Brazil's stock market lost over $200 billion after Lula narrowly beat Bolsonaro, stunning investors who had bet on the other side.
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Brazil's stock market just had one of its worst days in years. On Monday, it lost more than $200 billion in value right as trading opened. The reason? President Luiz Inácio Lula da Silva won Sunday's election runoff against Senator Flávio Bolsonaro — and almost nobody saw it coming.
To understand why this matters, here's the key idea: investors hate surprises. Many had bet money that Bolsonaro would win because they believed he'd cut government spending and help lower interest rates. When the opposite happened, they rushed to sell, causing prices to tumble.
Here are the main numbers:
The biggest shock was to prediction markets. On platforms like Polymarket and Kalshi (websites where people bet on real-world events), traders had given Bolsonaro roughly an 80% chance of winning. In these markets, a contract pays $1 if you're right, so an 80-cent price means an 80% expected chance. They got it wrong.
Adding to the uncertainty, Bolsonaro refused to accept the result and said he'll ask the courts to annul (cancel) the election.
The takeaway: When investors bet heavily on one outcome and the opposite happens, markets can swing violently. For now, Brazil's market has erased its 2026 gains, and investors are bracing for more uncertainty.
This is an AI-generated summary. Read the original article at: https://decrypt.co/381828/brazil-stock-market-crashes-lula-upset-victory