shares of western union co wu slid 235 to 1410 tuesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 003 to 413613 and dow jones industrial average djia falling 046 to 3408927 western union co closed 630 below its 52week high 2040 which the company reached on february 16th trading volume 49 m remained 225863 below its 50day average volume of 51 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use