The index closed 3.77 points higher after gaining 4.42 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange decreased by 2% to VND15.94 trillion (US$625 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 18 tickers gained.
BCM of Becamex Investment and Industrial Development led with a 3.5% rise, followed by MWG of electronics retail chain Mobile World, up 2.5%.
BVH of insurance company Bao Viet Holdings rose 1.9% and CTG of state-owned lender VietinBank increased by 1.6%.
Foreign investors were net sellers to the tune of VND193 billion, mainly selling FPT of IT giant FPT Corporation and KDH of real estate firm Khang Dien House.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, fell 0.19%, while the UPCoM-Index for the Unlisted Public Companies Market went up 0.52%.