shares of quest diagnostics inc dgx inched 072 higher to 13204 wednesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 073 to 411524 and dow jones industrial average djia falling 077 to 3279992 quest diagnostics inc closed 2630 below its 52week high 15834 which the company reached on december 29th the stock outperformed some of its competitors wednesday as unitedhealth group inc unh rose 029 to 48083 iqvia holdings inc iqv fell 186 to 19803 and centene corp cnc fell 060 to 6464 trading volume 776165 remained 286629 below 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