The Sensex at the Bombay Stock Exchange was trading 60 points down at 18,980 a short while ago. It fell by 66 points in early trade today, largely due to profit-booking by funds and speculators, after recent gains, amid a mixed Asian trend.The Nifty at the National Stock Exchange moved down by 18 points, to 5,726.In Asia, Hong Kong's Hang Seng index was down by 0.11 per cent, while Japan's Nikkei was up by 1.75 per cent in the early trade. The US Dow Jones Industrial Average ended 0.61 per cent higher yesterday.