Erasing initial losses, the Sensex at the Bombay Stock Exchange was trading 6 points in the positive zone at 16,158 when reports last came in. The 30-share Sensex, which had lost over 546 points in the previous two sessions, moved down further by 66 points, or 0.41 per cent, to 16,085 in opening trade today. In a similar fashion, the wide-based National Stock Exchange Nifty index was trading 10 points in the green at 4,860. In the Asian region, Japan's Nikkei was trading 1.95 per cent down, while Hong Kong's Hang Seng shed 1.49 per cent in early trade.