US stocks were headed for their worst week since April as worries over lofty valuations deepened a pullback from the market’s most speculative corners, including technology shares and Bitcoin.
Futures on the S&P 500 fell 0.4% after erasing gains, underscoring the market’s fragility. Nasdaq 100 contracts slipped 0.7%. Bitcoin headed toward $82,000, extending its slump from an all-time high to more than 30%.
