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How many House seats will Democrats win in Pennsylvania? — Will Democrats win exactly 9 seats in the 2026 U.S. House of Representatives elections in Pennsylvania?

Heads up: Kalshi and Polymarket resolve this market 364 days apart — the price difference may reflect different time horizons rather than a genuine arbitrage opportunity.
23.0%volume-weighted implied probability
YES price range2.5pp dislocation
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Kalshi Polymarket
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Best price
Kalshi
21¢
bid 20¢ · ask 21¢
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Polymarket
23¢
bid 22¢ · ask 24¢
24h vol $15
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Mapping notes

Event pair: 'How many House seats will the Democrats win in Pennsylvania?' ↔ 'How many House seats will Democrats win in Pennsylvania?' (score 0.75, outcome match 0.60, llm=same).

Kalshi ticker
KXHOUSEWINSTATE-PAD-E9
Resolves 11/3/2027
Polymarket condition
0x61f56bc038a9a977…
Resolves 11/4/2026
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