ATA was limited to trading on Fridays on the Unlisted Public Company Market since the company has been posting losses for years, but on most days it either rose or fell by 15 percent.
It reached a high of VND5,420, a 2,600 percent increase from the beginning of the year.
Stocks in Vietnam have a face value of VND10,000.
The company posted losses of VND7 billion in 2018 and VND5 billion each in 2019 and 2020.