The index closed 3.73 points higher after losing 4.25 points on Wednesday.
Trading on the Ho Chi Minh Stock Exchange (HoSE) fell by 10.52% to VND12.90 trillion ($544.99 million).
Foreign investors net sold VND2.55 trillion, highest since October 28.
Their top selling ticker was EIB of private lender Eximbank with a value of VND2.9 trillion. EIB dropped 2.78%.
The VN-30 basket, comprising the 30 largest capped stocks, saw 20 tickers gain.
KDH of real estate firm Khang Dien House and PDR of Phat Dat Real Estate Development led with a 7% and 6.7% rise respectively.
VPB of private lender VPBank gained 4.5%, and PLX of fuel distributor Petrolimex went up 3.9%.
TPB of private TPBank rose 3.5% and POW of electricity producer Petrovietnam Power Corporation increased by 2.4%.
Six blue chips fell, with GAS of state-owned Petrovietnam Gas losing 2.2%.
VNM of dairy giant Vinamilk dropped 1.7%, and SSI of leading brokerage SSI Securities Corporation fell 1%.
The HNX-Index at the Hanoi Stock Exchange, where mid and small caps list, was up 0.65% while the UPCoM-Index at the Unlisted Public Companies Market was up by 0.18%.