Alva Review-Courier -

Another bout of selling gripped the U.S. stock market Friday, as anxiety mounts over whether the frenzy behind a swift, meteoric rise in GameStop and a handful of other stocks will damage Wall Street overall.

The S&P 500 dropped 1.9%, giving the benchmark index its biggest weekly loss since October. The Dow Jones Industrial Average and Nasdaq each fell 2%.

GameStop shot up nearly 70%, clawing back much of its steep loss from the day before, after Robinhood said it will allow customers to start buying some of the stock again. GameStop has been on a stupefying 1,600% run over the last three week...