| Date | Bid | Offer |
|---|---|---|
| Jul 31 2025 | R$ 3.6006 | R$ 3.6022 |
| Jul 30 2025 | R$ 3.6138 | R$ 3.6153 |
| Jul 29 2025 | R$ 3.6282 | R$ 3.6302 |
| Jul 28 2025 | R$ 3.6411 | R$ 3.6426 |
| Jul 25 2025 | R$ 3.6317 | R$ 3.6337 |
| Jul 24 2025 | R$ 3.6443 | R$ 3.6463 |
| Jul 23 2025 | R$ 3.6584 | R$ 3.6604 |
| Jul 22 2025 | R$ 3.6508 | R$ 3.6523 |
| Jul 21 2025 | R$ 3.6314 | R$ 3.6329 |
| Jul 18 2025 | R$ 3.6188 | R$ 3.6203 |
| Jul 17 2025 | R$ 3.6125 | R$ 3.6145 |
| Jul 16 2025 | R$ 3.6321 | R$ 3.6331 |
| Jul 15 2025 | R$ 3.6225 | R$ 3.6247 |
| Jul 14 2025 | R$ 3.6394 | R$ 3.6415 |
| Jul 11 2025 | R$ 3.6639 | R$ 3.6648 |
| Jul 10 2025 | R$ 3.6416 | R$ 3.6431 |
| Jul 09 2025 | R$ 3.5661 | R$ 3.5676 |
| Jul 08 2025 | R$ 3.5587 | R$ 3.5602 |
| Jul 07 2025 | R$ 3.5509 | R$ 3.5530 |
| Jul 04 2025 | R$ 3.5414 | R$ 3.5440 |
| Jul 03 2025 | R$ 3.5622 | R$ 3.5642 |
| Jul 02 2025 | R$ 3.5805 | R$ 3.5825 |
| Jul 01 2025 | R$ 3.5804 | R$ 3.5825 |
Source: Brazilian Central Bank
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Ptax is the main reference rate for the US Dollar in Brazil. It's published daily by the Brazilian Central Bank based on the quotes received from the major foreign exchange dealers in the Brazilian market. It's released by 1 PM (GMT-3) every business day.