itutionali nvestor.com/Article/2962645/Is-Centauruss-John-A=nold-Losing-His-Touch.html">ls Centaurus's John Arnold Losing His Touch=3F Centaurus's John Arn=ld was up "only" 7 percent this year. Given the economic circumstances, t=at's pretty good. But it's a far cry from his previous spectacular hi=hs.