The State Bank of Vietnam (SBV) set the central exchange rate at VND 25,240 per US$1, Thursday, down 7 dong from the previous day.
The Google Finance mid-market rate slipped 25 dong to VND 26,264.99 per US$1.
On the black market, the dollar traded steady at VND 26,450 for buying and VND 26,505 for selling, with the mid-market rate at VND 26,478.
The gap between the black market and Google mid-market rates widened to 213 dong, or 0.81 percent.
Money market
Seven-day repos rose to US$190.37 million from zero the day before, while 14-day repos dropped to zero from US$33.35 million.
A 91-day repo worth US$1.58 million was issued. Treasury bill balances remained at zero.
Interbank rates
Rates for overnight to six-month terms were unchanged, with the overnight rate steady at 5.02 percent, one-week at 5.26 percent, and six-month at 5.80 percent.
See also: Right Now, a Weak Dong Could be Good for Vietnam. Here’s Why.