shares of wr berkley corp wrb sank 004 to 6728 monday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 115 to 385443 and dow jones industrial average djia falling 052 to 3117384 this was the stocks third consecutive day of losses wr berkley corp closed 504 below its 52week high 7232 which the company reached on june 7th the stock demonstrated a mixed performance when compared to some of its competitors monday as arch capital group ltd acgl rose 027 to 4459 alleghany corp y fell 018 to 83305 and american financial group inc afg fell 001 to 13793 trading volume 12 m remained 366451 below its 50day average volume of 15 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