Bitcoin broke below $90,000. Michael Saylor's MicroStrategy bought more than 20,000 bitcoin from Feb. 18 to Feb. 23. MicroStrategy shares fell 5% this morning. Is that why bitcoin is now plummeting?

Bank of America lowered its Coinbase price target to $311 per share from $363 while saying good things. The analysts kept their neutral rating. Bitcoin may be at the heart of the froth in the market.

Wall Street is heading for a relatively flat open today after a mixed session following Friday's selloff. The Nasdaq sank another 1.2% yesterday, extending its losing streak to three straight sessions.