Super Micro Computer, Inc. (SMCI) was the most-shorted S&P 500 stock in April, contributing to recent share price declines. Despite a bullish note from an investment bank sparking a rally, concerns persist about the company’s valuation and market position. Analysts monitor key levels as the stock has gained 40% this week. The recent DataVolt deal is considered significant for the company’s growth strategy. — new from Barron’s