shares of snapon inc sna shed 312 to 21640 wednesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 404 to 392368 and dow jones industrial average djia falling 357 to 3149007 the stocks fall snapped a fourday winning streak snapon inc closed 4158 short of its 52week high 25798 which the company achieved on june 1st the stock demonstrated a mixed performance when compared to some of its competitors wednesday as illinois tool works inc itw fell 417 to 20339 stanley black  decker inc swk fell 553 to 11615 and makita corp adr mktay fell 215 to 2858 trading volume 357132 remained 66459 below its 50day average volume of 423591 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