The index closed 4.11 points higher after losing 4.36 points on Monday.
Trading on the Ho Chi Minh Stock Exchange (HoSE) fell by 23% to VND11.59 trillion ($494.27 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 15 tickers gain.
NVL of property developer Novaland Group led with a 6.8% rise, followed by VHM of property giant Vinhomes, up 3.4%.
PDR of Phat Dat Real Estate Development gained 2.3% and GVR of Vietnam Rubber Group closed 2.2% higher.
Nine blue chips fell. PLX of fuel distributor Petrolimex and SAB of brewer Sabeco both lost 0.9%.
Foreign investors were net sellers to the tune of VND571.13 billion, mainly selling STB of Ho Chi Minh City-based lender Sacombank and VND of brokerage VNDirect.
The HNX-Index at the Hanoi Stock Exchange, where mid and small caps list, was up 0.16% while the UPCoM-Index at the Unlisted Public Companies Market was up by 1.05%.