shares of public storage psa advanced 424 to 29187 wednesday on what proved to be an allaround mixed trading session for the stock market with the dow jones industrial average djia rising 027 to 3366502 and the sp 500 index spx falling 038 to 426752 public storage closed 6526 below its 52week high 35713 which the company reached on august 18th the stock demonstrated a mixed performance when compared to some of its competitors wednesday as extra space storage inc exr rose 431 to 14950 and cubesmart cube rose 318 to 4541 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