Brazilian stocks jump as Bolsonaro now seen as heavy favorite to win presidency
Brazilian stocks surged after Flávio Bolsonaro's stronger-than-expected first-round performance in the presidential election, making him the heavy favorite to win the upcoming runoff against incumbent Lula.
Intelligence analysis by Gemini 2.5 Flash Lite

Investors are reacting positively to Flávio Bolsonaro's enhanced odds of winning Brazil's presidency, as his platform promises greater fiscal discipline, leading to significant jumps in Brazilian equities and ETFs.
Imagine Brazil is choosing a new leader. One candidate, Bolsonaro, did better in the first vote than people expected. This made investors happy because they think he'll manage money wisely, like saving allowance for a big purchase. So, the value of Brazilian companies' stocks went up a lot, like when a popular toy goes on sale and everyone wants it.
Analysis
Flávio Bolsonaro's Market Appeal
Flávio Bolsonaro's stronger-than-anticipated showing in the first round of Brazil's presidential election has significantly boosted investor confidence, propelling Brazilian stocks to notable gains. The market's preference for Bolsonaro stems from his campaign's promises of enhanced fiscal discipline. This is particularly relevant given Brazil's current economic landscape, where the deficit-to-GDP ratio stood at nearly 10% in June. Investors often view candidates advocating for tighter fiscal policies as more favorable for long-term economic stability and market predictability, contrasting with potential concerns about spending under incumbent administrations.
The immediate market reaction underscores this sentiment. The iShares MSCI Brazil ETF (EWZ) experienced a substantial rise of over 12% on Monday. Furthermore, major Brazilian financial institutions saw significant upticks in their U.S.-listed shares, with Itau Unibanco gaining 15% and Banco Bradesco surging 19%. The local Bovespa index also reflected this positive sentiment, climbing 8%. This broad-based rally indicates that the financial community is pricing in a higher probability of a Bolsonaro victory and views it as a net positive for the Brazilian economy and its investment landscape.
Prediction Market Momentum
The shift in market perception is vividly illustrated by the movement in prediction markets. Prior to the first-round results, Bolsonaro held approximately a 60% chance of winning on the Kalshi platform. However, following his robust performance, which exceeded poll expectations, his odds surged to over 80%. Similarly, on Polymarket, his chances jumped from 63% to 85%. This dramatic increase in implied probability reflects a growing conviction among market participants that Bolsonaro is now the overwhelming favorite to secure the presidency in the runoff election scheduled for October 25th.
This recalibration by prediction markets serves as a key indicator of investor sentiment and perceived political risk. The fact that Bolsonaro outperformed expectations in the initial vote, even while polls suggested he might trail incumbent Luiz Inácio Lula da Silva, has led to a reassessment of his electoral viability. The incumbent Lula, who is seeking a fourth term, faces a challenging path forward as the market increasingly favors his challenger, despite Lula's campaign efforts to link Flávio Bolsonaro to his father's controversial post-election challenges in 2022.
Electoral Dynamics and Investor Expectations
The Brazilian presidential election is heading into a runoff between Flávio Bolsonaro and incumbent Luiz Inácio Lula da Silva, after neither candidate secured a majority in the first round. While Lula's campaign has attempted to tarnish Bolsonaro's image by associating him with his father's efforts to contest the 2022 election results and branding him as corrupt, the market's reaction suggests these tactics have not swayed investor sentiment away from Bolsonaro's perceived economic advantages.
The runoff, set for October 25th, will be closely watched by domestic and international investors alike. The incumbent's ability to counter Bolsonaro's market-friendly narrative and appeal to a broader electorate will be crucial. However, the current market momentum, driven by expectations of greater fiscal prudence under a Bolsonaro presidency, suggests a significant uphill battle for Lula. The performance of Brazilian assets in the lead-up to the runoff will likely continue to reflect these shifting investor preferences and the perceived economic direction of the country.
Key points
- Brazilian stocks surged as Flávio Bolsonaro emerged as the heavy favorite to win the presidential runoff.
- Bolsonaro's stronger-than-expected first-round performance boosted investor confidence in his fiscal discipline promises.
- Prediction markets show Bolsonaro's odds of winning have significantly increased, reflecting market sentiment.
- Major Brazilian ETFs and financial stocks saw substantial gains following the election results.
If Flávio Bolsonaro wins the presidency and implements policies focused on fiscal discipline, Brazil could see sustained economic growth, increased foreign investment, and a more stable currency. This could lead to improved market performance and greater investor confidence in the country's economic future.
Despite market optimism, a Bolsonaro victory could face challenges if his administration struggles to implement promised fiscal reforms due to political opposition or if global economic headwinds impact Brazil's growth. This could lead to market volatility and a reversal of recent gains.



