shares of boston properties inc bxp slid 088 to 6548 tuesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 030 to 397015 and dow jones industrial average djia falling 071 to 3265670 this was the stocks third consecutive day of losses boston properties inc closed 6763 below its 52week high 13311 which the company achieved on march 29th the stock underperformed when compared to some of its competitors tuesday as w p carey inc