A GameStop store on 14th Street at Union Square, Thursday, Jan. 28, 2021, in the Manhattan borough of New York. (AP Photo / John Minchillo)

It’s a fable for our times: Small-time investors band together to take down greedy Wall Street hedge funds using the stock of a troubled video-game store. But the revolt of online stock-traders suggests much more. 

Pedestrians pass the New York Stock Exchange, Wednesday, Jan. 27, 2021, in New York. (AP Photo / John Minchillo)

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.

This Dec. 17, 2020 file photo shows the logo for the Robinhood app on a smartphone in New York. The online trading platform Robinhood is moving to restrict trading in GameStop and other stocks that have soared recently due to rabid buying by smaller investors. (AP Photo/Patrick Sison)

GameStop stock has rocketed from below $20 earlier this month to close around $350 Wednesday as a volunteer army of investors on social media challenged big institutions who had placed market bets that the stock would fall.