| Date | Bid | Offer |
|---|---|---|
| Dec 31 2018 | R$ 2.8439 | R$ 2.8451 |
| Dec 28 2018 | R$ 2.8401 | R$ 2.8418 |
| Dec 27 2018 | R$ 2.8826 | R$ 2.8839 |
| Dec 26 2018 | R$ 2.8866 | R$ 2.8877 |
| Dec 24 2018 | R$ 2.8598 | R$ 2.8614 |
| Dec 21 2018 | R$ 2.8520 | R$ 2.8533 |
| Dec 20 2018 | R$ 2.8531 | R$ 2.8544 |
| Dec 19 2018 | R$ 2.8949 | R$ 2.8962 |
| Dec 18 2018 | R$ 2.9052 | R$ 2.9070 |
| Dec 17 2018 | R$ 2.9186 | R$ 2.9193 |
| Dec 14 2018 | R$ 2.9193 | R$ 2.9204 |
| Dec 13 2018 | R$ 2.9000 | R$ 2.9008 |
| Dec 12 2018 | R$ 2.8944 | R$ 2.8957 |
| Dec 11 2018 | R$ 2.9103 | R$ 2.9121 |
| Dec 10 2018 | R$ 2.9276 | R$ 2.9289 |
| Dec 07 2018 | R$ 2.9362 | R$ 2.9376 |
| Dec 06 2018 | R$ 2.9213 | R$ 2.9226 |
| Dec 05 2018 | R$ 2.9004 | R$ 2.9017 |
| Dec 04 2018 | R$ 2.8998 | R$ 2.9005 |
| Dec 03 2018 | R$ 2.9054 | R$ 2.9068 |
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 Feb 27 2026