shares of laboratory corp of america holdings lh slumped 018 to 21882 monday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 040 to 455464 and the dow jones industrial average djia rising 052 to 3541124 laboratory corp of america holdings closed 722 below its 52week high 22604 which the company achieved on july 29th the stock underperformed when compared to some of its competitors monday as iqvia holdings inc iqv fell 004 to 22816 and centene corp cnc rose 033 to 7086 trading volume 421156 remained 239329 below its 50day average volume of 660485 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