The index closed 27.38 points higher after gaining 1.02 points on Friday.
Trading on the Ho Chi Minh Stock Exchange (HoSE) increased by 52.16% to VND11.70 trillion ($493.36 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 29 tickers gain.
NVL of property developer Novaland Group and PDR of Phat Dat Real Estate Development led with a ceiling rise of nearly 7%.
SSI of leading brokerage SSI Securities Corporation went up 6.7% and VPB of private lender VPBank rose 5.8%.
STB of Ho Chi Minh City-based lender Sacombank gained 5.3%.
No blue chip closed in the red.
Foreign investors were net sellers to the tune of VND90.62 billion, mainly selling SSI and HSG of steelmaker Hoa Sen Group.
The HNX-Index at the Hanoi Stock Exchange, where mid and small caps list, was up 2.80% while the UPCoM-Index at the Unlisted Public Companies Market was down by 0.14%.