Introduction

Luiz Inácio Lula da Silva secured a surprising victory in Brazil's presidential runoff, defeating Flávio Bolsonaro and defying prediction markets that had favored the right-wing candidate throughout the campaign.

What Happened

The Superior Electoral Court confirmed Lula with 51.8% of the vote against Flávio Bolsonaro's 48.2%, officially ending the closely contested election. The runoff followed a first-round vote in which prediction markets shifted dramatically toward Bolsonaro, only to reverse in the final days.

Why This Matters

Prediction markets such as Kalshi and Polymarket had assigned Bolsonaro an over 80% chance of victory, yet the actual result defied those odds. The outcome has already impacted financial markets, with Brazil-linked ETFs and major stocks declining sharply on Monday.

Key Takeaways

  • Lula won 51.8% to Flávio Bolsonaro's 48.2% according to Brazil's Superior Electoral Court.
  • Prediction markets underestimated Lula's support, with Kalshi odds dropping to 21% at one point before the result.
  • Brazil's Supreme Court extended voting hours late Sunday, a move Bolsonaro argued disadvantaged his campaign.
  • Market reaction was swift: the iShares MSCI Brazil ETF (EWZ) fell 22%, while Itau Unibanco and Banco Bradesco dropped 20% and nearly 30%, respectively.
  • CNBC discloses a commercial relationship with Kalshi, which offers election-related betting contracts.

Conclusion

Lula's victory marks a significant shift in Brazil's political landscape, overturning expectations from both polling and prediction markets. The result underscores the volatility of election forecasting and sets the tone for economic policy direction in the coming years.