| Date | Bid | Offer |
|---|---|---|
| Jun 30 2016 | R$ 4.2487 | R$ 4.2511 |
| Jun 29 2016 | R$ 4.3802 | R$ 4.3823 |
| Jun 28 2016 | R$ 4.4194 | R$ 4.4232 |
| Jun 27 2016 | R$ 4.4822 | R$ 4.4861 |
| Jun 24 2016 | R$ 4.6023 | R$ 4.6055 |
| Jun 23 2016 | R$ 4.9610 | R$ 4.9632 |
| Jun 22 2016 | R$ 4.9725 | R$ 4.9750 |
| Jun 21 2016 | R$ 4.9701 | R$ 4.9727 |
| Jun 20 2016 | R$ 4.9685 | R$ 4.9697 |
| Jun 17 2016 | R$ 4.9075 | R$ 4.9100 |
| Jun 16 2016 | R$ 4.9108 | R$ 4.9127 |
| Jun 15 2016 | R$ 4.9289 | R$ 4.9315 |
| Jun 14 2016 | R$ 4.9198 | R$ 4.9217 |
| Jun 13 2016 | R$ 4.9090 | R$ 4.9113 |
| Jun 10 2016 | R$ 4.9115 | R$ 4.9137 |
| Jun 09 2016 | R$ 4.8901 | R$ 4.8930 |
| Jun 08 2016 | R$ 4.9289 | R$ 4.9311 |
| Jun 07 2016 | R$ 5.0583 | R$ 5.0610 |
| Jun 06 2016 | R$ 5.0697 | R$ 5.0724 |
| Jun 03 2016 | R$ 5.1395 | R$ 5.1414 |
| Jun 02 2016 | R$ 5.1829 | R$ 5.1859 |
| Jun 01 2016 | R$ 5.1980 | R$ 5.2007 |
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.