shares of sba communications corp sbac were unchanged wednesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 108 to 411577 and dow jones industrial average djia falling 081 to 3291090 sba communications corp closed 5331 below its 52week high 39115 which the company achieved on december 31st the stock outperformed some of its competitors wednesday as american tower reit amt fell 063 to 26446 crown castle international corp cci fell 081 to 18445 and us cellular corp usm fell 010 to 2960 trading volume 660192 remained 26669 below its 50day average volume of 686861 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