The Sensex opened 15 points higher at 10,428. The index spurted to a high of 10,451, and then slipped in red to a low of 10,326 - down 125 points from the day's high.The index has rebounded back in green and is now up 13 points at 10426.Cipla gained 2% at Rs 231. Bharti Airtel has moved up 1.4% to Rs 371.