The ticker fluctuates in the 1,270 range throughout the session and closed with a 0.14-point increase. It gained over 8 points in the last three sessions.
Trading value on the Ho Chi Minh Stock Exchange (HoSE), on which the index is based, plunged nearly 30 percent to VND13.06 trillion ($560 million), lowest since February 9. The bourse saw 141 tickers gain and 214 lose.
The VN30 basket, comprising the 30 largest capped stocks, saw 13 tickers gain led by VCB of state-owned lender Vietcombank, up 2.1 percent after falling to the lowest since May 19 on Tuesday.
It was followed by TCH of real estate company Hoang Huy Investment Financial Services, up 1.9 percent, and CTG of state-owned lender VietinBank, up 1.2 percent.
Other gainers included HDB of HDBank and PDR of Phat Dat Real Estate Development, both up 1.2 percent, and HPG of steelmaker Hoa Phat Group, up 1.1 percent.
Red, however, dominated the basket with NVL of real estate developer Novaland Group losing 2.3 percent, followed by POW of electricity producer Petrovietnam Power Corporatione, down 1.9 percent and VRE of retail real estate arm Vincom Retail, down 1.6 percent.
Foreign investors were net buyers to the tune of VND61 billion with strongest pressure on HPG and MBB of MBBank.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, gained 0.08 percent while the UPCoM-Index for the Unlisted Public Companies Market rose 0.22 percent.