shares of under armour inc cl a uaa shed 223 to 789 thursday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 064 to 453741 and dow jones industrial average djia falling 067 to 3528272 under armour inc cl a closed 516 below its 52week high 1305 which the company achieved on february 2nd the stock underperformed when compared to some of its competitors thursday as nike inc cl b nke fell 149 to 10767 trading volume 48 m remained 19 million below its 50day average volume of 67 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