Trading volume of derivatives plummeted in April in parallel with the sluggishness of the underlying market, showing an increasingly close link between these two markets.

More than 350 foreign investors were granted securities trading codes in April, bringing the total number of foreign investors able to participate in the Viet Nam’s securities market to nearly 30,240, according to the Viet Nam Securities Depository (VSD).

There are many securities products that are widely used in other countries but have not yet appeared on the Vietnamese stock market, said Phan Duc Hieu, deputy director of the Central Institute for Economic Management (CIEM).

Vietnamese shares slightly declined on Thursday morning amid depleting liquidity due to market caution.

The benchmark VN-Index on the Ho Chi Minh Stock Exchange dropped 0.66 per cent to close at 951.22 points.

Vietnamese shares declined on Wednesday morning as caution expanded across the market, weighing on large-cap companies.

Vietnamese shares fell for a fourth trading day as investors waited for the outcome of US-China trade talks this week.