Billionaire Activist Investor's Tweet Boosts Apple's Stock More Than 5%

Yet another example of the power of 140 characters: billionaire activist investor Carl Icahn tweeted yesterday afternoon about his strong belief in Apple and, as a result, the company saw its stock jump up by more than 5% – the biggest bump in more than 6 months.

The increase effectively added several billion dollars to Apple’s market cap. Talk about the tweet heard around the world.

Miguel Rios, an engineering manager at Twitter, captured the moment:

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