shares of catalyst pharmaceuticals inc cprx shed 250 to 1638 friday on what proved to be an allaround poor trading session for the stock market with the nasdaq composite index comp falling 070 to 1100462 and dow jones industrial average djia falling 090 to 3347646 this was the stocks second consecutive day of losses catalyst pharmaceuticals inc closed 201 below its 52week high 1839 which the company reached on november 28th the stock underperformed when compared to some of its competitors friday as johnson  johnson jnj fell 082 to 17574 pfizer inc pfe fell 012 to 5172 and abbott laboratories abt rose 055 to 10751 trading volume 11 m remained 11 million below its 50day average volume of 22 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