Shares of Apple Inc., which opened marginally higher, briefly dipped on a CNN iReport that Apple CEO Steve Jobs had suffered a heart attack and had been rushed to a hospital. It’s hard to overstate the lack of credibility this report has, but that doesn’t stop short-term trading types.

The story was posted by a user named “johntw,” and may have had an impact on the shares, which dropped sharply, to $94.65, before recovering. An Apple spokeswoman said this report was untrue

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