shares of sba communications corp sbac slid 085 to 30935 monday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 038 to 440167 and dow jones industrial average djia falling 049 to 3456617 this was the stocks third consecutive day of losses sba communications corp closed 8180 short of its 52week high 39115 which the company reached on december 31st the stock demonstrated a mixed performance when compared to some of its competitors monday as american tower reit amt fell 110 to 23429 crown castle international corp cci fell 077 to 16758 and us cellular corp usm fell 023 to 3078 trading volume 632663 remained 71721 below its 50day average volume of 704384 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