The index closed 8.35 points higher after gaining 0.14 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange increased by 21% to VND13.49 trillion (US$532 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 21 tickers gained.
BVH of insurance company Bao Viet Holdings led with a 7% surge, followed by FPT of IT giant FPT Corporation, up 3.5%.
BID of state-owned lender BIDV gained 1.4% and HPG of steelmaker Hoa Phat Group closed 1.3% higher.
Six blue chips fell, including VHM of property giant Vinhomes with a 0.7% decline.
Foreign investors were net buyers to the tune of VND334 billion, mainly buying FPT and MSN of conglomerate Masan Group.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 0.48%, while the UPCoM-Index for the Unlisted Public Companies Market went up 0.43%.