The index closed 7.37 points higher after gaining 7.37 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange decreased by 10% to VND12.62 trillion ($520.57 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 19 tickers gained.
The top gainers included PLX of fuel distributor Petrolimex, up 6.2%, MSN of conglomerate Masan Group, up 2.6%, and MWG of electronics retail chain Mobile World, up 2.1%
Six blue chips fell, including STB of Ho Chi Minh City-based lender Sacombank with a 1.2% decline.
Foreign investors were net sellers to the tune of VND102 billion, mainly buying VHM of property giant Vinhomes and VCI of Viet Capital Securities.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 1.18%, while the UPCoM-Index for the Unlisted Public Companies Market went up 0.46%.