The Sensex has rebounded into the positive zone and is now up 19 points at 14,535.ICICI Bank has rallied 2.8% to Rs 973. Reliance Energy has surged 2.4% to Rs 562.Grasim, NTPC and Gujarat Ambuja are up over 1% each at Rs 2,825, Rs 143 and Rs 145, respectively.Reliance Communications has shed 4% to Rs 495. HDFC has slipped over 1% to Rs 1,795.Out of 2,454 stocks traded so far, 1,489 have moved up, 901 have slipped and 64 are unchanged.