shares of ipg photonics corp ipgp shed 179 to 11659 thursday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 072 to 406122 and dow jones industrial average djia falling 086 to 3312774 this was the stocks second consecutive day of losses ipg photonics corp closed 1822 short of its 52week high 13481 which the company achieved on february 16th the stock demonstrated a mixed performance when compared to some of its competitors thursday as teradyne inc ter fell 237 to 8998 lumentum holdings inc lite fell 198 to 4750 and national instruments corp nati fell 002 to 5816 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