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Markets/Will Carlos Roberto Massa Júnior win the 2026 Brazilian presidential election?
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Will Carlos Roberto Massa Júnior win the 2026 Brazilian presidential election?

Closes October 4, 2026

Cross-venue entity

Polymarket Price

6%YES
94%NO

Volume 24h

$14K

Liquidity

$67K

Bid / Ask

6% / 6%

Spread

0.20pp

Expert Signal

6%

Bayesian YES estimate

vs market+0.0pp
confidence21%
methodensemble

✦ AI Analysis

Synthesizes price, cross-venue gaps, Bayesian edge, and event context into a concise brief.

Price History

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Price History

+2.0pp

Key Moments

First recorded

4% YES

Feb 28, 2026

Current

6% YES (-0.3pp recent)

Mar 23, 2026

Order Book (YES)

Expected Value Calculator

%
1%Market: YES 6%99%
Buy YES@ 6¢

-1.6%

EV per $ wagered

Buy NO@ 94¢
Edge

+0.1%

EV per $ wagered

Full Kelly1.6%
½ Kelly0.8%
Buy NO+0.1% EV per dollar wagered·Kelly 1.6%

EV = return on investment if your probability is correct. Kelly = optimal bankroll fraction (½ Kelly is a common conservative choice). Fees not included.

Backtest Strategy

50%

Enter when YES price ≤ this

Research Summary

Prediction markets currently price "Will Carlos Roberto Massa Júnior win the 2026 Brazilian presidential election?" at 6% YES / 94% NO. In the last 24 hours, $14K has been traded. A Bayesian estimate puts the probability at 6%. The bid-ask spread is 0.20 percentage points. The market closes on October 4, 2026.

Cite this snapshot

ForecastMind (2026-03-23). "Will Carlos Roberto Massa Júnior win the 2026 Brazilian presidential election?." Prediction market snapshot: YES 6%, NO 94%. Retrieved from https://forecastmind.org/markets/601824