The index closed eight points higher after gaining nearly 17 points Friday. It has risen by 75 points in the last five sessions.
Trading on the Ho Chi Minh Stock Exchange (HoSE) increased by 2.5 percent to VND16.50 trillion.
The VN-30 basket, comprising the 30 largest capped stocks, saw 18 tickers gain.
VJC of budget airline Vietjet led with a 4.3 percent rise after announcing a ten-fold rise in profit at the general meeting Saturday.
STB of Ho Chi Minh City-based lender Sacombank rose 2.5 percent while TPB of private TPBank gained 2.2 percent.
Other gainers included PLX of fuel distributor Petrolimex and PDR of Phat Dat Real Estate Development, up 1.9 percent and 1.8 percent respectively.
Eight blue chips fell, with PNJ of Phu Nhuan Jewelry losing 1.5 percent and MWG of electronics retail chain Mobile World falling 1 percent.
Foreign investors’ net purchase surged nearly 14 times to VND1.71 trillion, mainly buying the Dragon Capital Vietfund Management (FUEVFVND), FPT of IT giant FPT Corporation and STB.
The HNX-Index at the Hanoi Stock Exchange, where mid and small caps list, was up 0.51 percent while the UPCoM-Index at the Unlisted Public Companies Market was up by 0.21 percent.