![Tim Cooke](https://static-ssl.businessinsider.com/image/544ecb8e6bb3f7c53f911e8b-1200-924/tim-cooke-33.jpg?maxX=480)
REUTERS/Robert Galbraith
Apple CEO Tim Cook
Apple is among $4 by market capitalization (the value of its shares).
But it's hard to wrap your head around that fact.
Can you picture the value of Apple's shares, $673 billion?
The iPhone's popularity has catapulted Apple from an underdog fighting IBM to arguably the most successful consumer electronics companies out there.
To underscore how big Apple has become, we've put together some mind-blowing facts about its business.
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