APPLE CRUSHED: Stock Falls Another 4% To New Closing Low

Apple stock got clobbered again today, falling 4% to $510. That's the lowest close for the stock since its recent swoon began in September. (It's also a level that Apple first breached on the way up last winter. The stock is still up sharply this year, having entered the year at about $400.) What's going on? Several things. Some are fundamental, having to do with changes in Apple's business. Others are market-related (tax-related selling is likely having a significant impact). Still others relat...