Market Extra: Is the trading in GameStop and AMC a major risk? Analysts weigh in

A mania is under way on Wall Street that is being heralded by some as a revolution of individual investors against pros, but there are concerns that the recent flurry of activity could end badly.

A mania is under way on Wall Street that is being heralded by some as a revolution of individual investors against pros, but there are concerns that the recent flurry of activity could end badly.