The index lost 0.22 point or 0.64%, to close at 34.15.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 plunged to 114,333 shares changed hands for VND0.88 billion, compared with 1,023,800 shares changed hands for VND45.12 billion last Friday.
The market breadth was negative with 9 gainers, 20 losers, 5 unmoved and the rest untraded.
STU was the biggest gainer today, adding VND2,400 to close at VND10,000 with 600 shares traded.
CZC was the biggest loser today, falling VND7,000 to hit the floor at VND10,700 on a trade of 300 units.
STS was the most active stock today with 39,333 shares traded, whose reference prices were VND12,000/unit.
Foreigners bought 200 PSP shares today.