shares of united parcel service inc cl b ups slid 135 to 18985 wednesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 041 to 409195 and dow jones industrial average djia falling 011 to 3364650 the stocks fall snapped a twoday winning streak united parcel service inc cl b closed 1954 below its 52week high 20939 which the company reached on august 19th