shares of halliburton co hal slid 122 to 3655 wednesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 061 to 399532 and dow jones industrial average djia falling 042 to 3396635 the stocks fall snapped a twoday winning streak halliburton co closed 744 short of its 52week high 4399 which the company reached on june 8th the stock underperformed when compared to some of its competitors wednesday as conocophillips cop fell 048 to