shares of public storage psa sank 032 to 37615 monday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 295 to 420109 and dow jones industrial average djia falling 237 to 3281738 the stocks fall snapped a fourday winning streak public storage closed 370 short of its 52week high 37985 which the company achieved on march 4th the stock demonstrated a mixed performance when compared to some of its competitors monday as extra space storage inc exr fell 032 to 20025 life storage inc lsi fell 158 to 13297 and ps business parks inc psb fell 046 to 16102 trading volume 622691 remained 90690 below its 50day average volume of 713381 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