The Hang Seng Index closed up 17.92 points, or 0.07%, at 25,471.15 on Tuesday, August 18. The Hang Seng Tech Index closed down 42.85 points, or 0.9%, at 4,739.18 on Tuesday, August 18. The H-share Index closed up 13.23 points, or 0.16%, at 8,453.2 on Tuesday, August 18. The Red Chip Index closed up 21.56 points, or 0.52%, at 4,183.04 on Tuesday, August 18.