Senate Three-Way Combo: Ohio, Iowa, Maine

Polymarket Elections › President 2028 Closes Nov 3 · $1.3K today · $26.4K traded · $3.2K at stake · prices read 28 min ago

The odds

31%Dems sweep
  • Dems sweep31%▼ 6
  • Dems OH & ME, Reps IA21%▼ 1
  • Reps sweep20%▲ 3
  • Dems OH, Reps IA & ME8%
  • Reps OH & ME, Dems IA7%
  • Reps OH & IA, Dems ME3%▼ 2
  • Dems OH & IA, Reps ME2%▼ 6
  • Reps OH, Dems IA & ME1%

How the odds have moved

Dems sweep: 28% on Oct 20, 31% now.

Each outcome's chance over time on Polymarket. The dots along the bottom are headlines about its subject: point at one to read it.

Why it moved

  1. Oct 26, 11 PM ETDems sweep: 36% → 31%

    No headline about it in the hours around this move.

  2. Oct 21, 7 PM ETDems sweep: 27% → 34%

The biggest swings over the chart's period, each with the headlines about the market's subject published in the hours before it. News and odds moving together is not proof one caused the other.

Every outcome

Outcome Chance Day Bid Ask Pays Traded
Dems sweep 31% ▼ 6 30¢ 31¢ $3.23 $4K
Dems OH & ME, Reps IA 21% ▼ 1 18¢ 23¢ $4.35 $3.5K
Reps sweep 20% ▲ 3 16¢ 23¢ $4.35 $4.1K
Dems OH, Reps IA & ME 8% 5¢ 11¢ $8.85 $2.6K
Reps OH & ME, Dems IA 7% 2¢ 12¢ $8.62 $4.5K
Reps OH & IA, Dems ME 3% ▼ 2 2¢ 4¢ $27.03 $1.9K
Dems OH & IA, Reps ME 2% ▼ 6 1¢ 3¢ $38.46 $4.1K
Reps OH, Dems IA & ME 1% 0¢ 1¢ $90.91 $1.7K

"Pays" is what a $1 stake returns if that outcome happens, at the price shown (before any fees). Bid and ask are the best prices to sell and buy "Yes".

The news: Senate Three-Way Combo, Ohio, Iowa

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