The bonds, all issued by the State Treasury, have maturity periods of 5-30 years and coupon rates between 1.35 and 3.5 percent a year, down 0.02-0.35 percentage points from August, according to a HNX report.

On the secondary government bond market, where investors buy and sell bonds to each other, average transaction value per session was nearly VND9.4 trillion, up 12 percent from August.

Foreign investors were net buyers of the bonds in September with a value of VND1.07 trillion.

The total value of listed government bonds as of September 30 was more than VND1,270 trillion.