Michael Saylor's company doesn't market any hot products or services. What he and MicroStrategy MSTR 8.04%increase; green up pointing triangle do is sell new shares and debt, at a pace rarely seen in corporate history. Saylor plows all that money into bitcoin, vowing to keep doing it, over and over. 

MicroStrategy shares are up about 690% in the past year and the 59-year-old executive chairman's approximately 10% stake is worth about $9.7 billion, while he personally owns an additional $1.9 billion or so of bitcoin.