Shares close down 23% on first day of trade, March 28.
On March 28 over 122 million shares of the MB Securities Joint Stock Company were officially listed and traded on the Hanoi Stock Exchange (HNX), under security code MBS.
The offering price to the market was VND10,000 ($0.45) per share.
Charter capital now stands at VND1.22 trillion ($53.80 million).
MB Bank is the largest shareholder, with 79.52 per cent.
In 2015 MBS recorded revenue of more than VND390.7 billion ($16.62 million) and profit of VND9.2 billion ($412,528), down 87 per cent against 2014.
After its first day of trade MBS closed at VND7,700 ($0.35), down 23 per cent, on total trade of around 340,000 shares.