U.S. stocks declined on Thursday, October 22, as renewed concerns over artificial intelligence investments and disappointing reactions to corporate earnings weighed on technology shares, while rising oil prices added to uncertainty across financial markets.
The S&P 500 fell approximately 0.9%, while the technology-heavy Nasdaq Composite lost 1.5%. The Dow Jones Industrial Average also traded lower, extending a period of volatility as investors reassessed earnings expectations and the financial commitments associated with AI expansion.
Technology, communication services and consumer discretionary stocks were among the weakest sectors, while consumer staples showed greater resilience.
Meta and Tesla Weigh on Technology Stocks
Meta Platforms shares dropped approximately 6%, despite reporting a 26% increase in third-quarter revenue to $64.6 billion, above analysts’ expectations.
The company also reported a sharp increase in net income, although operating profit declined 37%, reflecting a substantial legal settlement charge. Meta raised the lower end of its 2026 capital expenditure forecast to $135 billion, maintaining the upper limit at $145 billion.
The results highlighted the contrast between strong revenue growth and the substantial costs associated with the company’s broader investment strategy.
Tesla shares fell around 2.4% as investors assessed its latest earnings and capital spending plans. The electric vehicle manufacturer reported quarterly investment below expectations, raising questions about the timing of spending on future projects.
The market reaction to both companies reflected growing scrutiny of whether ambitious technology investments will generate sufficient financial returns.
Semiconductor Stocks Extend Declines
Selling pressure also continued across semiconductor stocks, a sector that has been central to the expansion of artificial intelligence infrastructure.
Lam Research shares plunged more than 10% after the semiconductor equipment manufacturer issued an outlook that disappointed investors.
Nvidia declined approximately 1.7%, extending pressure on companies closely associated with AI computing demand. IBM also fell 2.1% following its quarterly earnings announcement.
The declines came amid broader concerns about the sustainability of AI-related capital expenditures and the pace at which technology companies can convert infrastructure investment into revenue and profits.
Investors have become increasingly sensitive to earnings forecasts and spending commitments, particularly among companies whose valuations reflect expectations of sustained AI growth.
Oil Prices Rise as Middle East Risks Escalate
Energy markets moved in the opposite direction as crude oil prices climbed amid renewed geopolitical tensions in the Middle East.
Brent crude traded above $111 a barrel, while U.S. West Texas Intermediate approached $100, following reports of attacks targeting Saudi energy infrastructure and concerns about potential further escalation involving Iran.
Higher oil prices can increase transportation and production costs, potentially adding pressure to inflation and complicating the outlook for monetary policy.
The developments added another source of uncertainty for equity markets already facing questions about corporate profitability and technology valuations.
Lockheed Martin Gains as Honeywell Slips
Outside the technology sector, corporate earnings produced mixed market reactions.
Honeywell shares declined approximately 0.5%, despite the industrial conglomerate raising its full-year financial outlook.
In contrast, Lockheed Martin gained around 8.6% after the defense contractor reported earnings and revenue above market expectations.
The divergence highlighted how investors were responding differently to individual company results, even as broader market sentiment remained negative.
Investors Reassess Earnings and AI Spending
Thursday’s market performance underscored the growing importance of corporate earnings in determining the direction of U.S. equities.
Technology companies remain major drivers of market valuations, but investors are increasingly examining the relationship between capital expenditures, operating profitability and future returns.
At the same time, geopolitical developments and higher energy prices are introducing additional risks to the economic outlook.
The combination of earnings uncertainty, pressure on semiconductor stocks and rising oil prices suggests that volatility could remain elevated as investors evaluate upcoming corporate results and the Federal Reserve’s next interest rate decision.
Sources: Reuters, October 22, 2026; MarketWatch, October 22, 2026; Barron’s, October 22, 2026; Meta Platforms, Third Quarter 2026 Financial Results; Trading Economics.
