Heavyweights BVH and MSN continued to have significant contribution in holding the green for the VNIndex. Despite high volatility in trading hours, the HSX managed to notch an eighth successive rise. Closing the session, the VNIndex marginally gained 0.43 points to 436.16 points (+0.1%) on the 4.2 points contribution of MSN and BVH, which closed at their ceiling prices for the second consecutive day.