, Governor Waller said a 50bp hike should be considered in December if core came in "around 0.3 percent or even higher." It landed right on that line. The tail of the market's December distribution flipped: the roughly 15% that sat on "hold" before the release moved to a roughly 15% chance of a 50bp hike after it.
October CPI is the last consumer price report before the December FOMC (Dec 8–9); November CPI comes out on December 10, the day after the decision. So this print was read less as "will they hike?" and more as "by how much?" Our previous piece (The October FOMC, Dissected) concluded that the hike wasn't cancelled but moved to December. This CPI did not overturn that; it pushed it one step further. For the basics of reading CPI, see our economic indicators calendar guide.
📋 The release at a glance
| Measure (m/m, seasonally adjusted) | September | October | Consensus |
|---|---|---|---|
| Headline CPI | +0.6% | +0.4% | +0.3% |
| Core CPI (ex food and energy) | +0.3% | +0.3% | +0.2% |
| Headline, year over year | 3.7% | Not published (shutdown gap) | — |
| Core, year over year | 2.6% | Not published (shutdown gap) | — |
| Real average hourly earnings | — | Flat (wages +0.4% = CPI +0.4%) | — |
Consensus is the Dow Jones survey. Year-over-year figures are from the September release.
🕳️ No "year over year" this month — the hole the shutdown left
The first number in most CPI headlines is the annual rate. This month it is missing. During the federal shutdown from October 1 to November 12, 2025, the Bureau of Labor Statistics did not collect October 2025 prices, so there is no year-earlier value to compare against. BLS said it would not publish 12-month changes for indexes lacking October 2025 data. Only a few items, such as gasoline (+37.4% year over year), still carry one.
That gap matters because the annual rate is a lagging read on direction. It is the sum of twelve monthly moves, so it responds slowly when recent months heat up. Looking only at September's 2.6% core, it is easy to think inflation is not far from 2%. This month that cushion was gone, markets had only the monthly numbers to go on, and the monthly numbers told a less comfortable story.
Before the release, Bank of America estimated October year-over-year rates of 3.8% headline and 2.7% core by interpolating the missing period. That is one firm's pre-release estimate, not official data. Official annual rates return with November CPI on December 10.
🔍 Category by category — who filled the space energy left?
Headline slowing from 0.6% to 0.4% was almost entirely energy. Other categories filled the space it left.
| Category | Sep | Oct | How to read it |
|---|---|---|---|
| Energy | +5.2% | +0.7% | The main reason headline cooled |
| └ Gasoline | +9.1% | +1.0% | −0.7% before seasonal adjustment |
| └ Electricity | — | +0.9% | The one energy item that sped up |
| Food | 0.0% | +0.5% | Groceries +0.4%, restaurants +0.5% |
| Shelter (35.2% weight) | +0.4% | +0.3% | Slower, but over 30% of the monthly increase |
| └ Owners' equivalent rent | +0.3% | +0.3% | Unchanged |
| Transportation services | +0.6% | +0.8% | Accelerating for three months, from +0.5% in August |
| └ Motor vehicle insurance | +0.1% | +0.7% | The core of that acceleration |
| Used cars and trucks | +0.7% | −1.2% | Turned down, calming goods prices |
| Core goods | +0.3% | +0.2% | Slower thanks to used cars |
| Core services ex energy services | +0.4% | +0.3% | Slower, still elevated |
| Medical care services | +0.3% | +0.3% | Unchanged (hospital services +0.8%) |
The key question is why the forecast missed. For core to fall to 0.2%, used cars had to drop on the goods side and shelter had to cool on the services side. Both happened: used cars fell 1.2% and shelter eased from 0.4% to 0.3%. Core still printed 0.3%. When both expected sources of relief show up and the number does not come down, everything else must have risen by that much. Car insurance (+0.7%), lodging (+0.6%), recreation (+0.8%) and household furnishings (+0.7%) were there.
Gasoline rose 1.0% after seasonal adjustment, but actual pump prices fell 0.7% before adjustment. October normally brings cheaper fuel, so seasonal adjustment lifted the number. People felt more relief at the pump than the index shows, and headline fell less on paper than it did in practice.
📐 Three months of 0.3% — what a 3.7% annualized pace means
A 0.3% monthly core reading is not huge on its own. The problem is that it is the third in a row. Three months at 0.3%, stretched over a year, is about 3.7%. That is an estimate from rounded monthly figures, not an official statistic, but it is enough to read direction.
| Core CPI measure | Value | What it shows |
|---|---|---|
| Year over year (September) | 2.6% | Average pace over the past 12 months |
| 3-month annualized (Aug–Oct, est.) | ≈3.7% | Pace over the most recent three months |
| Fed target | 2% | — |
When the recent three-month pace runs more than a point above the 12-month average, the monthly readings piling up now will push the annual rate higher. When year-over-year figures return on December 10, they are likely to start above September's 2.6%. That makes it hard for the Fed to say inflation is converging on target.
When we wrote our July CPI and PPI analysis in August, headline at 3.4% still read as "coming down," and the worry sat in PPI. Three months later, consumer core itself has hit the same pace three times, and that is the evidence of sticky inflation.
The day before the release, Chicago Fed President Goolsbee said inflation was "starting to look more just like old-fashioned demand overheating," pointing to the AI data-center build-out. Electricity's +0.9% this month points the same way, but this release alone does not establish that link. Goolsbee does not vote in 2026; he votes in 2027.
🗣️ Waller's line — why 50bp is now on the table
Part of why this print landed so hard is timing. In a London speech a few hours before the release, Governor Waller said two things:
- "I am leaning toward supporting an increase in our policy rate of 25 basis points at the FOMC's December meeting."
- If October data looked like the past two months, with core CPI "around 0.3 percent or even higher," then "a 50 basis point hike in the policy rate should be considered at the December meeting." He added that a quarter point alone could "put our credibility at risk."
A few hours later core came in at exactly 0.3%. A voting governor had published his threshold in advance, and the data stepped right onto it. That is why markets read this as more than "0.1 point above forecast."
| December FOMC scenario (CME FedWatch) | Before the release | After (pre-open) |
|---|---|---|
| Hold | ≈15.6% | — |
| 25bp hike (→ 4.00–4.25%) | ≈84.4% | ≈84% |
| 50bp hike (→ 4.25–4.50%) | 0% | ≈15% |
"Before" is a report citing CME FedWatch at 00:38 ET on Nov 10; "after" is Yahoo Finance's live coverage at about 8:50 a.m. ET. Sources and times differ, so the comparison is approximate.
The odds of a 25bp hike barely changed, staying near 84% before and after. What changed was the direction of the remaining 15%. Before the release it sat on "they might not hike." Afterward it sat on "they might hike more." The base case held, but the risk shifted from the dovish side to the hawkish side. These are live market prices, not Fed decisions.
📈 First market reaction — short rates moved most
These figures run from the release into the early session. They are intraday and may differ at the close.
| Market | Move | Time (ET) |
|---|---|---|
| 2-year Treasury yield | +15bp or more, 4.70% | 08:41 |
| 5-year Treasury yield | +10bp, 4.75% | about 08:50 |
| 10-year Treasury yield | +7bp, 4.93% | about 08:50 |
| 30-year Treasury yield | +3bp, 5.29% | about 08:50 |
| Dow | −0.2% | about 09:32 (early trade) |
| S&P 500 | −0.5% | about 09:32 (early trade) |
| Nasdaq | −0.8% | about 09:32 (early trade) |
The shape of the yield moves sums up the message. The shorter the maturity, the bigger the rise (2-year +15bp, 30-year +3bp). Markets put a near-term rate hike back into prices. The long end moving less fits the pattern from our long-yield analysis: long rates are tied more to fiscal and oil factors than to Fed odds.
In stocks, the Nasdaq, heavy in rate-sensitive growth names, fell most, and the Dow, with more cyclical and value names, fell least. That is the typical order for a rate-hike signal.
Nvidia kept sliding after falling more than 4% the day before, but coverage tied that to a company-specific issue, not CPI. Oil also fell about 3%, which reflects the crude market itself. Attributing every index move to the inflation data would be over-reading it.
🧭 Three paths to the December FOMC
Two big data points remain before the December 9 decision: October PPI on November 13 and the November jobs report on December 4. The probabilities below are current market prices, not our own estimates.
| Scenario | Current market price | What it would take |
|---|---|---|
| A. 25bp hike (4.00–4.25%) | ≈84% | PPI and jobs within expectations. The current base case |
| B. 50bp hike (4.25–4.50%) | ≈15% | Core PPI jumps again or jobs come in strong, cementing a fourth 0.3%. Watch whether officials beyond Waller back 50bp publicly |
| C. Hold | ≈1% (the remainder after 25bp and 50bp) | A shock bigger than inflation, such as a sharp jobs slump or a market sell-off. The path this CPI pushed furthest away |
① September's 25bp hike was unanimous, and in October only Cook and Hammack wanted to hike. Waller is so far the only official to raise 50bp publicly. Whether the committee goes that far is not established.
② With no year-over-year figure, the Fed also has to judge from monthly numbers this time. Whether officials weight "2.6% core" or "3.7% three-month annualized" more heavily in the December dot plot is what will decide the outcome.
🧩 Checkpoints for overseas investors
- Check rate-sensitive exposure: the Nasdaq fell about four times as much as the Dow on this print. If growth stocks or leveraged ETFs are a large share of your holdings, expect similar swings on each data release before December.
- Short rates move first: a 2-year yield up more than 15bp in one session means hike expectations repriced immediately. On the next release, check the 2-year before stocks to see how markets read the number.
- Watch the currency separately: US rate-hike expectations usually support the dollar, but USD/KRW also reflects Korean factors. Returns in won terms are the US index move plus the currency move. See our FX risk guide.
- Real income is flat: hourly wages (+0.4%) matched inflation (+0.4%), so real hourly pay did not grow. Keep that in mind when looking at US consumer stocks: nominal income is rising, purchasing power is not.
📌 What to watch next
| Date | Event | What to look for |
|---|---|---|
| Nov 11 (Wed) | Veterans Day, bond market closed | A one-day pause after the CPI repricing |
| Nov 13 (Fri) | October PPI | Whether core PPI confirms sticky core CPI |
| Dec 4 (Fri) | November jobs report | The last big data point between scenarios B and C |
| Dec 8–9 | December FOMC and dot plot | Size of the hike, and how many more next year |
| Dec 10 (Thu) | November CPI | Annual rates return; do they start above 2.6%? |
For how the FOMC works, see our FOMC guide; for September's hike and dot plot, see The September FOMC, Dissected.
October's headline slowdown is mostly an energy effect. The real signal is core at 0.3% for a third month. Both expected sources of relief, falling used-car prices and cooling shelter, showed up, and core still did not come down. A December hike was already the base case. What this print changed is the question itself: 25bp or 50bp.
Written November 10, 2026, based on coverage through about 9:40 a.m. ET (11:40 p.m. KST) that day. Index and yield figures are intraday and may differ at the close. The 3.7% three-month annualized core figure is an estimate from rounded monthly data, and Bank of America's year-over-year estimates are not official statistics. Probabilities come from news coverage and vary by outlet and time. This article is for informational purposes only and is not a recommendation to buy or sell any security or asset. Investment decisions and their consequences are the investor's own responsibility.
- Stocktitan — CPI Report Shows Core Prices Up 0.3% Again, Hitting Waller's Line for Weighing a Half Point Hike
- MLQ — October CPI runs hotter than expected as core inflation hits Waller's threshold for a half-point hike
- Yahoo Finance — Stock market today: Dow, S&P 500, Nasdaq sink after CPI data raises Fed rate-hike bets
- CNBC — A key report for where inflation stood in October comes out Tuesday (preview, Goolsbee remarks, BofA estimates)
- TechFlow — CME FedWatch: December Fed rate hike probability rises to 84.4% (pre-release odds)
※ This report is provided for informational and educational purposes only and does not constitute a recommendation to buy or sell any security.
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