shares of wr berkley corp wrb rose 121 to 7422 wednesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 013 to 451407 and dow jones industrial average djia falling 020 to 3503107 the stocks rise snapped a twoday losing streak wr berkley corp closed 821 below its 52week high 8243 which the company reached on may 10th the stock demonstrated a mixed performance when compared to some of its competitors wednesday as arch capital group ltd acgl rose 249 to 3997 alleghany corp y rose 152 to 65281 and american financial group inc afg fell 004 to 13654 trading volume 639249 eclipsed its 50day average volume of 562468 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