shares of kla corp klac slid 055 to 38775 friday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 110 to 391664 and dow jones industrial average djia falling 119 to 3186198 kla corp closed 4171 short of its 52week high 42946 which the company reached on january 26th 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