| Date | Bid | Offer |
|---|---|---|
| Jun 30 2021 | R$ 4.0316 | R$ 4.0334 |
| Jun 29 2021 | R$ 3.9939 | R$ 3.9956 |
| Jun 28 2021 | R$ 4.0089 | R$ 4.0097 |
| Jun 25 2021 | R$ 4.0013 | R$ 4.0031 |
| Jun 24 2021 | R$ 3.9938 | R$ 3.9955 |
| Jun 23 2021 | R$ 4.0304 | R$ 4.0322 |
| Jun 22 2021 | R$ 4.0569 | R$ 4.0587 |
| Jun 21 2021 | R$ 4.0717 | R$ 4.0735 |
| Jun 18 2021 | R$ 4.0447 | R$ 4.0465 |
| Jun 17 2021 | R$ 4.0765 | R$ 4.0783 |
| Jun 16 2021 | R$ 4.1260 | R$ 4.1278 |
| Jun 15 2021 | R$ 4.1681 | R$ 4.1690 |
| Jun 14 2021 | R$ 4.1784 | R$ 4.1803 |
| Jun 11 2021 | R$ 4.2085 | R$ 4.2104 |
| Jun 10 2021 | R$ 4.1853 | R$ 4.1861 |
| Jun 09 2021 | R$ 4.1741 | R$ 4.1763 |
| Jun 08 2021 | R$ 4.1715 | R$ 4.1723 |
| Jun 07 2021 | R$ 4.1850 | R$ 4.1869 |
| Jun 04 2021 | R$ 4.1903 | R$ 4.1914 |
| Jun 02 2021 | R$ 4.2450 | R$ 4.2470 |
| Jun 01 2021 | R$ 4.2903 | R$ 4.2923 |
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.