On September 10, the State Bank of Vietnam set the central exchange rate at VND 25,221 per US dollar, a drop of 15 dong from the previous day.
The Google Finance mid-market rate stood at VND 26,394.97, little changed from September 9.
The black market mid-rate held at VND 26,965, widening the gap with the official rate to VND 1,744 or 6.91 percent, up from 2.19 percent a day earlier.
Open market operations
The State Bank maintained liquidity injections through repos, with US$37.89 million across 7-day, 14-day, and 28-day tenors, while a new 91-day repo line was added at US$37.31 million.
T-bills remained inactive with no issuance.
Interbank rates
Overnight interbank rates eased to 4.19 percent from 4.40 percent, while one-week rates slipped to 4.41 percent.
Two-week rates were marginally lower at 4.63 percent. One-month rates rose to 5.00 percent, three-month fell to 5.48 percent, and six-month held steady at 5.88 percent.
Market sentiment
The sharp widening of the black market premium highlights persistent dollar demand pressures, even as the central bank continues to stabilise liquidity through repos and interbank funding.
See also: How Low Can the Vietnamese Dong Go? Why it’s Sliding & What Might Happen Next