| Date | Bid | Offer |
|---|---|---|
| Dec 31 2020 | R$ 4.0124 | R$ 4.0139 |
| Dec 30 2020 | R$ 3.9927 | R$ 3.9942 |
| Dec 29 2020 | R$ 3.9539 | R$ 3.9554 |
| Dec 28 2020 | R$ 3.9634 | R$ 3.9649 |
| Dec 24 2020 | R$ 3.9351 | R$ 3.9368 |
| Dec 23 2020 | R$ 3.9204 | R$ 3.9219 |
| Dec 22 2020 | R$ 3.8708 | R$ 3.8728 |
| Dec 21 2020 | R$ 3.8963 | R$ 3.8978 |
| Dec 18 2020 | R$ 3.8786 | R$ 3.8816 |
| Dec 17 2020 | R$ 3.8552 | R$ 3.8566 |
| Dec 16 2020 | R$ 3.8610 | R$ 3.8625 |
| Dec 15 2020 | R$ 3.8420 | R$ 3.8435 |
| Dec 14 2020 | R$ 3.8116 | R$ 3.8131 |
| Dec 11 2020 | R$ 3.8191 | R$ 3.8206 |
| Dec 10 2020 | R$ 3.8226 | R$ 3.8241 |
| Dec 09 2020 | R$ 3.8113 | R$ 3.8143 |
| Dec 08 2020 | R$ 3.7743 | R$ 3.7752 |
| Dec 07 2020 | R$ 3.7963 | R$ 3.7978 |
| Dec 04 2020 | R$ 3.8413 | R$ 3.8443 |
| Dec 03 2020 | R$ 3.8430 | R$ 3.8440 |
| Dec 02 2020 | R$ 3.8569 | R$ 3.8583 |
| Dec 01 2020 | R$ 3.8822 | R$ 3.8837 |
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