Apple’s stock market value hit the $500 billion mark Wednesday, moving it into territory where few companies have gone before or have remained for very long.

The record marks another high for Apple -- already the world's most valuable corporation, having recently edged past oil giant Exxon Mobil. The company’s valuation is now worth more than the U.S. aircraft carrier fleet, the entire economy of Singapore and the global coffee industry...

CNBC’s Courtney Reagan reports that if Apple were a country with a gross domestic product of $500 billion it would be the world’s 20th largest economy, and at $500 billion Apple is worth more than high-tech rivals Microsoft and Google -- combined...


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