Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Legal UK Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Legal UK → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Legal UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Legal UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Legal UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Legal UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket Legal UK.
Active sub-markets
Market context
The Trump administration's approach to unclassified material on unexplained aerial phenomena and extraterrestrial claims remains a focal point for observers tracking executive transparency policy. During his first term (2017–2021), Trump signed the 2017 Intelligence Authorization Act, which mandated a report on unidentified aerial phenomena; however, substantive new declassifications on extraterrestrial life specifically did not materialise. The 2023 Congressional hearings on UAP, featuring testimony from former military officials, occurred under the Biden administration and generated public pressure for disclosure, yet no formal executive declassification orders targeting extraterrestrial-specific files followed. The current settlement window (through June 2026) covers Trump's second term, during which executive authority over classification decisions rests with the President and delegated agencies including the Department of Defence.
Historical precedent suggests caution in assessing this market's 0% probability. The Pentagon's 2021 UAP report, whilst unclassified, contained minimal substantive revelations about extraterrestrial origins. Trump's prior statements on UFOs have been non-committal; he has neither championed nor obstructed disclosure efforts. Key catalysts include Congressional pressure (the 2023 UAP Disclosure Act remains partially unfulfilled), statements from the Director of National Intelligence, and any Defence Department announcements regarding classification reviews. The Federal Register publishes declassification notices; traders should monitor these alongside statements from the National Security Advisor and Pentagon spokesperson. Timing pressures increase as the June 2026 deadline approaches, though no scheduled declassification review specific to extraterrestrial files has been announced as of early 2025.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- On Polymarket Legal UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 it cost to trade on Polymarket Legal UK?
- Zero. Polymarket Legal UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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?
- Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Legal UK triggers a quick verification flow that finishes in minutes.
Trade Trump declassifies new UFO files by 2026? on Polymarket Legal UK
Live order book, 0% fees, USDC settlement in seconds.
Trade on Polymarket Legal UK →