The index lost 0.23 point or 0.66% to close at 34.47.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 edged up to 4,168,110 shares changed hands for VND200.68 billion, compared with 4,142,380 shares changed hands for VND196 billion on last Friday trading.
However, the market breadth was positive with 19 gainers, 12 losers, 11 unmoved and the rest untraded.
DBM was the biggest gainer today, adding VND1,300 to hit the ceiling at VND15,000 with 400 shares traded.
MEF was the biggest loser for the second day today, falling VND1,500 to hit the floor at VND14,300 on a trade of 200 units.
NHN was the most active stock for a fourth day in a row today with 4,000,000 shares traded. Its reference prices were VND49,000/unit.
Foreigners bought 5000 WSB shares today.