iPad3 help Apple's stock was up $ 100 a month

Apple's stock reached a month ago for $ 500 per share, help iPad3 case release this morning, Apple's stock for the first time broke through the $ 600 mark. But now, Apple's stock has dropped slightly and stabilized at about $ 594. Since Apple released the fourth quarter of fiscal revenue report, Apple AAPL stock or within two months has reached $ 180, almost an increase of about 40%.

In the end of February this year, Apple's market value beyond the historic $ 500 billion mark. Apple is the world's most valuable company, worth over 560 billion U.S. dollars, Exxon Mobil more than $ 150 billion ranked second.