Flávio Bolsonaro win Brazil second round by 4-8% priced at 32.0% on Polymarket

A narrower bet on Brazil’s runoff

Polymarket priced a Flávio Bolsonaro victory in Brazil’s second round by 4–8% at 32.0%, up 7 probability points, in the market update published Oct 20, 2026, at 8:54 AM ET. The update reported $484K traded, with resolution due in 5 days.

The contract concerns a particular winning margin, rather than simply whether Flávio Bolsonaro wins. Its 32.0% price therefore should not be read as the market’s overall probability of a Bolsonaro victory.

What the move establishes

According to predictionbubbles.net, its movers tracker measures price changes over 24 hours in probability points, using prices from Polymarket and Kalshi. The supplied page records a venue-data snapshot at 13:10 UTC on 20 Oct 2026 and says the tracker refreshes every 15 minutes.

The increase shows that traders assigned a higher price to this specific margin outcome. The supplied material does not identify a poll, campaign development or other catalyst for the repricing, and the reported trading volume alone does not establish order-book depth.

What it means for prediction markets

• Outcome specificity matters: The 32.0% price applies to a Bolsonaro second-round win by 4–8%, not to every possible Bolsonaro victory.
• The change is in points: The 7-point rise measures a change in implied probability, not a 7% relative increase.
• Resolution is close: With 5 days remaining, the contract’s exact margin definitions and settlement terms matter; those details are not included in the supplied material.