| Date | Bid | Offer |
|---|---|---|
| Jul 31 2023 | R$ 4.7409 | R$ 4.7415 |
| Jul 28 2023 | R$ 4.7247 | R$ 4.7253 |
| Jul 27 2023 | R$ 4.7196 | R$ 4.7202 |
| Jul 26 2023 | R$ 4.7362 | R$ 4.7368 |
| Jul 25 2023 | R$ 4.7490 | R$ 4.7496 |
| Jul 24 2023 | R$ 4.7451 | R$ 4.7457 |
| Jul 21 2023 | R$ 4.7726 | R$ 4.7732 |
| Jul 20 2023 | R$ 4.7882 | R$ 4.7888 |
| Jul 19 2023 | R$ 4.7994 | R$ 4.8000 |
| Jul 18 2023 | R$ 4.8034 | R$ 4.8040 |
| Jul 17 2023 | R$ 4.8296 | R$ 4.8302 |
| Jul 14 2023 | R$ 4.7951 | R$ 4.7957 |
| Jul 13 2023 | R$ 4.8032 | R$ 4.8038 |
| Jul 12 2023 | R$ 4.8052 | R$ 4.8058 |
| Jul 11 2023 | R$ 4.8943 | R$ 4.8949 |
| Jul 10 2023 | R$ 4.8729 | R$ 4.8735 |
| Jul 07 2023 | R$ 4.8793 | R$ 4.8799 |
| Jul 06 2023 | R$ 4.8971 | R$ 4.8977 |
| Jul 05 2023 | R$ 4.8571 | R$ 4.8577 |
| Jul 04 2023 | R$ 4.8050 | R$ 4.8056 |
| Jul 03 2023 | R$ 4.7870 | R$ 4.7876 |
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.