shares of midamerica apartment communities inc maa slumped 005 to 18801 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 008 to 435419 and dow jones industrial average djia falling 015 to 3391984 midamerica apartment communities inc closed 949 below its 52week high 19750 which the company reached on september 2nd the stock underperformed when compared to some of its competitors tuesday as equity residential eqr rose 010 to 8070 avalonbay communities inc avb rose 010 to 22071 and udr inc udr rose 034 to 5332 trading volume 398805 remained 125432 below its 50day average volume of 524237 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