HoSE had raised the standard trading lot to 100 in January to reduce the number of transactions after its trading system was overloaded for weeks due to a surge in the number of new investors.

But a new system developed by technology giant FPT, which has been used since July 5, has resolved these issues.

Nearly 620,000 new securities accounts were opened in the first six months, 58 percent more than in the whole of last year, according to the Vietnam Securities Depository.

The ministry added authorities also need to assess HoSE’s capability to relist stocks that had temporarily been moved to the Hanoi Stock Exchange.