shares of public storage psa sank 042 to 31237 tuesday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx rising 025 to 400105 and the dow jones industrial average djia falling 026 to 3216074 this was the stocks eighth consecutive day of losses public storage closed 10939 below its 52week high 42176 which the company achieved on april 21st the stock underperformed when compared to some of its competitors tuesday as extra space storage inc exr rose 345 to 17528 life storage inc lsi rose 219 to 11404 and ps business parks inc psb rose 049 to 18685 trading volume 13 m eclipsed its 50day average volume of 743913 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