Brazil Election Shock: Polymarket Bets and Market Volatility

Luiz Inácio Lula da Silva won Brazil’s presidential runoff with 51.79% of the vote, overturning heavily pro-Flávio Bolsonaro bets on Polymarket and Kalshi. Before the result, Polymarket’s implied odds for Lula were reported at around 16.5%–21.5%, and another snapshot put them at 18.5%; Bolsonaro’s odds reached as high as 83.45%. As results came in, Lula’s contract reportedly hovered near 60 cents despite signs of his likely victory, before surging close to $1. The market recorded about $249 million in trading volume and settled in Lula’s favour. Analysts cited Brazil’s ban on prediction markets and limited local participation as possible reasons prices failed to reflect local information. Later reports said two newly created accounts that bet heavily on Lula made a combined $1.77 million, prompting unconfirmed questions about possible insider trading. A separate trader who had backed Bolsonaro lost more than $430,000. Brazil’s sell-off also drew attention: the Ibovespa fell 13.88% after a trading halt, the real weakened 8.79% against the US dollar, and an EWZ-linked contract on Hyperliquid dropped 27.22% in 24 hours, with about $14.9 million in liquidations, mostly from long positions. For crypto traders, the episode is a reminder that prediction-market odds can be unreliable and that on-chain markets linked to real-world assets can see sharp moves and liquidations. It does not establish a direct change in cryptocurrency fundamentals.