| Date | Bid | Offer |
|---|---|---|
| Apr 28 2023 | R$ 3.6885 | R$ 3.6900 |
| Apr 27 2023 | R$ 3.6833 | R$ 3.6848 |
| Apr 26 2023 | R$ 3.7180 | R$ 3.7195 |
| Apr 25 2023 | R$ 3.7132 | R$ 3.7139 |
| Apr 24 2023 | R$ 3.7343 | R$ 3.7359 |
| Apr 20 2023 | R$ 3.7504 | R$ 3.7519 |
| Apr 19 2023 | R$ 3.7501 | R$ 3.7508 |
| Apr 18 2023 | R$ 3.7085 | R$ 3.7101 |
| Apr 17 2023 | R$ 3.6860 | R$ 3.6876 |
| Apr 14 2023 | R$ 3.6955 | R$ 3.6970 |
| Apr 13 2023 | R$ 3.6783 | R$ 3.6791 |
| Apr 12 2023 | R$ 3.6790 | R$ 3.6805 |
| Apr 11 2023 | R$ 3.7177 | R$ 3.7192 |
| Apr 10 2023 | R$ 3.7550 | R$ 3.7566 |
| Apr 06 2023 | R$ 3.7614 | R$ 3.7621 |
| Apr 05 2023 | R$ 3.7494 | R$ 3.7501 |
| Apr 04 2023 | R$ 3.7717 | R$ 3.7733 |
| Apr 03 2023 | R$ 3.7680 | R$ 3.7696 |
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.