The index closed 18.28 points higher after dropping 4.60 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange increased by 39% to VND26.097 trillion (US$1.03 billion).
The VN-30 basket, comprising the 30 largest capped stocks, saw 29 tickers gained.
STB of private lender Sacombank surged 6.8%, POW of electricity producer Petrovietnam Power Corporation went up 6.7%, MBB of lender MB closed 3.9% higher.
Only one blue chip fell. GVR of Vietnam Rubber Group lost 0.4%.
Foreign investors were net seller to the tune of VND243 billion, mainly selling FPT of IT giant FPT Corporation and MWG of electronics retail chain Mobile World.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 0.67%, while the UPCoM-Index for the Unlisted Public Companies Market went up 1.07%.