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Polymarket vs. Kalshi

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See where the two biggest prediction markets disagree. Pick any two markets, or start from the biggest gaps below: prices, volume, history and the resolution rules, side by side.

9 point gap — Polymarket says 9%, Kalshi says 18%.
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Polymarket Entertainment

Josh O'Connor announced as next James Bond?

9% ▼ 1.5pt

Vol $6.4K today · $50.8K total

Change ×
Kalshi Entertainment

Will Dev Patel perform as Q in the next James Bond film?

18% ▲ +2.5pt

Vol $47 today · $134 total

Kalshi is 9 points higher than Polymarket (18% vs 9%). Polymarket trades about 134.5× more volume today, so its price has more money behind it. They resolve on different dates (Jan 1 vs Jan 1), so they may not be exactly the same bet.

PolymarketKalshi
5%10%15%20%25%Oct 9Nov 2

History starts when we first saw each market, so a newly added market has a short line.

PolymarketKalshi
Probability (Yes)9%18%
Change (24h)-1.5 pt+2.5 pt
Volume today$6.4K$47
Total volume$50.8K$134
Liquidity$8.7K—
Open interest—$98
Resolves59d51mo
Tracked for33 hours25 days
Resolution rules: read both before trusting a gap

Polymarket

This market will resolve to “Yes” if the listed actor is officially announced as the next James Bond actor by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. This market will resolve based on the first official announcement of who will be the next James Bond, regardless of any changes made thereafter. If no actor is announced as the next Bond within the timeframe, this market will resolve to "No Bond chosen". The primary resolution source for this market will be official information from Amazon MGM Studios. However, a consensus of credible reporting may also be used.

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Kalshi

If Dev Patel performs/ is announced as Q in the next James Bond film, then the market resolves to Yes.

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Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.