The index closed 14.64 points higher after gaining 5.20 points on Friday.
Trading on the Ho Chi Minh Stock Exchange (HoSE) increased by 19.82% percent to VND14.17 trillion ($604.1 million).
The VN-30 basket, comprising the 30 largest capped stocks, saw 24 tickers gain.
PDR of Phat Dat Real Estate Development JSC rose 6%, followed by VIC of giant Vingroup JSC with a 5.45% increase.
TCB of Techcombank saw a slight improvement of 3.35%.
On the other hand, VJC of budget carrier Vietjet saw a decline of 2.38%. SAB of brewer Sabeco and MSN of conglomerate Masan Group dropped 2% and 1.29%, respectively.
Foreign investors were net sellers to the tune of VND313.44 billion.
The HNX-Index at the Hanoi Stock Exchange, where mid and small caps list, was up 1.44% while the UPCoM-Index at the Unlisted Public Companies Market was up by 0.68%.