Vietnam's benchmark VN-Index rose 1.66% to 1,120.49 points on Monday, its biggest gain since November 8.
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 Ha Noi 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%.
VNE-THANH BINH