Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
30% | 70% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
30% | 70% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| December 31 | 30% |
| September 30 | 14% |
| August 31 | 7% |
| June 30 | 0% |
| July 15 | 0% |
| July 31 | 0% |
| July 21 | 0% |
| July 24 | 0% |
| August 15 | 0% |
| July 27 | 0% |
Market context
Iranian airspace has only become a full closure candidate when military risk spikes, because a general shutdown of the Tehran FIR disrupts east–west routing and is usually tied to acute security fears rather than routine aviation issues. Recent precedent matters here: Reuters reported a near-five-hour closure in January after fears of military action, and a broader round of flight suspensions followed the February strikes that left airlines expecting closures to last “for quite some time”.[10][11]
For a programme-driven trader, the key is to monitor *state-readable triggers*: NOTAMs from Iran’s Civil Aviation Organisation, EASA operator bulletins, and the actual routing behaviour of major carriers. Safe Airspace says Iran remains only partially open, with very few international operators using the Tehran FIR, while EASA’s current guidance still says not to operate in Iranian airspace at all altitudes.[16][4] That makes the market sensitive to any abrupt shift from advisory avoidance to a general, formal closure.
The main catalysts are renewed strikes, air-defence incidents, or a wider regional escalation that forces regulators to cancel overflights rather than merely reroute them. Reuters also reported in January that airlines were already canceling, rerouting, or delaying flights after warnings over possible military action, which is the sort of dependency chain that matters for conditional orders and automated alerts.[10] With the current crowd price at 0% YES, the market is effectively saying there is no live evidence of an imminent nationwide shutdown.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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