shares of keysight technologies inc keys slid 376 to 16877 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 122 to 435645 and dow jones industrial average djia falling 019 to 3429773 keysight technologies inc closed 4031 short of its 52week high 20908 which the company reached on december 30th the stock underperformed when compared to some of its competitors tuesday as national instruments corp nati fell 339 to 3964 ametek inc ame fell 179 to 13389 and danaher corp dhr fell 204 to 27120 trading volume 15 m eclipsed its 50day average volume of 11 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