A news story about United Airline's decision to seek protection from creditors was originally published December 10,2002 , by the Chicago Tribune. The story was recirculated by a Florida news service in 2008 . Following the recirculated story there was a steep selloff in United's shares. When the story hit Bloomberg News, United's stock fell from about $12 per share to $3 per share. Once the truth was out, the stock got back to a slightly lower $10. Does this market behaviour contradict the efficient market hypothesis