shares of american tower reit amt shed 316 to 19099 wednesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 067 to 369516 and dow jones industrial average djia falling 033 to 3042381 the stocks fall snapped a twoday winning streak american tower reit closed 10341 below its 52week high 29440 which the company achieved on december 31st the stock underperformed when compared to some of its competitors wednesday as crown castle inc cci fell 201 to 13070 rogers communications inc cl b rcib rose 042 to 5287 and sba communications corp sbac fell 223 to 25249 trading volume 17 m remained 95100 below its 50day average volume of 18 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