Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| July 31 | 100% |
| July 15 | 100% |
| June 15 | 0% |
| June 22 | 0% |
| June 30 | 0% |
| July 7 | 0% |
Market context
The Trump administration has already declassified multiple batches of previously secret files on unidentified anomalous phenomena, with the fourth tranche released on 10 July 2026 under the PURSUE system, meaning the event this market bets on has already occurred [1][2]. The settlement condition requires declassification of files “which were not previously publicly available” by 11:59 PM ET on the specified date; since new, never-before-seen UAP records were published on 8 May, 22 May, and 10 July 2026, the YES outcome is factually moot [2][3].
Historically, presidential UAP disclosures have followed rolling schedules rather than single deadlines, as seen with the May 2026 launch of PURSUE and subsequent tranches containing over 380 total documents, including videos and audio requested by lawmakers [3]. Comparable cases, such as the 2021 ODNI UAP report, also unfolded incrementally, reinforcing that a single “by date” trigger is an artificial constraint when the administration has already committed to continuous disclosure [3].
Traders should monitor the Department of War’s rolling release schedule on WAR.GOV/UFO for any claim of “new” files post-10 July, though current announcements confirm the next tranche is already in preparation [1][5]. With the crowd-implied probability at 0% YES and the event already fulfilled, the divergence between prediction-market pricing and sportsbook-style odds on similar political-event contracts is stark: no meaningful line exists elsewhere because the factual precondition is satisfied [2][7].
Methodology
We track Trump declassifies new UFO files by 2026? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
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
- 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 PolyGram. 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 fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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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