Super Micro Computer, the server maker that has delayed filing its earnings for the past fiscal year, was heading higher on Tuesday after gaining almost 10% to start the week. The stock, which was the most volatile in the S&P 500 index last year,

Super Micro Computer Inc. stock was rising ahead of the opening bell, putting the server maker on course to build on Friday’s double-digit gains. Super Micro was the most volatile S&P 500 stock last year,

It's been a topsy-turvy year for Super Micro Computer ( SMCI 10.91%). Once seen as the next big artificial intelligence (AI) stock, it has come crashing down to reality in recent months due to concerns about the reliability of its numbers and accounting controls.