shares of edison international eix sank 073 to 6813 monday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 031 to 398224 and the dow jones industrial average djia rising 022 to 3288909 edison international closed 519 below its 52week high 7332 which the company reached on april 21st the stock demonstrated a mixed performance when compared to some of its competitors monday as nextera energy inc nee fell 082 to 7186 southern