Lack of fresh buying in most of the sectors has seen the index display a range-bound (positive) trend in the afternoon trades. The Sensex is now up 31 points at 6,620. The Nifty has gained eight points to 2,070.ONGC is up a per cent (Rs 5) at Rs 813, while Reliance is up Rs 2 at Rs 537.SBI is unchanged with a per cent gain (Rs 5) at Rs 665. HDFC Bank and ICICI Bank are up 1.10% each at Rs 564 (up Rs 6) and Rs 381 (up Rs 4), respectively.Zee has gained 2% (Rs 3) to Rs 153. Bharti has moved up nearly 2% (Rs 4) to Rs 214, and Hindalco has scaled up 1.48% (Rs 20) to Rs 1,383. Tisco has added 1.25% (Rs 5) to Rs 417.Hero Honda has advanced 2.29% (Rs 12) to Rs 543. Bajaj at Rs 1,040 (up Rs 2), Tata Motors at Rs 491 (up Rs 2) and Maruti at Rs 475 (up a rupee) are exhibiting steady buying trend.ITC and HLL are trading with marginal losses at Rs 1,299 and Rs 144, respectively.Infosys (down Rs 4 to Rs 2,166) and Wipro (down Rs 5 to Rs 693) continue to languish in negative territories. Satyam is up a notch at Rs 408.