On 27 October, the State Bank’s central rate was VND 25,097 per US dollar, unchanged from the previous day.
The black-market mid-rate, however, climbed to VND 27,745, up 175 dong or 0.63 percent, over the weekend.
This has created a gap between the official and black-market mid-rates of VND 2,648, equal to 10.55 percent, compared with 9.85 percent on 24 October.
Google Finance’s mid-market rate stood at VND 26,305, down 9 dong or 0.03 percent.
How Low Can the Vietnamese Dong Go? Why It’s Sliding & What Might Happen Next
Vietnam exchange rates, 27 October 2025
| 27 Oct | 24 Oct | Change | % | |
| SBV: Central Exchange Rate | 25,097 | 25,098 | -1 | 0.00% |
| Google Finance: Mid Market Rate | 26,305 | 26,314 | -9 | -0.03% |
| Black Market: Buy | 27,720 | 27,520 | 200 | 0.73% |
| Black Market: Sell | 27,770 | 27,620 | 150 | 0.54% |
| Black Market: Mid-market | 27,745 | 27,570 | 175 | 0.63% |
| Spread: SBV / Black Market MM | 2,648 | 2,472 | 176 | -% |
| Spread: SBV / Black Market MM | 10.55% | 9.85% | – | – |
Open market operations
Not available at time of writing.
Vietnam open market operations, 27 October 2025
Not available at time of writing.
Interbank interest rates
Interbank interest rates eased across most short-term tenors on 27 October.
The overnight rate fell to 5.81 percent from 6.16 percent, while the one-week and two-week rates slipped to 5.86 and 5.95 percent respectively.
The one-month rate dropped sharply by 63 basis points to 5.37 percent.
Longer tenors were steadier, with the three-month rate at 5.80 percent and the six-month rate rising to 6.18 percent.
The nine-month rate remained unchanged at 5.10 percent.
Vietnam interbank interest rates, 27 October 2025
| 27 Oct | 24 Oct | Change | |
| Overnight | 5.81 | 6.16 | -0.35 |
| 1 Week | 5.86 | 5.91 | -0.05 |
| 2 Weeks | 5.95 | 6.07 | -0.12 |
| 1 Month | 5.37 | 6.00 | -0.63 |
| 3 Months | 5.80 | 5.79 | 0.01 |
| 6 Months | 6.18 | 5.81 | 0.37 |
| 9 Months | 5.10 | 5.10 | 0.00 |
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