Inflation came in hot on both lines, and the market sold the one trade that had been working. September's consumer price index rose 0.6% on the month and 3.7% on the year, up from 3.4% and above a 3.6% consensus, with core at 0.3% and 2.6% against 0.2% and 2.5%. Gasoline rose 9.1% in a month and the energy index is up 20.4% on the year. Thursday's producer price index was worse, up 1.3% against a 0.5% forecast and 6.3% on the year. Retail sales rose 0.8%, but gas stations drove most of it and the control group rose only 0.1%. Futures briefly put the odds of an October hike near 50% before settling around 17% by Friday, with about 89% for a hike by December. The bond market moved the other way as investors bought safety: the ten-year touched about 5.33% after the CPI report, then fell to 5.10%, down 15 basis points on the week. The chip trade broke. The semiconductor index fell 11.4% across eight straight losing sessions on doubts about AI infrastructure spending, CoreWeave lost about a quarter of its value, and the Nasdaq fell 4.5% to 26,140.03, ending a four-week winning streak. Oil added to it. Attacks on tankers in the Strait of Hormuz intensified, WTI rose 10.4% to $101.41, and Brent finished at $109.86 after briefly topping $110. The S&P 500 fell 2.0% to 7,659.44 while the Dow rose 0.7% to 52,002.41 on bank earnings and a rotation into defensives. The Russell 2000 fell 3.1% to 2,721.37, more than 11% below its August record and in correction territory.
The Russell crossed the line #039 measured. A week ago it closed about one point above correction territory; this week it fell 3.1% to 2,721.37, about 11.3% below the 3,068.42 record from #031, its second correction of the year after March. What makes the week instructive is that the ten-year fell 15 basis points while it happened. Lower long rates are the relief this library has waited for since #035, and they arrived alongside the worst small-cap week since the hike. The reason is the source of the move. Yields fell because investors were buying safety, not because inflation cooled, and a flight to safety sells the small, the levered, and the unprofitable before it sells anything else. A falling yield for the wrong reason is not a tailwind.
Inflation is now broad in the producer data and narrower in the consumer data, and the gap lands on the companies in between. Producer prices rose 1.3% in September and 6.3% on the year, with goods up 2.6% in a month, while core consumer prices rose 0.3%. That is the margin squeeze in numbers: costs arriving at the factory gate faster than they can be passed to the shelf. The Beige Book said it in words on Wednesday. Higher oil prices appeared in every district report, diesel was the most frequently cited cost, and consumer-facing firms often could not pass costs through. Retail sales confirmed the consumer side. The headline rose 0.8%, but the control group, which strips out gasoline, autos, and other volatile categories, rose 0.1% against a 0.3% forecast. Households are paying more for fuel and buying little more of anything else.
The rotation inside the large caps tells the rest. The Dow rose 0.7% for a second weekly gain, health care closed at a record on Thursday, and energy led on Friday, while 68 of the 75 technology stocks in the S&P 500 fell on Friday alone. Goldman Sachs earned $17.01 a share against estimates near $13 on a 72% jump in equities trading revenue. The market is not leaving equities; it is leaving duration and narrative for current cash flow, the same sort #039 described, now applied to technology itself. The hike path stays live underneath it. October odds swung from about 20% to 50% and back to 17% inside four sessions, December still prices near 89%, Cleveland Fed President Beth Hammack said more tightening is needed, and Chair Warsh declined to preview the decision. With WTI back above $100, the next inflation print starts higher.
Coverage ledger: the desk initiates coverage this week on RELL, Richardson Electronics, a debt-free manufacturer whose first fiscal quarter showed net sales up 18.9% to $64.9M and a backlog of $184.4M, up 36.9%. It belongs in this tape for both reasons the week exposed. The Beige Book named data centers, power generation, and defense as the strongest parts of manufacturing, the markets its newer products serve, while its largest segment sells into semiconductor equipment, the group that fell 11.4%; the dossier reads both sides. UTMD and ESP carry no debt and do not need a market that turned this hard against small caps. NEOV is the name most exposed to a risk-off small-cap tape, with a ramp funded by roughly $20M of equity in FY2026. BTBT sits next to the AI infrastructure trade that broke, with CoreWeave down about a quarter. LWAY and KRT face producer prices up 6.3% and a consumer whose spending outside fuel barely moved. IIIN reads through diesel, the most cited cost in the Beige Book. GLMD and ACON keep the cash floors that make the rate a question rather than a deadline. Full dossiers in the research library.
| Ticker | Company | Move | Why it moved |
|---|---|---|---|
| CPI | September Consumer Prices | 3.7% | Rose 0.6% on the month and 3.7% on the year against a 3.6% consensus, up from 3.4%; core rose 0.3% and 2.6% against 0.2% and 2.5%, gasoline rose 9.1% in a month, and futures briefly put October hike odds near 50% |
| PPI | September Producer Prices | +1.3% | Final demand rose 1.3% against a 0.5% forecast and 6.3% on the year, with goods up 2.6% in a month; retail sales rose 0.8%, but the control group rose only 0.1% against a 0.3% forecast |
| SOX | Semiconductor Index | -11.4% | Fell for eight straight sessions on doubts about AI infrastructure spending, including a Gartner estimate that more than $3.5 trillion of it could face impairment by 2030; CoreWeave lost about a quarter of its value and the Nasdaq fell 4.5% |
| WTI | Crude Oil | $101.41 | Rose 10.4% as attacks on tankers in the Strait of Hormuz intensified, and Brent finished at $109.86 after briefly topping $110 for the first time since May; the Beige Book cited higher oil prices in every district |
| RUT | Russell 2000 | -3.1% | Closed at 2,721.37, about 11.3% below its August record and in correction territory, even as the ten-year fell 15 basis points to 5.10% on a flight to safety; the Dow rose 0.7% for a second weekly gain |