Wall Street Bets and Gamestop stock, revisited

Remember early last year when stocks like Gamestop and AMC went through the roof, powered by people from the subreddit Wall Street Bets? Meme stocks and retail investors sticking it to hedge funds were the biggest stories in the world for a few months, but what happened when the hype died down? We wanted to revisit what happened, see if it is still happening, and ask if there have been any ripple effects since early 2021, so we called Dr. Samuel Rosen, Assistant Professor of Finance at Temple University's Fox School of Business.