Calpine: New 52-Week Low Set Today (CPN) By: Comtex SmarTrend® News Briefs August 21, 2015 at 13:54 PM EDT Calpine (NYSE:CPN) traded at a new 52-week low today of $16.35. This new low was reached on below average trading volume as 2 million shares traded hands, while... Read More >>