The index closed 3.15 points higher after gaining 3.04 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange increased by 14% to VND15.998 trillion (US$629.4 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 15 tickers gained.
FPT of IT giant FPT Corporation went up 2.1%, CTG of state-owned lender VietinBank gained 1.2%, and VNM of dairy giant Vinamilk closed 1.2% higher.
Eight blue chips fell. VRE of retail real estate arm Vincom Retail slid 2.1%, SAB of brewer Sabeco fell 1.7%, and POW of electricity producer Petrovietnam Power Corporation went down 1.0%.
Foreign investors were net seller to the tune of VND373 billion, mainly selling FPT of FPT Corporation and VRE of Vincom Retail.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 0.18%, while the UPCoM-Index for the Unlisted Public Companies Market went down 0.01%.