shares of quest diagnostics inc dgx rose 345 to 14006 friday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 056 to 397099 and the dow jones industrial average djia rising 041 to 3223753 this was the stocks second consecutive day of gains quest diagnostics inc closed 1828 below its 52week high 15834 which the company reached on december 29th the stock outperformed some of its competitors friday as unitedhealth group inc unh rose 129 to 47599 iqvia holdings inc iqv rose 019 to 18835 and centene corp cnc rose 235 to 6405 trading volume 17 m eclipsed its 50day average volume of 12 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