The Sensex is now up six points at 15,511.ICICI Bank has advanced over 1% to Rs 905. Reliance Energy, ONGC and Bharti Airtel are the other notable gainers.Cipla, HDFC and HDFC Bank have slipped around 1.5% each to Rs 169, Rs 2,151 and Rs 1,210, respectively.ITC, Reliance Communications and Wipro are the other prominent losers.Out of 2,530 stocks traded so far, 1,468 have advanced, 977 have declined and 85 are unchanged.