shares of pentair plc pnr slid 238 to 4508 monday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 067 to 403061 and dow jones industrial average djia falling 057 to 3209899 this was the stocks second consecutive day of losses pentair plc closed 3502 short of its 52week high 8010 which the company achieved on november 22nd the stock underperformed when compared to some of its competitors monday as dover corp dov fell 044 to 12743 xylem inc xyl fell 099 to 9205 and idex corp iex fell 032 to 20480 trading volume 17 m eclipsed its 50day average volume of 13 m 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