shares of public storage psa shed 122 to 36285 friday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx rising 052 to 450053 and the dow jones industrial average djia falling 006 to 3508974 this was the stocks second consecutive day of losses public storage closed 1451 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 friday as extra space storage inc exr fell 151 to 20146 life storage inc lsi fell 113 to 13519 and ps business parks inc psb fell 106 to 16330 trading volume 788789 eclipsed its 50day average volume of 704218 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