HÀ NỘI — Blue-chip stocks drove market gains as shares rose for the third consecutive day ahead of Lunar New Year. The benchmark VN-Index on the Hồ Chí Minh Stock Exchange (HoSE) gained 0.85 per cent to close at 1,198.53 points. More than 685 million shares were traded on the southern exchange on Thursday, worth VNĐ15.5 trillion (US$634.3 million). The VN30 Index, which tracks the performance of the 30 largest stocks by market capitalisation and liquidity on HoSE, rose 1.13 per cent to end at 1,212.70 points. On the Hà Nội Stock Exchange, the HNX-Index gained 0.18 per cent to 231.04 points.