Super Micro pops 15% after S&P 500 selection

Super Micro Computer stock popped 15% in premarket trading on Monday morning after the company was selected to join the S&P 500 later this month.Shares of the server and computer infrastructure have been up more than 20-fold during the last two years and over 200% since the start of the year.The record rally in Super Micro's stock, driven by the industry-wide artificial intelligence boom, has propelled the company's market cap above $50 billion. The median market cap for S&P 500 companies is $33.7 billion.S ...