The last inflation number before the October Fed meeting came in hot. The US consumer price index climbed 0.6% in September, lifting the annual rate to 3.7% from 3.4% in August, the Labor Department said Wednesday. Economists polled by Reuters had expected 3.6%.
Underlying inflation ran hot too. Core CPI, which strips out food and energy, rose 0.3% on the month — against a 0.2% consensus — and 2.6% from a year earlier, up from 2.4% in August. Energy carried the headline: gasoline jumped 9.1% in a single month, accounted for more than half of September's increase, and the energy index rose 5.2%.
Wall Street repriced instantly. Nasdaq futures slid about 0.7%, S&P 500 futures about 0.4%, and the 2-year Treasury yield — the market's cleanest read on Fed policy — spiked 14 basis points to 4.93%.
The dollar went with it. The index rose 0.55% to 102.75, an 18-month high, while gold fell 1.6% to $4,088 an ounce.
Why it matters
This is the print that matters for stocks. A 0.6% monthly CPI gain annualizes near 7.5% — and when core joins in, equity multiples shrink because the discount rate on future earnings climbs. That is why the sell-off landed hardest on rate-sensitive tech: the iShares Semiconductor ETF dropped 1.9% in premarket trading, its seventh straight down day, with Intel and Micron down 2.5% and 1.5%. In Europe the picture differed — ASML raised guidance on surging demand and lifted AI-linked stocks — which tells you the pressure is American rates, not global tech demand.
The Fed math changed more than the stock math. Before the data, traders gave an October 27-28 rate hike roughly 22% odds and expected the Fed to wait until December.
Afterward, CME FedWatch showed about a 44-49% chance of an October hike, and a 96% chance of at least one increase by the December meeting, up from 88%. LSEG put the chance of a hold this month at around 47%, down from 78%.
Not everyone expects October to happen. Natixis' Christopher Hodge said the print is "far enough from consensus to make it a debate," though he thinks the Fed ultimately holds. But the direction is now settled: the September payroll miss no longer dominates the story, and the hawks have ammunition at the meeting.
What to watch
- Producer prices and retail sales land Thursday — a hot PPI would cement the October debate.
- The October 27-28 FOMC meeting: CME odds near 49% are live ammunition, not background noise.
- Fed commentary in the next two weeks: Chair Kevin Warsh's recent line is that the jobs side of the mandate is in good shape — a hot CPI print tests that stance.
- Shelter, up 0.4% in September for the fastest monthly gain in five months: if rent stops disinflating, core stays sticky.
MarketRadar take
The CPI scoreboard tells the whole story in one table:
| Measure | September | August | Consensus |
|---|---|---|---|
| Headline CPI m/m | +0.6% | +0.4% | +0.6% |
| Headline CPI y/y | +3.7% | +3.4% | +3.6% |
| Core CPI m/m | +0.3% | +0.3% | +0.2% |
| Core CPI y/y | +2.6% | +2.4% | +2.5% |
| Gasoline m/m | +9.1% | — | — |
The misses are all in the same direction: headline and core both beat consensus by a tenth on the annual rate, and core's monthly number matched August instead of cooling. That consistency is what moved odds, not any single line item.
Our read is bearish for US equities in the near term. Tech leads the pain because the Nasdaq's multiple is the most duration-sensitive asset in the market, and today's rotation — chips down while the broader market bends — is the textbook shape of a rates repricing. The neutral scenario needs PPI to run cold tomorrow and Fed officials to keep the bar for October high. Absent that, the path of least resistance is higher yields and a heavier dollar, which is exactly what broke gold's $4,100 handle this morning.
