shares of illumina inc ilmn inched 057 higher to 21405 wednesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 028 to 414760 and the dow jones industrial average djia rising 011 to 3412805 illumina inc closed 15711 short of its 52week high 37116 which the company reached on april 4th the stock demonstrated a mixed performance when compared to some of its competitors wednesday as laboratory corp of america holdings lh rose 179 to 24824 charles river laboratories international inc crl fell 008 to 25153 and quest diagnostics inc dgx rose 140 to 14662 trading volume 781335 remained 500699 below its 50day average volume of 13 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