Erasing initial gains, the Sensex at the Bombay Stock Exchange was trading 14 points in the negative territory at 17,359 in late morning deals, when reports last came in. The 30-share barometer had risen by 37 points, or 0.21 per cent, to 17,411 in opening trade today on selective buying by funds and retailers.In a similar fashion, the wide-based National Stock Exchange index Nifty was trading 9 points in the red at 5,282 points.In the Asian region, Japan's Nikkei rose by 0.40 per cent, while Hong Kong's Hang Seng index was being quoted 0.33 per cent lower in early trade. The US Dow Jones Industrial Average ended 0.50 per cent higher in the previous session on Friday.