| Date | Bid | Offer |
|---|---|---|
| Oct 31 2011 | R$ 1.6878 | R$ 1.6885 |
| Oct 28 2011 | R$ 1.6979 | R$ 1.6986 |
| Oct 27 2011 | R$ 1.7316 | R$ 1.7323 |
| Oct 26 2011 | R$ 1.7599 | R$ 1.7606 |
| Oct 25 2011 | R$ 1.7541 | R$ 1.7548 |
| Oct 24 2011 | R$ 1.7761 | R$ 1.7768 |
| Oct 21 2011 | R$ 1.7796 | R$ 1.7803 |
| Oct 20 2011 | R$ 1.7819 | R$ 1.7826 |
| Oct 19 2011 | R$ 1.7597 | R$ 1.7604 |
| Oct 18 2011 | R$ 1.7717 | R$ 1.7724 |
| Oct 17 2011 | R$ 1.7481 | R$ 1.7488 |
| Oct 14 2011 | R$ 1.7369 | R$ 1.7376 |
| Oct 13 2011 | R$ 1.7529 | R$ 1.7536 |
| Oct 11 2011 | R$ 1.7652 | R$ 1.7658 |
| Oct 10 2011 | R$ 1.7471 | R$ 1.7478 |
| Oct 07 2011 | R$ 1.7659 | R$ 1.7666 |
| Oct 06 2011 | R$ 1.8109 | R$ 1.8116 |
| Oct 05 2011 | R$ 1.8449 | R$ 1.8456 |
| Oct 04 2011 | R$ 1.8848 | R$ 1.8856 |
| Oct 03 2011 | R$ 1.8804 | R$ 1.8811 |
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 03 1984 until Feb 27 2026