Published Tuesday, 20 October, 7:00 p.m. ET · Source: B3 closing data via Agência Brasil and InfoMoney
Key Facts
—The number. Brazil’s Ibovespa stock index rose 1.57% to 208,295.98 on Tuesday 20 October 2026, while the dollar fell 0.58% to 5.019 reais.
—What changed. It was the dollar’s third straight daily fall against the real, and the index closed at its highest level since 9 October.
—Why it moved. A weaker dollar worldwide, foreign money entering Brazilian stocks and a lower oil price lifted risk appetite ahead of the 25 October runoff.
—Market expectation. Not stated in the closing reports.
—Prediction markets. Polymarket prices Flávio Bolsonaro at 81.2% and Lula at 18.5% to win the presidency (20 October 2026, 6:40 p.m. ET).
—Power Index Brazil ranks 1st of 14 in The Rio Times Latin America Power Index, with 75.0 points (October 2026 edition).
Runoff · Sunday, 25 October
Brazil Runoff 2026: Lula vs Flávio
Date, polls, debates, odds and how the runoff works, updated every day.
Brazil runoff polls · Polymarket and Kalshi odds · When results come · Brazil Election Data Room
Prediction markets · who wins the runoff
Implied chance of winning Brazil’s presidency on 25 October, from traders’ prices.
Polymarket
Flávio Bolsonaro 80% · Lula 19.5% (US$190 million traded)
Kalshi (regulated in the US by the CFTC)
Flávio Bolsonaro 82% · Lula 21%
As of 20 October, 7:20 pm ET (00:20 Lisbon), updated every 20 minutes. Prices are bets, not polls, and can move fast.
Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely. We show them next to polls and official results, never instead of them.
Brazilian stocks jumped and the real strengthened on Tuesday 20 October 2026. The Ibovespa, the main index of the B3 exchange in São Paulo, rose 1.57% to 208,295.98 points, and the dollar fell 0.58% to 5.019 reais, according to Agência Brasil.
That is the dollar’s third daily fall in a row, which leaves one real worth about US$0.199. For dollar investors, the move comes five days before the presidential runoff, as investors weigh the outlook for the Brazil economy.
Sources: Banco Central do Brasil (Selic, Focus survey, PTAX), IBGE (IPCA), EODHD (market quotes). Checked Oct 20, 23:30 UTC.
How the Real and Stocks Moved
The dollar came within a whisker of 5.00 reais during the session before closing at 5.019. The Ibovespa touched an intraday high of 208,941.57 and closed at 208,295.98, its highest level since 9 October, according to Agência Brasil.
The EWZ, the US-listed fund that tracks Brazilian shares, gained about 2.4% to US$42.94 in New York, according to RT data. The index also closed above its 50-day average line on the chart below.
Why Investors Bought Brazil
Globally, the dollar slipped. The DXY index, which measures the dollar against six major currencies, fell about 0.26% after weaker US housing data and bets on the path of US interest rates, according to Agência Brasil.
Brent crude, the global oil benchmark, fell 0.69% to US$108.79 a barrel on hopes of progress in US-Iran talks. Lower oil eases inflation worries worldwide, which tends to help emerging markets such as Brazil.
At home, foreign investors bought Brazilian stocks, and the market positioned itself for Sunday’s runoff between Flávio Bolsonaro, a conservative senator, and President Luiz Inácio Lula da Silva. A Real Time Big Data poll, with fieldwork from 15 to 19 October, gave Bolsonaro 52% and Lula 48% of valid votes.
Live Market IntelligenceBrazil — Live Market Board
Rio Times · Live Market Intelligence
Brazil — Live Market Board
+1.57%
208,295.98
+1.57%
69,727.44
+1.04%
10,926.50
-0.42%
3,017,221
—
2,533.22
+0.47%
59,903.86
-0.06%
| Instrument | Last | Change | YoY | Prev. | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| IBOV | 208,295.98 | +1.57% | +21.85% | 205,079.25 | 168,310 | 167,142 | — |
| USD/BRL | 5.16 | +0.01% | -5.13% | 5.16 | 5.18 | 5.14 | — |
| SELIC | 14.00% | — | — | — | — | — | |
| PETR4 | 41.64 | -0.05% | +35.19% | 41.66 | 41.97 | 41.15 | 41,499,400 |
| VALE3 | 72.97 | +0.83% | +30.75% | 72.37 | 73.54 | 72.66 | 17,658,000 |
| ITUB4 | 38.60 | -1.03% | +4.57% | 39.00 | 39.34 | 38.39 | 29,487,800 |
| BBDC4 | 16.85 | +0.36% | +3.50% | 16.79 | 16.90 | 16.67 | 19,416,900 |
| BBAS3 | 19.37 | +0.47% | +0.73% | 19.28 | 19.44 | 19.16 | 11,069,200 |
| B3SA3 | 14.26 | -0.21% | +12.73% | 14.29 | 14.47 | 14.11 | 33,037,800 |
| ABEV3 | 14.89 | -0.80% | +21.91% | 15.01 | 15.07 | 14.81 | 16,453,100 |
| WEGE3 | 47.59 | +0.49% | +29.99% | 47.36 | 48.08 | 47.36 | 3,364,600 |
| PRIO3 | 59.14 | -0.19% | +50.67% | 59.25 | 59.81 | 58.74 | 3,325,600 |
| SUZB3 | 41.33 | +2.35% | -23.55% | 40.38 | 41.48 | 40.35 | 3,914,900 |
| RENT3 | 34.68 | -0.09% | +0.84% | 34.71 | 34.96 | 34.35 | 7,979,100 |
| AZZA3 | 15.89 | -2.63% | -53.76% | 16.32 | 16.42 | 15.82 | 1,330,300 |
| CSNA3 | 4.30 | +0.47% | -42.65% | 4.28 | 4.41 | 4.26 | 10,076,100 |
| GGBR4 | 24.69 | +2.19% | +51.38% | 24.16 | 24.85 | 24.18 | 7,047,600 |
| ENEV3 | 24.21 | -1.38% | +70.49% | 24.55 | 24.64 | 23.99 | 9,297,000 |
What Prediction Markets Say
Polymarket, a prediction market where traders bet real money, prices a Flávio Bolsonaro win at 81.2% and a Lula win at 18.5%, with about US$189.5 million traded on the contest (20 October 2026, 6:40 p.m. ET). These prices are bets, not polls, and Kalshi, another market, is regulated in the US by the CFTC.
Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely. We show them next to polls and official results, never instead of them.
What It Means for US Readers
A stronger real makes Brazilian assets worth more in US dollars, so the same reais of profit convert into more dollars. The real-to-dollar exchange rate also matters for travellers, because US$100 bought about 502 reais at Tuesday’s close.
Investors who follow the Ibovespa through the EWZ or ADRs such as Petrobras (PBR), Vale (VALE), Itaú (ITUB) and Nu Holdings (NU) saw the day’s gains in dollar terms. Moves driven by election positioning can reverse quickly, so the outcome on 25 October is the next test.
What Is Not Known
The closing reports do not say how much of the rally came from foreign buyers and how much from local funds. It is also unclear whether the real can hold the 5.00 level once the runoff result is known.
Published market data differs slightly by source and cut-off time. Figures here follow the B3 close and the closing rate reported by Agência Brasil.
Sources
Agência Brasil, market close · InfoMoney, Ibovespa close · B3 · Polymarket · RT market data
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief
Frequently Asked Questions
What happened to the Brazilian real on 20 October 2026?
The dollar closed at 5.019 reais, down 0.58% and its third straight fall, according to Agência Brasil. One real was therefore worth about US$0.199.
How did Brazilian stocks do on 20 October 2026?
The Ibovespa, the main index of the B3 exchange in São Paulo, rose 1.57% to 208,295.98 points. It reached an intraday high of 208,941.57, according to InfoMoney.
Why did the dollar fall against the real?
The dollar weakened worldwide, with the DXY dollar index down about 0.26%, and foreign investors sent money into Brazilian stocks. Analysts also pointed to the market’s positioning ahead of the 25 October presidential runoff.
When is Brazil’s presidential runoff?
Brazil votes in the runoff on Sunday 25 October 2026, between Flávio Bolsonaro and Luiz Inácio Lula da Silva. The electoral authority, the TSE, publishes the official results.