The index lost 0.04 point or 0.12% 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 fell to 274,224 shares changed hands for VND2.9 billion, compared with 704,700 shares changed hands for VND1.96 billion on Thursday.
However, the market breadth was negative with 12 gainers, 26 losers, 6 unmoved and the rest untraded.
BTC was the biggest gainer today, adding VND4,200 to hit the ceiling at VND46,800 with 100 shares traded.
WSB was the biggest loser today, falling VND2,000 to hit the floor at VND18,900 on a trade of 10,000 units.
SHP was the most active stock today with 76,400 shares traded, whose price gained VND200 to hit the ceiling at VND3,100/unit.