MicroStrategy (NASDAQ: MSTR), which bought more than $400 million in bitcoin to hold already and is planning to raise capital to buy even more, is also higher on the day. What happened After breaking through the key $20,000 level for the first time on Wednesday, leading digital currency bitcoin is soaring again. Many bitcoin investors believe that the massive amounts of stimulus being injected into economies around the world (read: money being printed), will lead to high inflation.