Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
6% | 94% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
6% | 94% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| August 31 | 6% |
| May 8 | 0% |
| May 31 | 0% |
| June 30 | 0% |
| May 24 | 0% |
| June 15 | 0% |
| June 8 | 0% |
| June 9 | 0% |
| June 10 | 0% |
| June 11 | 0% |
| June 12 | 0% |
| June 13 | 0% |
| June 14 | 0% |
| July 15 | 0% |
| July 31 | 0% |
| July 7 | 0% |
| July 24 | 0% |
| August 15 | 0% |
Market context
Polymarket is pricing this contract at **0% YES**, so the market is currently treating a fresh, qualifying Israeli airspace shutdown before 31 May 2026 as very unlikely. On Polymarket, holders of USDC on Polygon trade conditional tokens that settle on the contract rule, so the key question is not whether tension exists, but whether authorities impose a broad civilian aviation closure that matches the market’s definition.
That low price sits against a recent history of abrupt, security-driven shutdowns. Israel has closed its airspace “until further notice” during military escalations with Iran, grounding all civilian flights and later reopening only gradually once security services judged conditions acceptable.[1][2][10][16] Similar closures were reported in June 2025 and again during the February 2026 fighting, when commercial traffic was suspended across Israeli airspace and Ben Gurion Airport halted arrivals and departures.[4][9][14] For traders, the historical pattern matters because these events can happen quickly, but they have so far been temporary rather than prolonged.[1][2][6]
The practical catalysts are official aviation and security announcements, not rumours. Watch statements from the Transport Ministry, the Civil Aviation Authority, the Israel Airports Authority, and Home Front Command, plus any notice of “until further notice” closures, reduced take-offs and landings, or instructions to avoid airports.[1][5][10][12][15] A recent EASA Information Note still flags the Tel Aviv FIR as a risk area for operators into 31 August 2026, which supports ongoing caution even when the airspace is technically open.[6] For this market, the decisive trigger is a broad, general suspension of commercial flights across Israeli civilian airspace, not a temporary route adjustment or partial capacity cut.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- 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's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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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