UP AT THE TOP: Apple's stock hit a new high Friday after a four-month swoon, as investors look ahead to the release of a new iPhone and possibly a smaller iPad.
THE NUMBERS: Apple Inc. saw its stock hit $645.48 in afternoon trading, before retreating a bit. The previous high for the stock was $644, hit on April 10.
VALUABLE: Apple has a market value of about $605 billion, almost 50 percent higher than No. 2 Exxon Mobil Corp. at $408 billion.
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