Meme stock mania is back in full force as billionaire investor Ryan Cohen sold his ten percent stake in Bed Bath & Beyond, pocketing over $60 million dollars in the process. Meanwhile, fellow meme stocks Gamestop and AMC tumbled alongside Bed Bath & Beyond. What should meme stock investors watch out for, and is this movement a sign that meme stocks are no longer just a pandemic-era fad? Peter Cohan, Associate Professor of Management Practice at Babson College, joins Closing Bell to discuss.