shares of public storage psa sank 001 to 33062 wednesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 075 to 410123 and dow jones industrial average djia falling 054 to 3281323 this was the stocks second consecutive day of losses public storage closed 9114 short of its 52week high 42176 which the company achieved on april 21st the stock demonstrated a mixed performance when compared to some of its competitors wednesday as extra space storage inc exr rose 025 to 17865 life storage inc lsi rose 094 to 11786 and ps business parks inc psb fell 002 to 18760 trading volume 735529 remained 44106 below its 50day average volume of 779635 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