The index closed 8.49 points higher after gaining 6.21 points on Friday.
Trading on the Ho Chi Minh Stock Exchange (HoSE) fell by 7.62% to VND15.27 trillion ($650.13 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 23 tickers gain.
PDR of Phat Dat Real Estate Development led with a 4.7% rise, followed by MWG of electronics retail chain Mobile World, up 3.9%.
VNM of dairy giant Vinamilk closed 3.2% higher and BCM of Becamex Investment and Industrial Development rose 2.5%.
Five blue chips fell, including TPB of private TPBank with a 1.3% drop.
Foreign investors were net buyers to the tune of VND63.86 billion, mainly buying SSI of leading brokerage SSI Securities Corporation and KBC of industrial real estate developer Kinh Bac City.
The HNX-Index at the Hanoi Stock Exchange, where mid and small caps list, was up 0.78% while the UPCoM-Index at the Unlisted Public Companies Market was up by 0.40%.