MicroStrategy’s fans hold a feverish allegiance to the bitcoin-buying software company that transcends the attention everyday investors pay to humdrum investments in their portfolios. Get the full sto

MicroStrategy (MSTR) will be included in the Nasdaq 100 stock market index, beginning one of the ultimate vampire attacks on the stock market.

MicroStrategy shares have gained more than 400% since the start of the year thanks to investor optimism about the software company's strategy of buying bitcoin as the cryptocurrency repeatedly hits record highs.