Apple's stock price just dropped more than $500 a share. But don't panic.

Washington Post (blog)Apple's stock price just dropped more than $500 a share. But don't panic.Washington Post (blog)But if you haven't been following Apple on the Nasdaq very closely, you might be in for a shock this morning: Shares of the world's richest tech company have fallen to $92 each, down from around $650 at the end of last week. Don't worry, though. We're ...