shares of public storage psa inched 011 higher to 35250 tuesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 122 to 435645 and dow jones industrial average djia falling 019 to 3429773 public storage closed 2486 short of its 52week high 37736 which the company reached on december 31st the stock demonstrated a mixed performance when compared to some of its competitors tuesday as extra space storage inc exr rose 024 to 19547 life storage inc lsi fell 061 to 13282 and ps business parks inc psb fell 153 to 16364 trading volume 837604 eclipsed its 50day average volume of 641796 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