Why Super Micro Computer Stock Gave Up Early Gains and Fell Double Digits Today

Shares of Super Micro Computer (SMCI -6.81%) were all over the stock charts today as the artificial intelligence (AI) stock was officially added to the S&P 500 index.Supermicro, as the the maker of AI servers and storage equipment is known, initially jumped on the news, gaining as much as 7.4% at the open, but slid over the course of the morning, and was down 10% by 1:05 p.m. ET. Why Supermicro couldn't hold onto its gainsSupermicro has been one of the biggest winners in the AI boom over the last year, but ...