shares of crown castle inc cci slipped 174 to 17700 monday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 214 to 413799 and dow jones industrial average djia falling 191 to 3306361 this was the stocks fifth consecutive day of losses crown castle inc closed 3287 short of its 52week high 20987 which the company reached on december 31st the stock underperformed when compared to some of its competitors monday as america movil sab de cv series a amxa rose 077 to 1970 sba communications corp sbac fell 160 to 33898 and american tower reit amt fell 170 to 26975 trading volume 981989 remained 543020 below 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