The Sensex at the Bombay Stock Exchange fell 78 points, or 0.5 per cent, to 17,089 in opening trade, today, on profit-booking, amid weak Asian markets. But after recovering from its lows, the Sensex stood 15 points, or 0.1 percent in the green, at 17,181, a short while ago. Other Asian markets in China, Hong Kong, Singapore, South Korea and Taiwan were down between 0.2 percent and 1.5 percent.