shares of pfizer inc pfe slipped 071 to 5300 friday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx rising 052 to 450053 and the dow jones industrial average djia falling 006 to 3508974 this was the stocks second consecutive day of losses pfizer inc closed 871 short of its 52week high 6171 which the company achieved on december 20th the stock underperformed when compared to some of its competitors friday as johnson  johnson jnj fell 065 to 17163 merck  co inc mrk fell 057 to 7856 and novartis ag adr nvs fell 016 to 8628 trading volume 249 m remained 185 million below its 50day average volume of 434 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