MicroStrategy has increased the size of its corporate bond offering, which was first disclosed yesterday, from $400 million to $500 million. The money will be used to add to the company's existing Bitcoin holdings of 92,079 BTC. The $400 million in corporate debt sold was insufficient to match investor demand. Because selling $400 million in corporate debts wasn't enough, the company aims to buy more Bitcoin to supplement the $3.3 billion it already has in its coffers