Stocks Head for Worst Week Since April on AI Slump: Markets Wrap

Stocks are poised for their worst week in seven months as concerns over lofty valuations and whether massive investments in artificial intelligence will pay off prompt investors to retreat from riskier assets.

The MSCI All Country World Index has fallen almost 3% this week, putting it on track for its sharpest weekly drop since April 4, when President Donald Trump’s tariffs rattled markets. Asian shares slumped 1.6% on Friday — also heading for their weakest week since April — after Wall Street indexes retreated on Thursday. Adding to the cautious mood, cryptocurrencies dropped, with Bitcoin trading below $86,000.

The ...