Twitter and the Tiger Effect on Nike

Interesting to look at the effect of today’s Tiger Woods news — he is taking the rest of the year off for surgery and rehab — on Nike, his main sponsor. The story broke on Twitter around 11:30am EST, and then on the wires at 11:40am EST, and Nike stock responded accordingly, with an initial surge of trading, then a respite, and then a steady decline from noon onward.


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  4. Stock-Picking? Oh, That is So 1980
  5. Google and the October 21st Effect