The index closed 1.7% points higher. It has dropped nearly 39 points this week.
Trading on the Ho Chi Minh Stock Exchange (HoSE), on which the index is based, fell 12% to VND13.96 trillion ($575.20 million).
The VN30 basket, comprising the 30 largest capped stocks, saw 10 tickers gained.
VIC of private conglomerate Vingroup rose 4.1%, followed by BCM of Becamex Investment and Industrial Development with a 3.4% increase.
VRE of retail real estate arm Vincom Retail rose 2.6% and VPB of private lender VPBank closed 2.4% higher.
Fourteen blue chips fell.
CTG of state-owned lender VietinBank lost 2.6% and SSI of leading brokerage SSI Securities Corporation dropped 1.5%.
Foreign investors were net sellers to the tune of VND537 billion, mainly selling CTG and VCI of Viet Capital Securities.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 0.79% while the UPCoM-Index for the Unlisted Public Companies Market gained 0.38%.