Dow futures tick higher, but index heads for worst week since October on oil surge: Live updates - CNBC

Although Dow futures had inched higher at times, volatility surged as oil prices climbed and the index suffered steep losses that pushed it toward its worst week since October. That volatility carried into trading where the Dow ultimately closed about 600 points lower as higher yields and oil prices intensified selling. The pattern highlights that short-lived futures upticks have not been sufficient to offset weekly pressure from energy and bond-market moves.