Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 54,000 | 100% |
| 56,000 | 100% |
| 58,000 | 99% |
| 60,000 | 99% |
| 62,000 | 95% |
| 64,000 | 63% |
| 66,000 | 10% |
| 68,000 | 1% |
| 70,000 | 1% |
| 72,000 | 0% |
| 74,000 | 0% |
Market context
Bitcoin's price at noon ET on 20 August 2026 will be recorded from the Binance BTC/USDT 1-minute candle close. The market settles against a specific price threshold; the crowd is currently pricing this as near-certain. For traders using conditional order infrastructure or algorithmic execution, this market functions as a discrete price-level checkpoint—useful for backtesting volatility assumptions around a fixed timestamp or for validating exchange data feeds against historical candle sequences.
Historical Bitcoin price action shows substantial intraday variance, particularly around institutional trading hours and US market opens. A 100% implied probability on a specific price level two years forward is unusual; it typically reflects either an extremely high threshold (well above current spot), an extremely low one, or sparse liquidity in the order book. Comparable markets on fixed timestamps have resolved based on genuine exchange data without systematic bias, though slippage between exchanges and latency in candle finalisation have occasionally created edge cases. Traders should verify the exact threshold against current spot to calibrate whether the crowd is pricing a trivial or aggressive target.
Catalysts between now and August 2026 include Federal Reserve policy cycles, Bitcoin's halving schedule (next event April 2024), and institutional adoption milestones. Recent volatility has tracked macroeconomic data releases and geopolitical risk reassessments. For programmatic traders, the key dependency is Binance's candle data availability and timestamp accuracy; any exchange maintenance or API latency during the noon ET window could affect settlement verification, though Binance's historical uptime suggests this is a low-probability edge case.
Methodology
We track Bitcoin above … on August 20? 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.
UK Frequently Asked Questions
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade Bitcoin above … on August 20? on Polymarket Review UK
Live order book, 0% fees, USDC settlement in seconds.
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