Strategy, formerly MicroStrategy, plans to raise additional capital of up to $21 billion for general corporate operations and more Bitcoin purchases.The company's total Bitcoin holdings will exceed 500,000 BTC with the new capital, making it the world's largest corporate BTC company.Michael Saylor's company has spent $33.1 billion so far to acquire Bitcoin, with an average purchase price of $66,357 per bitcoin.News of their plan to buy more BTC had a slight positive impact on Bitcoin's price, which hovered around $83,252 at the time of writing.