The index closed 18.98 points higher after gaining 54.12 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange decreased by 37% to VND24.221 trillion (US$937.8 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 16 tickers gained.
Of these, three rose to their ceiling prices: MWG of electronics retail chain Mobile World, VHM of property giant Vinhomes and VIC of private conglomerate Vingroup.
Eleven blue chips fell. SSB of SeABank went down 4.3%, PLX of fuel distributor Petrolimex slipped 1.4%, and TPB of private lender TPBank closed 1.1% lower.
Foreign investors were net seller to the tune of VND125 billion, mainly selling FPT of tech giant FPT Corporation and VHM.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 0.78%, while the UPCoM-Index for the Unlisted Public Companies Market went down 1.55%.