Ackman may be eyeing exit as JC Penney bet in tatters

... does cast a shadow over Ackman's record where average annual returns of 20 percent have made him a favorite with pension funds and other big investors. The failure of Ackman's "candidate has resulted in substantially diminished credibility for him ...

http://www.reuters.com/article/2013/04/09/us-jcpenney-ackman-idUSBRE9380UZ20130409?feedType=RSS&feedName=businessNews