shares of wr berkley corp wrb advanced 162 to 6726 tuesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 048 to 417548 and the dow jones industrial average djia rising 020 to 3312879 the stocks rise snapped a twoday losing streak wr berkley corp closed 427 short of its 52week high 7153 which the company reached on april 21st the stock demonstrated a mixed performance when compared to some of its competitors tuesday as arch capital group ltd acgl rose 120 to 4643 alleghany corp y rose 008 to 83815 and american financial group inc afg rose 220 to 14171 trading volume 16 m eclipsed 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