MicroStrategy buys more than 5,000 bitcoins in 3 weeks while it sells its own stock By: MarketWatch September 13, 2021 at 12:28 PM EDT Enterprise software company MicroStrategy Inc. keeps swapping out its shares for more bitcoin. Read More >> Related Stocks: Bitcoin (Bitstamp) Bitcoin Composite Microstrategy Cl A Morgan Stanley S&P Software & Services ETF SPDR SPX