Calpine: New 52-Week Low Set Today (CPN) By: Comtex SmarTrend® News Briefs July 20, 2015 at 10:12 AM EDT Calpine (NYSE:CPN) traded at a new 52-week low today of $17.15. This new low was reached on below average trading volume as 540,000 shares traded hands, while the... Read More >>