Cross-Venue
Kalshi vs Polymarket
Kalshi and Polymarket list overlapping real-world events, but related listings are not automatically the same contract. W.E.T. shows each venue’s listing separately and withholds a numerical gap until outcome, rule, void, and settlement equivalence are confirmed.
W.E.T. tracks both venues side by side without treating title similarity as contract identity. We take no bets and hold no funds; implied probability is a market price, not advice. See the methodology.
Numerical comparison withheld
Related listings stay separate
W.E.T. has retired the old title- and competitor-matched gap board. A future row will appear only after the canonical event graph records an exact same-outcome match and its evidence. Until then, use each venue-attributed quote as evidence about its own contract and verify both rulebooks.
Related
Current cross-venue state
Withheld
Numerical divergence
Exact
Required match state
How the two venues differ
| Kalshi | Polymarket | |
|---|---|---|
| Structure | CFTC-regulated US exchange (a designated contract market) | Crypto-native, decentralized markets on Polygon |
| Funding | US dollars — bank transfer or debit | USDC stablecoin via a crypto wallet |
| US access | Open to eligible US persons | Historically geofenced for US persons — check current eligibility |
| Market focus | Economics, politics, weather, and sports | Politics, crypto, culture, and sports |
| Settlement | Exchange rules against official sources | On-chain resolution via a decentralized oracle |
| Price = probability | Cents per contract read as implied % | Cents per share read as implied % |
Venue features and eligibility change — confirm current terms on each venue directly. W.E.T. does not route orders and takes no position on which venue you should use.
Why identity comes first
A venue’s own site can only show its own book. W.E.T. is neutral — we map listings to real-world events, preserve each venue’s rules and provenance, and compare prices only after exact contract identity is established. See how the identity and comparison gates work in the methodology.
Answers
Kalshi vs Polymarket — FAQ
What is the difference between Kalshi and Polymarket?
Kalshi is a CFTC-regulated US exchange funded in dollars; Polymarket is a crypto-native, decentralized market funded in USDC and settled on-chain. Their event coverage can overlap, but category availability and liquidity vary by listing and time. Both price contracts in cents that can be read as implied probability.
Do Kalshi and Polymarket show the same odds?
Related listings can show different prices, but a numerical comparison is valid only when the contracts settle the same outcome under equivalent rules, void terms, and resolution sources. W.E.T. currently shows venue-attributed listings separately and withholds a gap until the canonical graph confirms that identity.
Why do the odds diverge between the two venues?
Separate liquidity, participants, funding systems, fees, and market rules can all produce different prices. Different wording or settlement terms can also mean the listings are not the same contract at all, which is why W.E.T. does not publish a numerical divergence without confirmed identity.
Which is better, Kalshi or Polymarket?
Neither is universally "better" — access, rules, funding, fees, and available listings differ. W.E.T. is neutral: we organize venue-attributed listings when available, take no bets, and hold no funds.
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W.E.T. is an information and data service — not a gambling operator. We take no bets, hold no funds, and route no orders. This comparison page contains no affiliate or referral links. Elsewhere, W.E.T. may earn a commission only from links identified as sponsored; direct venue-source links are not sponsored. This never influences our odds reporting. Implied probabilities are market prices, not forecasts or advice. Prediction markets may be restricted in your jurisdiction — check local law. 18+.