shares of sba communications corp sbac inched 037 higher to 32357 wednesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 094 to 458938 and the dow jones industrial average djia rising 063 to 3562933 sba communications corp closed 6758 below its 52week high 39115 which the company achieved on december 31st the stock underperformed when compared to some of its competitors wednesday as american tower reit amt rose 088 to 25234 crown castle international corp cci rose 190 to 18400 and us cellular corp usm rose 042 to 3074 trading volume 546436 remained 157270 below its 50day average volume of 703706 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