The index closed 1.06 points higher after gaining 2.95 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange decreased by 17% to VND14.65 trillion ($603.44 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 12 tickers gained.
VHM of property giant Vinhomes led with a 3.4% rise, followed by VIC of private conglomerate Vingroup, up 2.6%.
MSN of conglomerate Masan Group went up 2% and GVR of Vietnam Rubber Group closed 1.5% higher.
BID of state-owned lender BIDV and STB of Ho Chi Minh City-based lender Sacombank both dropped 1.2%.
Foreign investors were net sellers to the tune of VND430 billion, mainly selling MBB of lender MB and VCB of state-owned lender Vietcombank.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 0.07%, while the UPCoM-Index for the Unlisted Public Companies Market went down 0.26%.