shares of wec energy group inc wec slid 079 to 10366 monday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 169 to 441253 and dow jones industrial average djia falling 119 to 3430808 wec energy group inc closed 151 short of its 52week high 10517 which the company achieved on april 8th the stock demonstrated a mixed performance when compared to some of its competitors monday as duke energy corp duk fell 097 to 11423 xcel energy