| Date | Bid | Offer |
|---|---|---|
| Nov 30 2017 | R$ 3.3147 | R$ 3.3167 |
| Nov 29 2017 | R$ 3.2586 | R$ 3.2606 |
| Nov 28 2017 | R$ 3.2750 | R$ 3.2763 |
| Nov 27 2017 | R$ 3.2846 | R$ 3.2859 |
| Nov 24 2017 | R$ 3.2970 | R$ 3.2979 |
| Nov 23 2017 | R$ 3.2982 | R$ 3.3005 |
| Nov 22 2017 | R$ 3.3014 | R$ 3.3027 |
| Nov 21 2017 | R$ 3.2881 | R$ 3.2900 |
| Nov 20 2017 | R$ 3.2864 | R$ 3.2886 |
| Nov 17 2017 | R$ 3.3090 | R$ 3.3109 |
| Nov 16 2017 | R$ 3.3103 | R$ 3.3116 |
| Nov 14 2017 | R$ 3.3089 | R$ 3.3109 |
| Nov 13 2017 | R$ 3.2996 | R$ 3.3008 |
| Nov 10 2017 | R$ 3.2826 | R$ 3.2848 |
| Nov 09 2017 | R$ 3.2620 | R$ 3.2639 |
| Nov 08 2017 | R$ 3.2503 | R$ 3.2522 |
| Nov 07 2017 | R$ 3.2753 | R$ 3.2772 |
| Nov 06 2017 | R$ 3.2822 | R$ 3.2844 |
| Nov 03 2017 | R$ 3.2832 | R$ 3.2851 |
| Nov 01 2017 | R$ 3.2701 | R$ 3.2710 |
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