Super Micro shares are down more than 80% since the company joined the S&P 500 in March. That poor performance could catch the eye of the index committee, an expert said.

Super Micro Computer (NASDAQ: SMCI) stock saw another day of big sell-offs in Thursday's trading. The company's share price closed out the daily session down 11%. Supermicro stock fell today after Cisco made new comments about its plans to move into the artificial intelligence (AI) server market.

Like a frog in a pot of boiling water, things keep getting more uncomfortable for Super Micro Computer (NASDAQ: SMCI) as times goes on. Supermicro's growing accounting debacle began in late August as the target of a short report from Hindenburg Research.