shares of paccar inc pcar sank 061 to 8147 thursday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 058 to 447000 and dow jones industrial average djia falling 054 to 3521312 the stocks fall snapped a threeday winning streak paccar inc closed 2172 short of its 52week high 10319 which the company achieved on january 21st the stock demonstrated a mixed performance when compared to some of its competitors thursday as ford motor co f fell 205 to 1290 sinotruk hong kong ltd adr shkly remained unchanged and oshkosh corp osk fell 109 to 11533 trading volume 18 m remained 318447 below its 50day average volume of 22 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