Brazilian financial assets experienced a significant rally following the first round of the presidential election, where Flávio Bolsonaro secured more than 47% of the vote, defeating incumbent President Luiz Inácio Lula da Silva by nearly two percentage points. The results have recalibrated investor expectations, with prediction market platforms Kalshi and Polymarket raising Bolsonaro’s probability of winning the presidency to over 80% and 85%, respectively, up from approximately 60% and 63% prior to the count. This shift occurred despite pre-election polls suggesting Bolsonaro would trail Lula in the initial tally, although he was already favored to win a run-off.
Market reaction was immediate, with the iShares MSCI Brazil ETF (EWZ) rising more than 12% on Monday, while U.S.-listed shares of Itau Unibanco gained 15% and Banco Bradesco surged 19%. The local Bovespa index also climbed 8%. Investors broadly view Bolsonaro as more favorable to markets due to his promises of greater fiscal discipline, contrasting with Brazil's deficit-to-GDP ratio which stood at almost 10% in June. The candidates will face each other in a run-off scheduled for October 25. Lula, seeking a fourth term, has campaigned by linking Flávio Bolsonaro to his father Jair Bolsonaro’s efforts to contest the 2022 election loss and alleging corruption.
The sharp divergence between pre-election polling expectations and actual first-round results highlights the sensitivity of Brazilian asset prices to perceived shifts in political power. The double-digit gains in banking stocks and broad equity indices suggest that investors are aggressively pricing in a transition toward stricter fiscal policies, viewing the incumbent administration’s high deficit levels as a primary risk factor. This rapid repricing indicates that market participants believe the probability of a policy pivot has increased substantially, moving beyond mere speculation to concrete valuation adjustments based on the candidate’s stated economic platform.
However, the reliance on prediction market data introduces an element of volatility that may not fully account for the complexities of the remaining campaign period. While Bolsonaro’s lead is substantial, the run-off format allows for late-breaking developments or strategic campaigning that could alter voter sentiment before the October 25 deadline. Institutional investors must consider whether the current market optimism adequately discounts potential political instability or regulatory uncertainty during the transition, particularly given the historical context of contested elections and the ongoing legal and reputational challenges facing the Bolsonaro family.
