The index closed 3.44 points higher after dropping 1.54 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange went up by 4% to VND11.74 trillion (US$461 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 19 tickers gained.
GVR of Vietnam Rubber Group led with a 2.4% rise, followed by VHM of property giant Vinhomes, up 2%.
PLX of fuel distributor Petrolimex gained 1.6% and VRE of retail real estate arm Vincom Retail increased by 1.5%.
Eight blue chips fell. MWG of electronics retail chain Mobile World dropped 2.8% and FPT of IT giant FPT Corporation declined by 1.3%.
Foreign investors were net sellers to the tune of VND233 billion.
They mainly net sold VNM of dairy giant Vinamilk and VPB of private lender VPBank.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 0.09%, while the UPCoM-Index for the Unlisted Public Companies Market went up 0.96%.