Surprise Afternoon Rally Led by BVH GAS and VNM. An afternoon rally came as a surprise today as the morning session was quite dull following news that the Asset Management Company will be delayed until the end of April. Trading volume surged 42% to 55m shares on the HOSE and 30% to 42m shares on the HNX. The VNI gained 3% to close at 505.81 and the HNI gained 1.5% to close at 61.51.