AI Stock Rout Deepens as Investors Question Big Tech Spending

The selloff grew out of a widening gap between enthusiasm for artificial intelligence and confidence in its financial returns. Investors were questioning whether the billions going into AI could generate returns quickly enough, according to The Guardian, which reported that selling began earlier in October before disappointing earnings accelerated it.

The commitments are enormous. The Next Web, citing reporting by Bloomberg, said Alphabet, Meta, Microsoft, Amazon and Oracle had committed more than $3 trillion to future spending on data centres, leases, equipment and energy. Those are future commitments, not a measure of money already spent.

The earnings picture was not simply one of falling sales. The Hindu reported that Alphabet's revenue grew 25 percent and Google Cloud revenue more than doubled. Yet infrastructure spending was weighing on cash flow, while AI-powered search raised questions about the future of its business.

On October 30, earnings from Amazon and Alphabet helped fuel a broad technology selloff as investors reconsidered the cost of their AI ambitions, Yahoo Finance reported. Alphabet lost roughly $500 billion in market value, according to Gizmodo.

Intel added a separate set of concerns. MarketWatch reported that it was struggling to make enough AI server chips while facing a weak PC market. Its shares sank 28 percent as its outlook missed estimates, according to Business Line, which also reported that Amazon fell amid greater capital spending.

By the end of Friday, October 30, the S&P 500 had fallen 1.8 percent, its worst day since June, according to the South China Morning Post. Estimates of the technology sector's losses varied with timing and scope: The Guardian described nearly $1 trillion erased, while Technology reported more than $1 trillion.

On October 31, the cash consequences came into sharper focus. The Next Web reported that Microsoft, Alphabet, Amazon, Meta and Oracle returned just 9.3 percent of the cash their businesses generated to shareholders during the first nine months of 2026, down from 27.4 percent and the smallest share in at least 15 years.

By November 1, the biggest AI and chip stocks had shed about $5 trillion since October 6, according to calculations by Yahoo Finance. That longer-period estimate is different from Friday's roughly $1 trillion selloff. Meanwhile, The Wall Street Journal reported that investors, traders and technology executives were seeking protection against further losses.

The pressure had spread into Asian trading by November 2. World News CNA reported that Asian shares were bending under AI stress, with Apple earnings still ahead. The Economic Times reported that concerns about negative cash flow and the scale of AI capital spending had also pushed up the cost of insurance against corporate defaults the previous week.

The coverage establishes a major repricing of AI-related shares, not that AI demand or commercial benefits have disappeared. CNBC Technology reported on November 1 that Santander, Novartis and other companies said AI was beginning to boost revenue, cut costs or improve profitability. Those reported gains coexist with investors' doubts about the price and pace of the infrastructure build-out.

Apple's forthcoming earnings are the next named company event in the coverage, according to World News CNA. They arrive as investors scrutinise technology earnings for evidence that spending can translate into cash rather than merely stronger revenue.

AMD's results will also test whether Intel's difficulties are company-specific or more widespread. MarketWatch reported that investors would soon learn how far AMD faced the same AI server chip supply problems and PC market weakness.