ECB Economists Warn US Tech Stocks Face Likely Correction

Optimism over artificial intelligence has lifted US technology valuations and increased market concentration, with the Magnificent 7 accounting for roughly 40% of the S&P 500. The exposure extends beyond Wall Street: euro-area funds and households hold substantial US equity positions, leaving European wealth, financing conditions and investor confidence vulnerable to a sharp repricing of AI-related stocks.

European Central Bank economists said on Aug. 17 that the boom-and-bust pattern surrounding US technology shares made a correction likely. Euro-area investors’ holdings of US equities have quadrupled over the past decade. A reversal in fund flows could be amplified by limited cash buffers and pockets of leverage, while constrained fiscal and monetary policy capacity may leave authorities with less room to cushion the economic fallout.