Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
38% | 62% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
38% | 62% | 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 |
|---|---|
| ↑ 66,000 | 38% |
| ↓ 62,000 | 38% |
| ↓ 60,000 | 9% |
| ↑ 68,000 | 8% |
| ↓ 58,000 | 3% |
| ↑ 70,000 | 2% |
| ↑ 74,000 | 1% |
| ↑ 72,000 | 1% |
| ↓ 56,000 | 1% |
| ↓ 54,000 | 1% |
| ↑ 78,000 | 0% |
| ↑ 76,000 | 0% |
| ↓ 52,000 | 0% |
| ↓ 50,000 | 0% |
Market context
Bitcoin's price movement during the week of 10–16 August 2026 will determine whether the market resolves YES. The settlement window closes on 17 August, giving traders a narrow observation period. This market requires monitoring intraday volatility, exchange order flow data, and spot-price feeds across major venues (Coinbase, Kraken, Bitstamp) to establish whether any price level is touched during that specific seven-day span. For algorithmic traders, the utility lies in conditional order placement: setting alerts on price-action thresholds and automating execution if Bitcoin breaches predetermined levels during the window.
Historical precedent suggests Bitcoin's weekly price ranges typically span 3–8% under normal market conditions, though geopolitical shocks or macroeconomic data releases can widen that band significantly. The current 0% crowd probability indicates either exceptionally high price targets priced into the question or market consensus that the specified range is unrealistic given Bitcoin's typical volatility profile. Comparing to August 2023 and August 2024, Bitcoin's weekly swings averaged around $2,000–$4,000 in absolute terms, providing a baseline for evaluating whether the market's strike price sits far outside historical norms.
Traders should monitor US inflation data (typically released mid-month), Federal Reserve communications, and spot-ETF inflows—all scheduled catalysts that historically drive Bitcoin repricing. Custody announcements from major institutions and regulatory filings also move markets within tight windows. For programmatic approaches, integrating real-time price feeds with conditional logic allows traders to capture execution opportunities without manual monitoring, though slippage on large positions remains a practical constraint during low-liquidity periods.
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
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
- 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.
- 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 What price will Bitcoin hit August 10-16? on Polymarket Review UK
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