The index closed 21.81 points higher after falling 17.85 points on September 11.
Trading on the Ho Chi Minh Stock Exchange (HoSE), on which the index is based, plunged 28% to 22.99 trillion VND (953.84 million USD).
The VN30 basket, comprising the 30 largest capped stocks, saw all tickers closed in the green.
The HNX-Index for stocks on the Hanoi Stock Exchange, home to mid and small caps, rose 1.99% while the UPCoM-Index for the Unlisted Public Companies Market gained 0.60%.
