Market comparison

NY-21 House Election Margin of Victory

2 venues · 19 outcome rows · 0 comparable lines · event identity linked · 0 verified parity · active

Polymarket

Open venue ↗

13 outcomes · $9K reported volume

Observed 1m ago

Recorded venue end date: Nov 4, 2026

Kalshi

Open venue ↗

9 outcomes · $6K reported volume

Observed 12s ago

Recorded venue end date: Nov 3, 2027

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These venues also report end dates more than 48 hours apart; event identity does not mean the contracts close or settle together. These are stored prices; record update times do not certify live quotes. Differences exclude fees and available size.

No shared outcome identities or comparable outcome lines are available for this event. Each venue’s outcomes are listed separately.

Available outcome prices by venue for NY-21 House Election Margin of Victory
Outcome	Polymarket	Kalshi	Difference
Constantino, 1+ pts Not aligned No persisted outcome identity connects these venue contracts.	—	73.5% Bid 69.0% · Ask 78.0% Constantino, 1+ pts Open Kalshi ↗	—
Constantino, 3+ pts Not aligned No persisted outcome identity connects these venue contracts.	—	61.0% Bid 61.0% · Ask 70.0% Constantino, 3+ pts Open Kalshi ↗	—
Constantino, 6+ pts Not aligned No persisted outcome identity connects these venue contracts.	—	46.0% Bid 46.0% · Ask 54.0% Constantino, 6+ pts Open Kalshi ↗	—
Constantino, 9+ pts Not aligned No persisted outcome identity connects these venue contracts.	—	33.0% Bid 30.0% · Ask 40.0% Constantino, 9+ pts Open Kalshi ↗	—
Constantino, 12+ pts Not aligned No persisted outcome identity connects these venue contracts.	—	29.0% Bid 17.0% · Ask 29.0% Constantino, 12+ pts Open Kalshi ↗	—
Constantino, 15+ pts Not aligned No persisted outcome identity connects these venue contracts.	—	19.0% Bid 7.2% · Ask 19.0% Constantino, 15+ pts Open Kalshi ↗	—
Constantino, 18+ pts Not aligned No persisted outcome identity connects these venue contracts.	—	12.0% Bid 0.5% · Ask 12.0% Constantino, 18+ pts Open Kalshi ↗	—
Constantino, 21+ pts Not aligned No persisted outcome identity connects these venue contracts.	—	8.7% Bid 1.7% · Ask 8.7% Constantino, 21+ pts Open Kalshi ↗	—
Constantino, 24+ pts Not aligned No persisted outcome identity connects these venue contracts.	—	7.0% Bid 0.0% · Ask 7.0% Constantino, 24+ pts Open Kalshi ↗	—
Democrat 3%+ Not aligned No persisted outcome identity connects these venue contracts.	9.5% Bid 7.0% · Ask 12.0% Democrat 3%+ Open Polymarket ↗	—	—
Republican 0-3% Not aligned No persisted outcome identity connects these venue contracts.	17.5% Bid 17.0% · Ask 18.0% Democrat 0-3% Open Polymarket ↗	—	—
Republican 0-3% Not aligned No persisted outcome identity connects these venue contracts.	15.5% Bid 13.0% · Ask 18.0% Republican 0-3% Open Polymarket ↗	—	—
Republican 3-6% Not aligned No persisted outcome identity connects these venue contracts.	25.0% Bid 24.0% · Ask 26.0% Republican 3-6% Open Polymarket ↗	—	—
Republican 6-9% Not aligned No persisted outcome identity connects these venue contracts.	22.5% Bid 21.0% · Ask 24.0% Republican 6-9% Open Polymarket ↗	—	—
Republican 9-12% Not aligned No persisted outcome identity connects these venue contracts.	3.1% Bid 1.1% · Ask 5.2% Republican 9-12% Open Polymarket ↗	—	—
Republican 12-15% Not aligned No persisted outcome identity connects these venue contracts.	3.1% Bid 1.1% · Ask 5.2% Republican 12-15% Open Polymarket ↗	—	—
Republican 15-18% Not aligned No persisted outcome identity connects these venue contracts.	3.0% Bid 3.0% · Ask 3.1% Republican 15-18% Open Polymarket ↗	—	—
Republican 18-21% Not aligned No persisted outcome identity connects these venue contracts.	4.2% Bid 3.4% · Ask 5.0% Republican 18-21% Open Polymarket ↗	—	—
Republican 21%+ Not aligned No persisted outcome identity connects these venue contracts.	7.8% Bid 5.4% · Ask 10.1% Republican 21%+ Open Polymarket ↗	—	—

Constantino, 1+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

73.5%

Bid 69.0% · Ask 78.0%

Constantino, 1+ pts

Open Kalshi ↗

Constantino, 3+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

61.0%

Bid 61.0% · Ask 70.0%

Constantino, 3+ pts

Open Kalshi ↗

Constantino, 6+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

46.0%

Bid 46.0% · Ask 54.0%

Constantino, 6+ pts

Open Kalshi ↗

Constantino, 9+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

33.0%

Bid 30.0% · Ask 40.0%

Constantino, 9+ pts

Open Kalshi ↗

Constantino, 12+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

29.0%

Bid 17.0% · Ask 29.0%

Constantino, 12+ pts

Open Kalshi ↗

Constantino, 15+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

19.0%

Bid 7.2% · Ask 19.0%

Constantino, 15+ pts

Open Kalshi ↗

Constantino, 18+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

12.0%

Bid 0.5% · Ask 12.0%

Constantino, 18+ pts

Open Kalshi ↗

Constantino, 21+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

8.7%

Bid 1.7% · Ask 8.7%

Constantino, 21+ pts

Open Kalshi ↗

Constantino, 24+ pts

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

7.0%

Bid 0.0% · Ask 7.0%

Constantino, 24+ pts

Open Kalshi ↗

Democrat 3%+

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

9.5%

Bid 7.0% · Ask 12.0%

Democrat 3%+

Open Polymarket ↗

Kalshi

—

Republican 0-3%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

17.5%

Bid 17.0% · Ask 18.0%

Democrat 0-3%

Open Polymarket ↗

Kalshi

—

Republican 0-3%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

15.5%

Bid 13.0% · Ask 18.0%

Republican 0-3%

Open Polymarket ↗

Kalshi

—

Republican 3-6%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

25.0%

Bid 24.0% · Ask 26.0%

Republican 3-6%

Open Polymarket ↗

Kalshi

—

Republican 6-9%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

22.5%

Bid 21.0% · Ask 24.0%

Republican 6-9%

Open Polymarket ↗

Kalshi

—

Republican 9-12%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

3.1%

Bid 1.1% · Ask 5.2%

Republican 9-12%

Open Polymarket ↗

Kalshi

—

Republican 12-15%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

3.1%

Bid 1.1% · Ask 5.2%

Republican 12-15%

Open Polymarket ↗

Kalshi

—

Republican 15-18%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

3.0%

Bid 3.0% · Ask 3.1%

Republican 15-18%

Open Polymarket ↗

Kalshi

—

Republican 18-21%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

4.2%

Bid 3.4% · Ask 5.0%

Republican 18-21%

Open Polymarket ↗

Kalshi

—

Republican 21%+

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

7.8%

Bid 5.4% · Ask 10.1%

Republican 21%+

Open Polymarket ↗

Kalshi

—

Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.

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