| Date | Bid | Offer |
|---|---|---|
| Dec 30 2011 | R$ 1.8392 | R$ 1.8401 |
| Dec 29 2011 | R$ 1.8317 | R$ 1.8327 |
| Dec 28 2011 | R$ 1.8279 | R$ 1.8288 |
| Dec 27 2011 | R$ 1.8198 | R$ 1.8208 |
| Dec 26 2011 | R$ 1.8186 | R$ 1.8218 |
| Dec 23 2011 | R$ 1.8208 | R$ 1.8219 |
| Dec 22 2011 | R$ 1.8136 | R$ 1.8144 |
| Dec 21 2011 | R$ 1.8003 | R$ 1.8012 |
| Dec 20 2011 | R$ 1.8009 | R$ 1.8018 |
| Dec 19 2011 | R$ 1.7975 | R$ 1.7986 |
| Dec 16 2011 | R$ 1.7805 | R$ 1.7815 |
| Dec 15 2011 | R$ 1.8013 | R$ 1.8023 |
| Dec 14 2011 | R$ 1.7994 | R$ 1.8004 |
| Dec 13 2011 | R$ 1.7963 | R$ 1.7971 |
| Dec 12 2011 | R$ 1.7720 | R$ 1.7731 |
| Dec 09 2011 | R$ 1.7717 | R$ 1.7726 |
| Dec 08 2011 | R$ 1.7657 | R$ 1.7667 |
| Dec 07 2011 | R$ 1.7764 | R$ 1.7774 |
| Dec 06 2011 | R$ 1.7680 | R$ 1.7690 |
| Dec 05 2011 | R$ 1.7598 | R$ 1.7608 |
| Dec 02 2011 | R$ 1.7559 | R$ 1.7569 |
| Dec 01 2011 | R$ 1.7635 | R$ 1.7645 |
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