The index lost 0.11 point or 0.36%, to close at 30.4. The gauge started with the given mark of 100 on June 24, 2009 but it has never been back to that level.
However, the market volume increased today with 305,960 shares changed hands for VND1.41 billion, compared with 211.968 shares changed hands for VND1.55 billion on Tuesday.
The market breadth was negative with 8 gainers, 19 losers, 6 unmoved and the rest untraded.
DNT was the biggest gainer, adding VND700 to hit the ceiling at VND7,900 with 100 shares traded.
HPP was the biggest loser, falling VND1,400 to finish at VND20,000 on a trade of 100 units.
PSB was the most active stock today with 107,900 shares traded, whose price lost VND200 to close at VND3,700.
Foreigners bought 7,00 DBM shares today.