shares of sba communications corp sbac shed 041 to 31622 wednesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 034 to 394601 and the dow jones industrial average djia rising 010 to 3113509 this was the stocks second consecutive day of losses sba communications corp closed 7493 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 wednesday as american tower reit amt fell 110 to 25182 crown castle inc cci fell 069 to 16650 and us cellular corp usm fell 033 to 2682 trading volume 470121 remained 18884 below its 50day average volume of 489005 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