shares of realty income corp o slid 128 to 6822 tuesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 063 to 413215 and dow jones industrial average djia falling 067 to 3299012 realty income corp closed 718 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 remained unchanged trading volume 67 m eclipsed its 50day average volume of 38 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