The index closed 4.01 points higher after dropping 2.44 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange increased by 13% to a five-month high of VND21.13 trillion (US$825.2 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 18 tickers gained.
VHM of property giant Vinhomes rose 3.3%, VIC of private conglomerate Vingroup posted a 2.1% gain, and VRE of retail real estate arm Vincom Retail closed 1.7% higher.
Eight blue chips fell. TPB of private lender TPBank went down 3.0%, GVR of Vietnam Rubber Group slipped 0.9%, and SHB of Saigon Hanoi Commercial Bank dropped 0.8%.
Foreign investors were net seller to the tune of VND383 billion, mainly selling ACB of Asia Commercial Bank and FPT of IT giant FPT Corporation.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, fell 0.36%, while the UPCoM-Index for the Unlisted Public Companies Market went down 0.08%.