Palantir, which is preparing to join the Nasdaq 100, is down Monday. Palantir stock shed more than 4% to 72.67 in midday trade after Nasdaq Inc. said the shares will be added to the Nasdaq 100 before the market opens Dec.

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.

Some 40% of MicroStrategy's bitcoin position has been acquired in the past 40 days, wrote Bernstein analysts on Monday. Within the past month alone, MicroStrategy purchased more than 100,000 bitcoins for $10.5 billion, SEC filings show.