| Date | Bid | Offer |
|---|---|---|
| May 29 2020 | R$ 3.6021 | R$ 3.6036 |
| May 28 2020 | R$ 3.5580 | R$ 3.5589 |
| May 27 2020 | R$ 3.4918 | R$ 3.4927 |
| May 26 2020 | R$ 3.5674 | R$ 3.5683 |
| May 25 2020 | R$ 3.5850 | R$ 3.5865 |
| May 22 2020 | R$ 3.6416 | R$ 3.6437 |
| May 21 2020 | R$ 3.6745 | R$ 3.6754 |
| May 20 2020 | R$ 3.7595 | R$ 3.7605 |
| May 19 2020 | R$ 3.7564 | R$ 3.7574 |
| May 18 2020 | R$ 3.7359 | R$ 3.7374 |
| May 15 2020 | R$ 3.7315 | R$ 3.7325 |
| May 14 2020 | R$ 3.8119 | R$ 3.8129 |
| May 13 2020 | R$ 3.8136 | R$ 3.8152 |
| May 12 2020 | R$ 3.7556 | R$ 3.7566 |
| May 11 2020 | R$ 3.7498 | R$ 3.7514 |
| May 08 2020 | R$ 3.7713 | R$ 3.7728 |
| May 07 2020 | R$ 3.7928 | R$ 3.7937 |
| May 06 2020 | R$ 3.6348 | R$ 3.6358 |
| May 05 2020 | R$ 3.5738 | R$ 3.5748 |
| May 04 2020 | R$ 3.5780 | R$ 3.5795 |
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.