shares of cooper cos coo sank 046 to 38610 friday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 014 to 419198 and dow jones industrial average djia falling 033 to 3342663 cooper cos closed 910 short of its 52week high 39520 which the company achieved on may 10th the stock underperformed when compared to some of its competitors friday as johnson  johnson jnj rose 027 to 15891 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