Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
97% | 3% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
97% | 3% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| August 22 | 97% |
| August 25 | 93% |
| August 31 | 83% |
| September 15 | 71% |
| September 30 | 56% |
Market context
The ceasefire question hinges on whether Washington keeps its current pause on direct strikes or resumes air or missile attacks before 30 September. A provisional US-Iran ceasefire was announced in April, later extended in June, but reporting in July said the ceasefire was being described as over even as back-channel talks continued, leaving the market to price continuity rather than a fresh escalation. [1][3][6]
That 96% yes level fits a market that is leaning heavily on the fact that both sides have repeatedly chosen temporary restraint after earlier exchanges, with Reuters and AP both describing extensions and a move towards a longer memorandum rather than an immediate return to open conflict. Comparable ceasefire markets in the region tend to trade near certainty until a clear deadline, then reprice fast if the diplomatic track loses momentum or if one side signals that the pause has expired. [7][9][13]
The main catalyst to watch is not a scheduled battlefield event but any formal announcement from Washington or Tehran on whether the truce is still operative, plus any reported talks on the wider memorandum, nuclear limits, or sanctions relief. Reuters reported that the ceasefire extension and related terms were still subject to approval and final signing, so traders are likely leaning on the next public declaration, mediator statement, or sudden change in US posture rather than on a fixed convention or debate calendar. [10][12][14]
Methodology
This page tracks US-Iran ceasefire continues through 2026? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.
Resolution & payout
For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.
UK Frequently Asked Questions
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- Can prediction markets influence election outcomes?
- Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.
- Which platform has the deepest political liquidity?
- Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.
- Why do Polymarket and Kalshi differ on elections?
- Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.
- Are UK election prediction markets available from the UK?
- Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.
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