Investor Bets Heat Up on Brazil Election as Flávio Bolsonaro Closes on Lula, Fueling EWZ Optimism and Foreign Inflows

As Brazil heads into its October 4, 2026, presidential election with a potential runoff on October 25, the tight race between incumbent President Luiz Inácio Lula da Silva and Senator Flávio Bolsonaro (son of former President Jair Bolsonaro) is drawing renewed foreign investor attention to Brazilian equities. Recent polls from AtlasIntel/Bloomberg and Datafolha show the candidates statistically tied or within margins of error in runoff scenarios, with Flávio Bolsonaro at 47.2% vs. Lula's 46.8% in one survey and similar technical ties in others.[1][2]

Market positioning reflects this uncertainty and potential upside. A Goldman Sachs note highlighted in investor channels notes that equities remain underowned among global investors, with half of surveyed clients seeing at least 20% upside in the iShares MSCI Brazil ETF (EWZ) by year-end in a Flávio Bolsonaro victory scenario. EWZ call open interest has reached all-time highs, and strategies like November call spreads are being discussed amid implied volatility rising toward 45%.[3]

Broader corroboration comes from Brazilian market reporting: large macro funds have ramped up EWZ call spreads betting on post-election gains as the race tightens, contributing to Ibovespa momentum. Goldman Sachs has maintained a constructive stance on Brazil overall, citing high real rates, resilient economy, and potential rate cuts as draws for capital, with foreign ownership of Brazilian stocks reaching multi-year highs in prior periods.[4][5]

Rate-sensitive sectors (financials, real estate, industrials) stand to benefit most if a victory prompts 200-300 bps of Selic cuts, historically amplifying returns in rate-sensitive baskets relative to the broader index. Foreign capital flows, already evident in recent years, could accelerate on policy shifts toward fiscal discipline or pro-market reforms.

This dynamic extends beyond Brazil: a rightward shift could influence regional sentiment in Latin America, while impacts on commodities, rates, and EM allocations may ripple globally, affecting pension funds, asset managers, and local employment in finance, construction, and export sectors tied to Brazilian growth.