| Date | Bid | Offer |
|---|---|---|
| May 31 2022 | R$ 4.7283 | R$ 4.7289 |
| May 30 2022 | R$ 4.7210 | R$ 4.7216 |
| May 27 2022 | R$ 4.7428 | R$ 4.7434 |
| May 26 2022 | R$ 4.7961 | R$ 4.7967 |
| May 25 2022 | R$ 4.8353 | R$ 4.8359 |
| May 24 2022 | R$ 4.8100 | R$ 4.8106 |
| May 23 2022 | R$ 4.7967 | R$ 4.7973 |
| May 20 2022 | R$ 4.8771 | R$ 4.8777 |
| May 19 2022 | R$ 4.9192 | R$ 4.9198 |
| May 18 2022 | R$ 4.9586 | R$ 4.9592 |
| May 17 2022 | R$ 4.9670 | R$ 4.9676 |
| May 16 2022 | R$ 5.0660 | R$ 5.0666 |
| May 13 2022 | R$ 5.1069 | R$ 5.1075 |
| May 12 2022 | R$ 5.1476 | R$ 5.1482 |
| May 11 2022 | R$ 5.1238 | R$ 5.1244 |
| May 10 2022 | R$ 5.1384 | R$ 5.1390 |
| May 09 2022 | R$ 5.1334 | R$ 5.1340 |
| May 06 2022 | R$ 5.0744 | R$ 5.0750 |
| May 05 2022 | R$ 5.0045 | R$ 5.0051 |
| May 04 2022 | R$ 5.0087 | R$ 5.0093 |
| May 03 2022 | R$ 5.0161 | R$ 5.0167 |
| May 02 2022 | R$ 5.0260 | R$ 5.0266 |
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.