The index gained 0.22 point or 0.64% to close at 34.56.The gauge started with the given mark of 100 on June 24, 2009 but it has never been back to that level.
The market volume increased to 2,773,300 shares changed hands for VND130.5 billion, compared with 2,511,500 shares changed hands for VND120.17 billion, on Tuesday trading.
The market breadth was positive with 13 gainers, 8 losers, 11 unmoved and the rest untraded.
TNY was the biggest gainer for the second day today, adding VND2,700 to hit the ceiling at VND30,400 with 100 shares traded.
DNS was the biggest loser today, falling VND500 to hit the floor at VND5,200 on a trade of 100 units.
NHN was the most active stock for the second day today with 2,600,000 shares traded. Its reference price was VND49,000/unit.
Foreigners bought 1800 WSB shares today.