shares of western union co wu shed 432 to 1639 monday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 388 to 374963 and dow jones industrial average djia falling 279 to 3051674 this was the stocks fourth consecutive day of losses western union co closed 866 below its 52week high 2505 which the company reached on june 14th the stock demonstrated a mixed performance when compared to some of its competitors monday as mastercard inc ma fell 448 to 31974 fidelity national information services inc fis fell 290 to 9496 and global payments inc gpn fell 621 to 11015 trading volume 35 m remained 221042 below its 50day average volume of 37 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