shares of realty income corp o slid 123 to 6929 tuesday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx rising 016 to 383139 and the dow jones industrial average djia falling 042 to 3096782 realty income corp closed 611 short of its 52week high 7540 which the company achieved on april 21st the stock underperformed when compared to some of its competitors tuesday as medical properties trust inc mpw rose 032 to 1569 trading volume 30 m remained 14 million below its 50day average volume of 44 m 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