Market comparison
How many UK parliamentary by-elections in 2026?
2 venues · 11 outcome rows · 0 comparable lines · event identity linked · 0 verified parity · active
Polymarket
Open venue ↗6 outcomes · $57K reported volume
Observed 3m ago
Recorded venue end date: Jan 1, 2027
Kalshi
Open venue ↗5 outcomes · $13K reported volume
Observed 1m ago
Recorded venue end date: Jan 1, 2027
No shared outcome identities or comparable outcome lines are available for this event. Each venue’s outcomes are listed separately.
| Outcome | Polymarket | Kalshi | Difference |
|---|---|---|---|
5 Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
6 Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
7 Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
8 Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
9 Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
10+ Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
At least 5 Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
At least 6 Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
At least 7 Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
At least 8 Not alignedNo persisted outcome identity connects these venue contracts. | — | — | |
At least 9 Not alignedNo persisted outcome identity connects these venue contracts. | — | — |
5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
Kalshi
—
6
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
Kalshi
—
7
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
Kalshi
—
8
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
Kalshi
—
9
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
Kalshi
—
10+
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
Kalshi
—
At least 5
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
—
Kalshi
At least 6
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
—
Kalshi
At least 7
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
—
Kalshi
At least 8
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
—
Kalshi
At least 9
Not alignedNo persisted outcome identity connects these venue contracts.
Polymarket
—
Kalshi
Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.