MicroStrategy has purchased an additional $1.5 billion in Bitcoin, marking the fourth consecutive week that this cryptocurrency hedge fund has acquired Bitcoin. According to a document from the U.S. Securities and Exchange Commission (SEC), MicroStrategy acquired 15,400 Bitcoins between November 25 and December 1. Since November 11, the company has purchased over $13.5 billion in Bitcoin and currently holds approximately $38 billion in Bitcoin. MicroStrategy co-founder and chairman Michael Saylor has transformed this enterprise software manufacturer into what he calls a 'Bitcoin treasury', drawing attention from Wall Street. The company's stock price has surged over 500% this year, outperforming nearly all other major stocks. MicroStrategy has been financing its Bitcoin purchases by selling convertible notes and issuing stock in the market. (Jin Shi)