shares of cms energy corp cms slid 062 to 6376 wednesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 061 to 399532 and dow jones industrial average djia falling 042 to 3396635 the stocks fall snapped a sixday winning streak cms energy corp closed 1000 below its 52week high 7376 which the company reached on april 21st the stock underperformed when compared to some of its competitors wednesday as duke energy corp duk rose 019