The index closed 18.25 points lower after dropping 19.77 points in the previous session.
Trading on the Ho Chi Minh Stock Exchange increased by 60% to VND21.855 trillion ($889.48 million).
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, fell 1.27% while the UPCoM-Index for the Unlisted Public Companies Market dropped 0.81%.
