The index closed 18.33 points higher after gaining 8.03 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange increased by 98% to VND24.23 trillion ($999.58 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 29 tickers gained.
SSI of leading brokerage SSI Securities Corporation led with a 5% surge, followed by MWG of electronics retail chain Mobile World, up 3.1%.
STB of Ho Chi Minh City-based lender Sacombank rose 2.5% and SHB of Saigon Hanoi Commercial Bank closed 2.3% higher.
SAB of brewer Sabeco was the only blue chip that fell 0.5%.
Foreign investors were net sellers to the tune of VND583 billion, mainly selling VHM of property giant Vinhomes and SSI of leading brokerage SSI Securities Corporation.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 2.23%, while the UPCoM-Index for the Unlisted Public Companies Market went up 0.91%.