On December 12, in Vietnam, the black market US dollar buy rate was VND 27,100 and the sell rate was VND 27,200, a change of 20 and 20, respectively, for a mid-market rate of VND 27,150, according to Ty Gia USD.
Meanwhile, the State Bank of Vietnam’s central exchange rate was set at VND 25,148, while the Google Finance mid-market rate stood at VND 26,306.
The spread between the SBV’s central exchange rate and black-market mid-market rates was VND 2,002 or 7.96 percent.
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Vietnam exchange rates, 12 December 2025
| 12 Nov | 11 Dec | Change | % | |
| Black Market: Mid-market | 27,150 | 27,150 | 0 | 0.00% |
| SBV: Central Exchange Rate | 25,148 | 25,154 | -6 | -0.02% |
| Google Finance: Mid Market Rate | 26,306 | 26,332 | -27 | -0.10% |
| Black Market: Buy | 27,100 | 27,120 | -20 | -0.07% |
| Black Market: Sell | 27,200 | 27,180 | 20 | 0.07% |
| Spread: SBV / Black Market MM | 2,002 | 1,996 | 6 | 0.30% |
| Spread: SBV / Black Market MM | 7.96% | 7.94% | – | – |
Open market operations
The State Bank of Vietnam conducted repo operations worth US$46.14 million for 7 days, US$61.04 million for 14 days, US$154.21 million for 28 days, US$190.93 million for 91 days, with no 7-day T-bills issued.
Vietnam open market operations, 12 December 2025
| 12 Nov | 11 Dec | |
| Repos – 7 Days US$ | $46,140,496 | $248,765,206 |
| Repos – 14 Days US$ | $61,037,500 | $78,852,987 |
| Repos – 28 Days US$ | $154,213,346 | $300,891,823 |
| Repos – 91 Days US$ | $190,927,080 | $253,381,189 |
| Total | $452,318,421 | $881,891,204 |
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Interbank interest rates
Vietnam’s interbank interest rates fell across most tenors.
The overnight rate decreased to 7.33 percent (down 0.15 points).
The 1-week rate fell to 7.47 percent, and the 2-week rate fell to 7.36 percent.
The 1-month rate decreased to 7.36 percent, while the 3-month and 6-month rates fell to 7.27 and fell to 7.34 percent respectively.
The 9-month tenor was unchanged at 6.52 percent.
Vietnam interbank interest rates, 12 December 2025
| 12 Nov | 11 Dec | Change | |
| Overnight | 7.33 | 7.48 | -0.15 |
| 1 Week | 7.47 | 7.51 | -0.04 |
| 2 Weeks | 7.36 | 7.43 | -0.07 |
| 1 Month | 7.36 | 7.40 | -0.04 |
| 3 Months | 7.27 | 7.45 | -0.18 |
| 6 Months | 7.34 | 7.40 | -0.06 |
| 9 Months | 6.52 | 6.52 | 0.00 |