The index closed 8.61 points higher after losing 14.53 points on Monday.
Trading on the Ho Chi Minh Stock Exchange (HoSE) fell by 0.20% to VND13.60 trillion ($580.12 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 20 tickers gain.
STB of Ho Chi Minh City-based lender Sacombank rose 4.8%, followed by TPB of private TPBank with a 4.6% gain.
SSI of leading brokerage SSI Securities Corporation and VJC of budget airline Vietjet both went up 2.9%.
Ten blue chips fell, with VNM of dairy giant Vinamilk losing 2.9%.
VHM of property giant Vinhomes dropped 1.2%.
Foreign investors were net sellers to the tune of VND118.99 billion, mainly buying HPG of steelmaker Hoa Phat Group and SSI.
The HNX-Index at the Hanoi Stock Exchange, where mid and small caps list, was up 0.75% while the UPCoM-Index at the Unlisted Public Companies Market was up by 0.58%.