The index mostly stayed in the green and closed 4.89 points higher, marking the fifth straight session it has stayed in the 1,240-1,250 range.
Trading on the Ho Chi Minh Stock Exchange fell by 21.31% to VND11.29 trillion ($478.1 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 13 gainers.
NVL of property developer Novaland rose 2.2%, and POW of Petrovietnam Power surged 2.1%.
GVR of Vietnam Rubber Group and VRE of Vincom Retails ended 2% and 1.2% higher, respectively.
Thirteen blue chips lost, led by BID of lender BIDV with a 2.1% drop.
It was followed by SSI of brokerage SSI Securities, down 1.4%, and MBB of MBBank, down 1.1%.
Foreign investors were net sellers to the tune of VND333.64 billion, focusing on STB of Sacombank, SSI, and GAS of Petrovietnam Gas.
The HNX-Index at the Hanoi Stock Exchange, where mid and small caps list, rose 0.1% while the UPCoM-Index at the Unlisted Public Companies Market surged 0.12%.