Market comparison
How many House seats will the Democrats win in Minnesota?
2 venues · 5 outcome rows · 5 comparable lines · event identity linked · 0 verified parity · active
Kalshi
Open venue ↗5 outcomes · $30K reported volume
Observed 18s ago
Recorded venue end date: Nov 3, 2027
Polymarket
Open venue ↗5 outcomes · $19K reported volume
Observed 3m ago
Recorded venue end date: Nov 4, 2026
Known rule differences between venues
- Seat counts depend on when races are called; venues use different settlement deadlines for uncalled seats.
A shared identity alone does not make a price difference executable.
| Outcome | Kalshi | Polymarket | Difference |
|---|---|---|---|
<3 Partial parityPayoffs match in ordinary outcomes; see the rule differences above. | 0.3 pp | ||
3 Partial parityPayoffs match in ordinary outcomes; see the rule differences above. | 2.2 pp | ||
4 Partial parityPayoffs match in ordinary outcomes; see the rule differences above. | 1.5 pp | ||
5 Partial parityPayoffs match in ordinary outcomes; see the rule differences above. | 1.5 pp | ||
6+ Partial parityPayoffs match in ordinary outcomes; see the rule differences above. | 1.9 pp |
<3
Partial parityPayoffs match in ordinary outcomes; see the rule differences above.
Kalshi
Polymarket
Price difference 0.3 pp
3
Partial parityPayoffs match in ordinary outcomes; see the rule differences above.
Kalshi
Polymarket
Price difference 2.2 pp
4
Partial parityPayoffs match in ordinary outcomes; see the rule differences above.
Kalshi
Polymarket
Price difference 1.5 pp
5
Partial parityPayoffs match in ordinary outcomes; see the rule differences above.
Kalshi
Polymarket
Price difference 1.5 pp
6+
Partial parityPayoffs match in ordinary outcomes; see the rule differences above.
Kalshi
Polymarket
Price difference 1.9 pp
Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.