shares of perkinelmer inc pki dropped 033 to 14601 friday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 008 to 389938 and dow jones industrial average djia falling 015 to 3133815 the stocks fall snapped a fourday winning streak perkinelmer inc closed 5715 below its 52week high 20316 which the company achieved on december 31st the stock demonstrated a mixed performance when compared to some of its competitors friday as thermo fisher scientific inc tmo fell 001 to 55371 becton dickinson  co bdx fell 030 to 24566 and illumina inc ilmn fell 255 to 19704 trading volume 873430 eclipsed its 50day average volume of 804581 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