Though Supermicro has offered investors some signs of a turnaround in recent weeks, the company just got another bit of negative news last week: It will be exiting the Nasdaq 100 Index as of Dec. 23. This is part of the index's rebalancing, a time when certain stocks are added or removed.

Super Micro Computer shares slumped Monday morning as the stock felt the impact of a pair of headlines that came out after the bell Friday, including a potential capital raise and the stock's removal from the Nasdaq 100 Index.

A Nasdaq-100 index membership means mutual funds, exchange-traded funds (ETFs), and other financial products based on this index will have to buy shares of Palantir. This increased demand should exert at least some upward pressure on the stock price.

The server maker has been on a roller coaster, getting caught up in the excitement about artificial intelligence which helped shares lift to a March high, but worries about accounting dragged them back down.