The Fed's preferred inflation gauge came in soft this morning. Core PCE at 3.0%. The Street expected 3.3%. The S&P rallied 0.7% on the news. By the close, it was down a quarter of a percent. On the last day of Q3, with the best inflation data in months, the market still couldn't hold a bid.
The Close
The Dow fell 444 points. The S&P dropped 0.25% to close at 7,652. The Nasdaq was the only major index in the green, up 0.24%. It was the last day of Q3 — and the market finished it the way it spent most of September: selling.
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| Core PCE | 3.0% Y/Y | from 3.3% | ||
| Dow | 50,906 | −444 | ||
| Nasdaq | 26,861 | +0.24% | ||
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| Technology | +1.3% | |||
| Comm Services | +0.4% | |||
| Consumer Disc | +0.2% | |||
| Health Care | −0.3% | |||
| Utilities | −0.2% | |||
| Materials | −0.4% | |||
| Real Estate | −0.5% | |||
| Industrials | −0.7% | |||
| Consumer Staples | −0.8% | |||
| Energy | −1.0% | |||
| Financials | −1.2% | |||
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The morning felt different. Core PCE came in at 3.0% year-over-year, down from 3.3% and well below the 3.3% the Street expected. Month-over-month, core rose just 0.2% against a 0.3% forecast. Headline PCE fell to 3.4% from 3.7%. By every measure, the Fed's preferred inflation gauge said prices are cooling.
ADP private payrolls came in stronger than expected — 90,000 jobs in September, up from a revised 36,000 in August and above the 68,000 consensus. The labor market isn't cracking the way consumer confidence suggested yesterday. Jobs are still coming in.
The S&P opened up 0.4%. By midmorning it was up nearly 0.7%. Then the selling started. By 2:00 PM the gains were halved. By the close they were gone. The Dow, which was barely positive at the open, finished down 444 points — its worst day in weeks.
Five of 11 sectors finished positive at midday. By the close, only technology and a handful of others held on. The quarter-end rebalancing hit hardest in the final two hours as money managers dumped winners and repositioned for Q4.
Micron reports after the bell tonight. The AI memory trade gets its first real test of the season.
What The Market Is Pricing In
The S&P rallied 0.7% on the best inflation print in months, then gave it all back and closed down. That kind of reversal, on a day the data goes your way, tells you the market needs more than one number.
Here's the chain. Core PCE at 3.0% tells you inflation is fading. That should mean the Fed pauses in October. Traders pulled back their October hike bets this morning — the implied probability fell from the mid-60s to below 50% for the first time since the September 16 hike. That's the bullish read.
But the market couldn't hold it. And the reason is that one soft inflation print doesn't fix two bigger problems: the 10-year yield is still above 5.20%, and oil is still near $90. Inflation is cooling from 3.7% to 3.4% — but it's not at 2%. The Fed can pause, but it can't cut. And without cuts, yields don't come down, and the math that's been compressing valuations all month doesn't change.
The S&P 500 forward P/E dropped to 19 times from 22 times in two weeks. That repricing was driven by yields, not earnings. If yields stay at 5.20%, it doesn't matter that inflation is cooling — the bar for owning stocks is still the highest it's been in 19 years. A Fed pause is better than a hike, but it's not a cut. And cuts are what the market needs to re-expand multiples.
There's also the calendar. Today was the last day of Q3. Money managers were cleaning up their books — selling positions, locking in tax losses, rebalancing to benchmarks. That forced selling hit hardest in the last two hours, which is when the S&P went from up 0.4% to down 0.25%. When you see that kind of reversal on a day the data was favorable, it's the plumbing, not the news.
The forward read starts tonight with Micron. If AI demand is still accelerating, tech holds its bid and the Nasdaq keeps outperforming. If Micron misses, the last pillar holding up the index comes into question. Then Friday's jobs report either confirms the ADP signal — strong labor market, hot economy — or contradicts it.
One soft inflation print in late 2007 bought the market a brief rally too. The S&P gained 2% the week core CPI came in below expectations in November. Within three months the market was in free fall. The data wasn't the problem then. The plumbing was. Today the plumbing is yields at 5.20% and a consumer at a 12-year confidence low. One print doesn't fix that.
What's Next
Three things I'm watching this week:
01 — Micron Earnings (tonight, after close)
The first major AI earnings report of the season. Micron's data center revenue tells you whether the AI spending cycle is still accelerating or starting to plateau. After Nvidia's $150 billion buyback and Anthropic's $11.6 billion Akamai deal, the market has priced in durable demand. If Micron confirms it, tech gets a tailwind into Q4. If orders are slowing, the Nasdaq loses its edge over the rest of the tape.
02 — ISM Manufacturing (Thursday, October 1, 10:00 AM ET)
The first hard manufacturing read of Q4. September's PMI came in at 56.7 and rewrote the rate path. If ISM confirms that reading, the "economy too hot" story stays intact and the October hike stays on the table despite today's soft PCE. If it cools, the pause trade gains conviction. The 50 line separates expansion from contraction — anything above 53 keeps the pressure on.
03 — Nonfarm Payrolls (Friday, October 2, 8:30 AM ET)
The September jobs report is the last major data point before the October Fed meeting. ADP today showed 90,000 private jobs — above expectations. If Friday's number comes in above 150,000, the "hot economy, more hikes" narrative holds and yields stay elevated. If it misses below 100,000, the consumer confidence crash and the soft PCE start to look like the beginning of a real slowdown.
The market got the inflation number it wanted today. It still couldn't hold a rally. That tells you the problem isn't one data point — it's the whole setup.

That's it for today. See you tomorrow after the close.
