shares of illinois tool works inc itw slipped 239 to 22855 wednesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 070 to 389193 and dow jones industrial average djia falling 087 to 3187457 illinois tool works inc closed 2482 below its 52week high 25337 which the company achieved on february 2nd