Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| July 18 | 100% |
| July 20 | 100% |
| July 22 | 100% |
| July 23 | 95% |
| July 24 | 88% |
| July 25 | 74% |
| July 26 | 69% |
| July 31 | 60% |
| August 15 | 39% |
| August 31 | 36% |
Market context
Israel and Iran are in a fragile truce that has already been punctured by earlier flare-ups, so the market is really pricing the absence of any new cross-border strike through late August rather than a formal peace process. Reuters reported in June that a wider interim arrangement was meant to halt military operations and give up to 60 days for a final deal, while BBC coverage noted Israel’s government later insisted some neighbouring fronts were not covered in the same way, leaving room for ambiguity around enforcement and scope.[8][10][3]
That history makes the current **100% YES** crowd read more like a statement about the book’s current assumptions than a durable geopolitical forecast. On Polymarket, that implies a straight probability view; on Kalshi the same event is typically quoted in decimal-style pricing, so a near-certain outcome would sit very close to par, while Betfair and Smarkets would show the market via back/lay odds and charge different commission structures that can materially change the effective price for thin, short-dated political contracts. KYC and market access also differ: regulated US venues such as Kalshi are narrower by jurisdiction than globally accessible exchange-style books, which affects who can arbitrage or fade this number.
The main catalysts are diplomatic and military rather than economic: any public confirmation that ceasefire talks have stalled, any scheduled meeting on post-war arrangements, or any reported strike on Iranian or Israeli territory would be decisive for this contract. Reuters has already flagged that the memorandum’s 60-day negotiation clock and mutual-consent extension are key dependency points, so traders should watch for statements from Washington, Tehran, and the Israeli cabinet around implementation, plus any air-defence alerts or missile warnings that would signal the truce is failing.[10][8][1]
Methodology
This page compares Israel x Iran ceasefire continues through 2026? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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