Brazil’s PTAX dollar rate falls 3.02% to R$5.3346

The dollar lost ground against the Brazilian real on Tuesday (Oct. 27), according to Brazil's central bank. The bank's benchmark PTAX rate closed at R$5.3346 per dollar (selling rate), down 3.02% from R$5.5007 on Monday (Oct. 26). The decline followed an extraordinary jump: on Monday the rate had climbed 9.19% from R$5.0377 on Friday (Oct. 23), the highest close in 90 days. Even after Tuesday's drop, the PTAX is still 5.89% above Friday's close.

The PTAX bulletins

The PTAX is the reference exchange rate the central bank calculates from four daily quotes collected from institutions authorized to trade foreign currency. It is used in contracts. It is not the rate charged at currency exchange houses or on purchases abroad, which can include a spread and the IOF, Brazil's tax on financial transactions.

The opening bulletin, at 10:02 a.m. Brasília time, put the selling rate at R$5.3396. At 11:02 a.m. it fell to R$5.3180, the lowest of the day's bulletins, and at 12:04 p.m. it rose to R$5.3407, the highest. The last intermediate bulletin, at 1:05 p.m., showed R$5.3401, and the closing rate, also released at 1:05 p.m., settled at R$5.3346. All figures are selling rates. The gap between the lowest and highest bulletin was R$0.0227.

The euro moved in the same direction. On the closing PTAX, the European currency stood at R$5.9449 (selling), down 3.31% from R$6.1487 on Monday. On Friday the euro was at R$5.6422, so it is still up 5.36% from that level: Tuesday's decline gave back only part of Monday's gain. The central bank used a parity of 1.1144 dollars per euro in the closing bulletin.

For the month and the year

Compared with the Sept. 30 close (R$5.1809), the PTAX is up 2.97% for the month. For the year, measured against R$5.5024 on Dec. 31, 2025, the rate is down 3.05%. Over the past 90 days, the lowest closing PTAX was R$4.9698 on Oct. 6, and the highest was Monday's R$5.5007.

Major currencies at a glance

On the closing selling rates published by the central bank, all 16 currencies tracked by RaisLife, including the dollar, fell against the real on the day. The euro had the biggest drop, 3.31%, to R$5.9449. The British pound slipped 3.27% to R$7.1025, and the Mexican peso 3.21% to R$0.2863. The smallest decline was the Chilean peso's 1.88%, to R$0.005436. None rose on the day.

The pullback did not erase the earlier surge. Against Friday's close, all 16 currencies remain more expensive in reais, with gains ranging from 5.18% (Argentine peso) to 7.24% (Chilean peso). The rates for the Argentine peso and the Turkish lira are reference rates and may differ from those used in those countries.

Each currency's rate is listed in the table exchange rates: major currencies against the real, with separate pages for the euro and the Chilean peso.

Ibovespa

The Ibovespa, the benchmark index of the São Paulo stock exchange, closed Tuesday (Oct. 27) at 175.710 points, down 0.51% from 176.608 on Monday. The day's low was 175.130 points. On Monday (Oct. 26) the index had fallen 13.88%, from 205.083 points on Friday (Oct. 23) to 176.608. Tuesday's close is 14.32% below Friday's. The 52-week intraday high, 209.714 points, was recorded on Oct. 9. Since the Dec. 30, 2025 close, the index is up 9.05%, according to Yahoo Finance data used by RaisLife.

The data from the central bank and Yahoo Finance report rates and points, not the reasons behind the moves.

The daily quote and history of the dollar are on the dollar today page.

Sources

• Central Bank of Brazil: PTAX quotes and bulletins
• Central Bank of Brazil: quotes for all currencies
• Yahoo Finance: Ibovespa (^BVSP)

Text by Rai, RaisLife's virtual reporter (artificial intelligence), with automated editorial review. Data: RaisLife economy dashboard.