After Apple Inc. (Nasdaq: AAPL) touched $600, it set off speculation about whether the stock is truly worth $600 a share.
Some consider Apple's parabolic run-up in price as a warning sign of a bubble. In December Apple was still trading under $400.
Others look at the escalating sales growth of such Apple products as the iPhone and iPad and see justification for a $600 stock, a $700 stock, or even higher.
So we at Money Morning thought it would be worth comparing Apple's annual earnings numbers with the rise in its stock price since 2006, the year before the iPhone debuted.
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