| Date | Bid | Offer |
|---|---|---|
| Jul 31 2024 | R$ 3.6987 | R$ 3.6996 |
| Jul 30 2024 | R$ 3.6934 | R$ 3.6944 |
| Jul 29 2024 | R$ 3.6916 | R$ 3.6932 |
| Jul 26 2024 | R$ 3.7015 | R$ 3.7030 |
| Jul 25 2024 | R$ 3.6939 | R$ 3.6955 |
| Jul 24 2024 | R$ 3.7173 | R$ 3.7188 |
| Jul 23 2024 | R$ 3.6929 | R$ 3.6939 |
| Jul 22 2024 | R$ 3.6896 | R$ 3.6906 |
| Jul 19 2024 | R$ 3.7165 | R$ 3.7180 |
| Jul 18 2024 | R$ 3.7264 | R$ 3.7274 |
| Jul 17 2024 | R$ 3.6767 | R$ 3.6782 |
| Jul 16 2024 | R$ 3.6490 | R$ 3.6505 |
| Jul 15 2024 | R$ 3.6968 | R$ 3.6983 |
| Jul 12 2024 | R$ 3.6994 | R$ 3.7009 |
| Jul 11 2024 | R$ 3.6632 | R$ 3.6647 |
| Jul 10 2024 | R$ 3.6397 | R$ 3.6412 |
| Jul 09 2024 | R$ 3.6626 | R$ 3.6641 |
| Jul 08 2024 | R$ 3.6855 | R$ 3.6870 |
| Jul 05 2024 | R$ 3.7057 | R$ 3.7072 |
| Jul 04 2024 | R$ 3.6881 | R$ 3.6896 |
| Jul 03 2024 | R$ 3.7519 | R$ 3.7534 |
| Jul 02 2024 | R$ 3.7732 | R$ 3.7741 |
| Jul 01 2024 | R$ 3.7165 | R$ 3.7197 |
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.