Hong Kong stocks gained 100.82 points, or 0.49 percent, to close at 20,683.01 points on Tuesday. The benchmark Hang Seng Index traded between 20,571.55 and 20,767.58. Turnover totaled 44 billion HK dollars (about 5.67 billion U.S. dollars). (1 U.S. dollar = 7.76 HK dollars)