MicroStrategy, AutoNation, Palantir and more

Here are the companies making headlines on Tuesday:

MicroStrategy — The enterprise software company’s shares fell 7.7% Tuesday after the announcement to purchase more bitcoin. MicroStrategy said it plans to offer $600 million of senior convertible notes and use the net proceeds to buy bitcoin,. The move would mark the second time the company has made a bitcoin-related investment. Bitcoin’s price topped $50,000 for the first time ever on Tuesday.

AutoNation — Shares of AutoNation gained 1.3% after beating on the top and bottom lines of its quarterly earnings. The car company reported earnings of $2.43 per share on revenue of $5.785 billion. Wall Street expected earnings of $2.01 per…