The index added 0.05 point or 0.14% to close at 35.61.The gauge started with given mark of 100 on June 24, 2009 but it has never been back to that level.
The market volume dropped to 182,720 shares changed hands for VND1.41 billion, compared with 412,790 shares changed hands for VND2.9 billion on Wednesday trading.
The market breadth was positive with 16 gainers, 15 losers, 7 unmoved and the rest untraded.
SPC was the biggest gainer today, climbing VND2,000 to hit the ceiling at VND22,000/unit on a trade of 100 shares.
DGT was the biggest loser today, giving up VND1,000 to hit the floor at VND9,200 with 500 units changed hands.
PSB was the most active stock today with 35,000 shares traded, adding VND100 to close at VND3,700/unit.
Foreigners bought 6,800 PJS shares today.