Wall Street ended sharply lower on Friday, October 16, with artificial intelligence-related technology stocks coming under renewed pressure and concerns about debt-laden AI infrastructure companies weighing on investor sentiment heading into the weekend, according to an Economic Times Markets report.

The S&P 500, the Dow Jones Industrial Average and the Nasdaq Composite — the three benchmark gauges of US equities — all recorded substantial losses in the session. The report did not provide specific closing figures for the indexes.

Oil prices added to the pressure, with crude climbing above $110 per barrel. The report said the rise in oil fueled market fears about economic stability and rising borrowing costs. Moves of that magnitude in crude tend to ripple beyond energy markets, since fuel and transport expenses feed into the broader cost structure of businesses and households.

Concerns about the AI trade have centered on the substantial debt taken on by companies building data centers and computing capacity to support artificial intelligence services — a financing model that draws closer scrutiny whenever borrowing costs are expected to climb. Elevated oil prices are also closely watched by investors because higher energy costs can feed into inflation and shape expectations for interest rates, linking the session's two pressure points to the same underlying question of where borrowing costs head next. That leaves crude's ability to hold above the $110 mark and the flow of news around AI infrastructure financing in focus as markets move into the new week.

Source: Economic Times Markets — US stocks: US market ends down sharply; worries about AI trade and high oil prices weigh