updated 02:20 pm EST, Wed February 29, 2012
Company cements position as world's most valuable
Apple's market capitalization has surpassed the $500 billion threshold in the course of Wednesday stock trading. In practice, the achievement mostly only cements Apple's position as the world's most valuable public corporation. In the past, just Microsoft, ExxonMobil, Cisco, and General Electric have ever cracked $500 billion.
Of these, Exxon is said to have been the most recent, reaching the target in late 2007. Microsoft is the only company to have ever hit $600 billion, but is now valued at roughly $267 billion. Apple eclipsed ExxonMobil on January 25th; the latter company is still second, valued at $410 billion.
[Update]: At market close, AAPL finished the day with a capitalization value of $505.75 billion and a per-share price of $542.44, up $7.03 or 1.31 percent for the day.