Shares rallied on both national stock exchangeson Aug. 15, boosted by gains of blue chips.

On the HCM Stock Exchange, the VN-Index gained another 0.77 percent to finish the day at 429.47 points. The value of trades rocketed to more than 1 trillion VND (47.6 million USD), up 122 percent from a day earlier, while the volume of trades rose 70 percent to over 50.5 million shares.

The VN30 Index, representing the city's 30 leading shares by capitalisation and liquidity, also ended 0.86 percent higher at 513.36 points, with 19 codes advancing, six declining and five closing flat. Dairy giant Vinamilk (VNM) hit the ceiling price of 111,000 VND per share while insurer Bao Viet Holdings (BVH), Vietcombank (VCB), Sai Gon Securities Inc (SSI) and Military Bank (MBB) increased by 0.5-2.8 percent.

MBB was also the most-active share with 22.5 million traded, worth a total of 337 billion VND (16 million USD), accounting for 48 percent of total market value on the day. MBB climbed 2.8 percent to conclude the session at 14,700 VNDper share.

On the Hanoi exchange, the HNX-Index also advanced by 0.51 percent to 70.32 points on a modest turnover of 297.3 billion VND(14.2 million USD).

The HNX30 Index, tracking the northern bourse's top 30 shares, also edged up 0.44 percent to 134.17 points, with Habubank (HBB) still the most-active code on trades of 5.3 million shares. HBB sank 1.92 percent to end the day at 5,100 VNDa share.

Foreign investors again concluded the as net buyers on the HCM City exchange, picking up 17 billion VND (810,500 USD) worth of shares, but they turned to being net sellers on the Hanoi bourse, responsible for a net sell of 227.8 million VND (11,000 USD) worth of shares.-VNA