The index closed 13.66 points higher after gaining 43.73 points on Friday.
Trading on the Ho Chi Minh Stock Exchange (HoSE) increased by 17.02% percent to VND20.97 trillion ($874.66 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 25 tickers gain.
LPB of Lien Viet PostBank and STB of of Ho Chi Minh City-based lender Sacombank led with 7% rise. They were followed by VPB of VPBank, up 4.9%.
SSI of leading brokerage SSI Securities Corporation and KDH of real estate firm Khang Dien House closed at ceiling price, with a 6.9% rise.
NVL of real estate developer Novaland Group hit floor price, down 6.9%. VIC of biggest private conglomerate Vingroup dropped 1%.
Foreign investors were net buyers to the tune of VND1.38 trillion.
The HNX-Index at the Hanoi Stock Exchange, where mid and small caps list, was up 1.85%while the UPCoM-Index at the Unlisted Public Companies Market was up by 1.43%.