The index closed 12.45 points higher after gaining 1.79 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange decreased by 14% to VND14.71 trillion ($603.24 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 27 tickers gained.
GVR of Vietnam Rubber Group led with a 3.1% gain rise, followed by SHB of Saigon Hanoi Commercial Bank and STB of Ho Chi Minh City-based lender Sacombank, both up 2.7%.
ACB of Asia Commercial Bank gained 2.2% and BID of state-owned lender BIDV closed 1.9% higher.
Two blue chips fell. SSB of SeABank dropped 2.7% and BCM of Becamex Investment and Industrial Development closed 0.6% lower.
Foreign investors were net sellers to the tune of VND208 billion, mainly selling SSI of leading brokerage SSI Securities Corporation and PVS of PetroVietnam Technical Services Corporation.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 0.72%, while the UPCoM-Index for the Unlisted Public Companies Market went up 0.25%.