Profit-taking continued during May 15 session, with shares ending in the red at lower trading value.
On the HCM Stock Exchange, the VN-Index shed 3 percent, finishing at 455.65 points.
Market value decreased by 20 percent compared to May 14's level, totalling nearly 1.6 trillion VND (76.1 million USD) on a volume of nearly 97.2 million shares.
Only Sacombank (STB) amongst the 10 leading shares by capitalisation added 1.7 percent, which failed to lift the index as the other nine stocks tumbled. Particularly, the largest share – Vietcombank (VCB) – along with Vietinbank (CTG) and insurer Bao Viet Holdings (BVH) plunged to floor prices.
The VN30 tracking the bourse's 30 best stocks also lost 2.5 percent to 522.90 points.
On the Hanoi Stock Exchange, the HNX-Index slid 2.6 percent, standing at 76.81 points. Losers outnumbered gainers by 268-37.
Around 78.2 million shares worth a combined value of 806 billion VND changed hands, dropping 17.7 and 14.5 percent against the previous trading day's figures, respectively.
The most heavily traded code was again Habubank (HBB) with 7.7 million shares changing hands.-VNA