By Liz Moyer
Investing.com -- GameStop Corp (NYSE:GME) plunged 63% Thursday morning after several brokerages blocked trading in the shares after a remarkable run of volatility.
The stock was halted multiple times in the morning. But they gained back some ground and are now down about 30% at around $238. They have risen more than 400% in just a week.
GameStop, AMC Entertainment Holdings Inc (NYSE:AMC), BlackBerry Ltd (NYSE:BB) and other stocks have been pushed higher by retail investors who are waging a war with professional traders over their bearish bets. AMC fell 49% on Thursday, and BlackBerry was down 36%.