| Date | Bid | Offer |
|---|---|---|
| Oct 31 2018 | R$ 4.7493 | R$ 4.7516 |
| Oct 30 2018 | R$ 4.7114 | R$ 4.7136 |
| Oct 29 2018 | R$ 4.6562 | R$ 4.6584 |
| Oct 26 2018 | R$ 4.7119 | R$ 4.7143 |
| Oct 25 2018 | R$ 4.7463 | R$ 4.7485 |
| Oct 24 2018 | R$ 4.7781 | R$ 4.7807 |
| Oct 23 2018 | R$ 4.8115 | R$ 4.8141 |
| Oct 22 2018 | R$ 4.7866 | R$ 4.7885 |
| Oct 19 2018 | R$ 4.8351 | R$ 4.8366 |
| Oct 18 2018 | R$ 4.8266 | R$ 4.8277 |
| Oct 17 2018 | R$ 4.8598 | R$ 4.8617 |
| Oct 16 2018 | R$ 4.8962 | R$ 4.8989 |
| Oct 15 2018 | R$ 4.9140 | R$ 4.9163 |
| Oct 11 2018 | R$ 4.9406 | R$ 4.9417 |
| Oct 10 2018 | R$ 4.9520 | R$ 4.9532 |
| Oct 09 2018 | R$ 4.9113 | R$ 4.9132 |
| Oct 08 2018 | R$ 4.9071 | R$ 4.9094 |
| Oct 05 2018 | R$ 5.0680 | R$ 5.0703 |
| Oct 04 2018 | R$ 5.0792 | R$ 5.0812 |
| Oct 03 2018 | R$ 5.0058 | R$ 5.0085 |
| Oct 02 2018 | R$ 5.1274 | R$ 5.1305 |
| Oct 01 2018 | R$ 5.2464 | R$ 5.2488 |
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.
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Data available from Dec 05 1984 until Jan 28 2026