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The Nasdaq Composite fell 1.9% as September consumer inflation came in above Wall Street expectations, prompting a sharp but uneven move in Treasury yields. Technology and AI-linked shares weakened, while investors looked ahead to producer-price and retail-sales reports for further clues about inflation and Federal Reserve policy.
U.S. stocks fell Wednesday after the government reported that consumer prices rose faster than Wall Street forecast in September, jolting Treasury yields and weighing especially on technology and other shares tied to the artificial-intelligence buildout. The Nasdaq Composite dropped 1.9% to 26,692, while traders reassessed the inflation outlook and the likely path of Federal Reserve interest rates.
The S&P 500 fell 1.1% to 7,719, while the Dow Jones Industrial Average slipped 0.09% to 51,622. The sharpest weakness was concentrated in technology and related industries, alongside a seventh consecutive losing session for chipmakers, according to the report. Healthcare, consumer staples and energy shares attracted buyers as investors shifted toward areas seen as less exposed to the day’s risk-off move.
The CPI release triggered an early jump in shorter-term borrowing costs. The two-year Treasury yield briefly rose by more than 10 basis points within minutes, then gave back ground during the session. At the close, it was reported at 4.808%, up 1.5 basis points. The 10-year yield ended down 2.7 basis points at 5.19%, and the 30-year yield fell 4.6 basis points to 5.517%, illustrating the volatility across the bond market.
Chip-equipment maker ASML fell 3.9% despite reporting third-quarter revenue growth of 47% and earnings growth of 127%. The company slightly missed revenue expectations but beat earnings estimates and raised its fourth-quarter sales guidance. It also said meeting customer demand in 2027 and 2028 would be difficult. Nvidia fell 3.2%, and Caterpillar, another company linked to AI infrastructure spending, lost 3.1%.
Inflation Recasts Rate Expectations
The report matters because inflation readings influence expectations for Federal Reserve policy, which in turn can affect borrowing costs, corporate financing and the prices investors are willing to pay for shares. When inflation proves stronger than expected, markets may anticipate rates staying higher for longer or consider the possibility of further tightening. That possibility can weigh particularly on growth and technology stocks, whose valuations are often sensitive to interest-rate expectations.
The market move was not a uniform selloff: the Nasdaq’s larger decline contrasted with a modest dip in the Dow, while several defensive sectors gained. The bond market’s mixed closing moves also show that one day’s price action does not settle the policy outlook. The data added concern, but investors still need further reports to judge whether September was part of a persistent inflation trend.
AI-linked shares also faced company-specific questions alongside the inflation shock. ASML’s outlook pointed to robust demand for semiconductor equipment, but the company flagged limits on its ability to meet future orders. Investors are weighing that demand signal against risks to shipments and the broader sensitivity of technology stocks to rates.
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The Signals Behind Wednesday’s Selloff
September’s CPI report came in hotter than forecast, according to the source report, though the supplied material does not give the exact inflation rate or the size of the gap against expectations. Barclays economist Pooja Sriram said the figures were unlikely to give policymakers much comfort. She pointed to risks economists had flagged, including energy costs feeding into core prices, resilient consumer spending and possible AI-related price pressures.
Sriram also cautioned that favorable base effects could mechanically lower annual inflation rates next year, while recent readings cast doubt on how much progress is being made on underlying inflation. Those are her assessments of the data, not a conclusion established by the market moves alone.
Company and regulatory developments added to the day’s crosscurrents. ASML’s results included strong earnings growth and higher fourth-quarter sales guidance, but its shares fell amid broader weakness and investor concerns that included restrictions on shipping deep-ultraviolet lithography tools to China. Separately, Bank of America dropped 4.7% after news of a $1.2 billion Treasury Department fine for anti-money-laundering violations previously identified in a December 2024 consent order. The fine was reported to reduce earnings by 17 cents per share.
“On balance, this morning’s inflation data are unlikely to provide much comfort to policymakers.”
— Pooja Sriram, Barclays economist
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Inflation and Policy Risks Remain Open
The supplied report does not include the exact September CPI figures, the forecast used for comparison, or a detailed breakdown of which price categories drove the surprise. It therefore does not establish how much of the increase came from energy, services or other components. The possible role of AI-related pricing pressure is an economist’s concern cited by the report, not a measured cause demonstrated in the material.
Market pricing also remained unsettled. CME FedWatch showed a 34.9% probability of a 25-basis-point rate hike at the October 27-28 Federal Reserve meeting, up from 22.1% on Tuesday. That is a market-implied probability, not a Fed decision or a guarantee that rates will rise. The report does not state what the central bank will do or how officials will interpret the data.
For ASML, the report gives no detailed estimate of the scale or timing of any shipping constraints, and the effects of China-related restrictions remain uncertain. For Bank of America, the fine’s amount is reported, but how long the consent order will remain in place and whether it could restrict operations are unresolved questions identified by Chiaverini.
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Next Inflation and Spending Reports
Investors were due to receive September Producer Price Index and retail-sales data before Thursday’s market open, according to the report. The releases could add information about price pressures earlier in the supply chain and the strength of consumer spending, both of which factor into assessments of inflation and economic demand.
Markets will also watch subsequent Treasury trading and Federal Reserve communications for signs of how policymakers view the latest CPI reading. The immediate question is whether September marks a setback in inflation progress or a move that is offset by later data. Until those signals arrive, rate expectations and AI-linked shares may remain sensitive to fresh economic and company news.
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Key Questions
Why did the Nasdaq fall on Wednesday?
The Nasdaq fell 1.9% after September consumer prices rose faster than Wall Street expected. The inflation surprise pushed Treasury yields sharply higher at first and weighed on technology and other growth-sensitive shares.
Did Treasury yields rise across the board?
No. The two-year yield briefly jumped more than 10 basis points after the CPI release, then eased. By the close it was up 1.5 basis points, while the 10-year and 30-year yields finished lower.
What did ASML report?
ASML reported 47% third-quarter revenue growth and 127% earnings growth. It slightly missed revenue expectations, beat earnings estimates and raised its fourth-quarter sales guidance, while saying it could struggle to meet demand in 2027 and 2028.
Does the market expect the Fed to raise rates?
CME FedWatch showed a 34.9% market-implied probability of a 25-basis-point hike at the October 27-28 meeting, up from 22.1% the previous day. That estimate reflects market pricing, not an announced Federal Reserve decision.
What market data were due next?
September Producer Price Index and retail-sales data were scheduled for release before Thursday’s opening bell. Investors were looking to both reports for further clues about inflation, consumer demand and interest-rate expectations.
Source: rss
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