shares of laboratory corp of america holdings lh inched 025 higher to 23276 tuesday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx remaining mostly unchanged at 410894 and the dow jones industrial average djia rising 029 to 3368479 laboratory corp of america holdings closed 4796 short of its 52week high 28072 which the company reached on april 21st the stock underperformed when compared to some of its competitors tuesday as iqvia holdings inc iqv rose 142 to 19969 and centene corp cnc rose 157 to 6736 trading volume 387646 remained 241914 below its 50day average volume of 629560 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