shares of wr berkley corp wrb slipped 019 to 9262 wednesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 145 to 458718 and the dow jones industrial average djia rising 086 to 3576806 the stocks fall snapped a sixday winning streak wr berkley corp closed 040 short of its 52week high 9302 which the company reached on february 8th the stock demonstrated a mixed performance when compared to some of its competitors wednesday as arch capital group ltd acgl rose 012 to 4826 alleghany corp y fell 080 to 68784 and american financial group inc afg fell 037 to 13288 trading volume 968604 eclipsed its 50day average volume of 803786 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