The Hanoi Stock Exchange (HNX) has said that trade saw strong breakthroughs in August, especially in the first two weeks of the month. The HNX-Index reached its peak for the month on August 15, standing at 303.97 points, or 4.8 per cent higher than its July peak. The index closed on August 31 at 291.91 points, up 7.3 per cent compared to July.