shares of ipg photonics corp ipgp slid 259 to 8530 wednesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 067 to 369516 and dow jones industrial average djia falling 033 to 3042381 the stocks fall snapped a twoday winning streak ipg photonics corp closed 9524 below its 52week high 18054 which the company reached on november 2nd the stock underperformed when compared to some of its competitors wednesday as northrop grumman corp noc rose 081 to 51091 and ciena corp cien fell 065 to 4103 trading volume 367451 eclipsed its 50day average volume of 309226 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