S&P 500, Nasdaq Futures Fall as Alphabet Results Revive AI Spending Concerns

U.S. stock futures declined late Wednesday after disappointing Alphabet earnings renewed concerns about the financial demands of artificial intelligence investment. Nasdaq-100 futures fell 1.2% and S&P 500 futures lost 0.5%, according to Stocktwits, reversing the direction of an otherwise positive session on Wall Street.

The pullback followed modest gains during regular trading on October 28. The S&P 500 finished 0.3% higher, the Nasdaq 100 advanced 0.5% and the Dow Jones Industrial Average added 0.2%. The subsequent retreat in futures suggested that investors were reassessing technology earnings rather than simply extending the market’s initial response to the Federal Reserve.

The central bank maintained its federal funds target range at 3.75% to 4%, according to its policy statement. That left the benchmark borrowing-cost range unchanged while corporate results supplied a separate test for equity markets. A steady policy rate does not resolve questions about how quickly companies can turn large infrastructure commitments into sustainable profits.

Alphabet shares dropped about 11% after hours, Stocktwits reported, as AI infrastructure spending and investment losses pressured profitability despite growth in advertising and cloud services. Separately, The Associated Press reported that quarterly revenue increased 25% to $127.58 billion, while earnings of $2.12 per share fell below analysts’ expectations of roughly $3.01. The figures highlighted the distinction between expanding sales and meeting investors’ profit expectations.

The earnings miss put the economics of the AI buildout back at the center of the market discussion. Strong demand can support a company’s growth case without settling whether its spending is producing sufficient near-term returns. Alphabet’s reaction illustrated why investors may scrutinize profitability alongside revenue when evaluating the technology industry’s investment cycle.

Other corporate updates offered a counterpoint. Microsoft shares gained about 3% after hours after results exceeded expectations, while Oracle rallied about 11% during Wednesday’s session following an upbeat cash-flow outlook, according to Stocktwits. Those divergent moves suggested that investors were distinguishing between companies’ financial performance rather than responding uniformly to their exposure to AI.

Nvidia and Marvell also remained in focus. Stocktwits reported that Nvidia slipped about 1% amid reports of Justice Department inquiries into its planned Hugging Face acquisition, while Lumentum rose about 10% after hours on a report of acquisition talks with Marvell. The reported regulatory inquiry and deal discussions represent separate uncertainties from the earnings and spending questions facing cloud operators.

The next trading session will test whether the futures decline carries into the cash market and whether Alphabet’s weakness spreads more broadly. After-hours prices provide an early indication of investor reaction, not a settled outcome for the following day. For now, the contrasting responses to Alphabet, Microsoft and Oracle frame the central question: whether AI-driven growth can support the spending required to deliver it.