Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
80% | 20% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
80% | 20% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 64,000-66,000 | 80% |
| 62,000-64,000 | 20% |
| 66,000-68,000 | 1% |
| <54,000 | 0% |
| 54,000-56,000 | 0% |
| 56,000-58,000 | 0% |
| 58,000-60,000 | 0% |
| 60,000-62,000 | 0% |
| 68,000-70,000 | 0% |
| 70,000-72,000 | 0% |
| >72,000 | 0% |
Market context
This market resolves on the Binance BTC/USDT spot price at the 12:00 ET noon candle close on 19 August 2026. The settlement window extends to mid-August 2026, roughly 20 months from present, making this a medium-term directional bet on Bitcoin's valuation during a period that may coincide with post-halving cycle dynamics and potential macroeconomic shifts. Resolution depends on the precise 1-minute candle close rather than daily aggregates, introducing minimal execution risk provided Binance maintains normal trading operations.
Historical Bitcoin price ranges suggest substantial volatility over comparable 20-month windows. Between August 2023 and April 2025, BTC moved from roughly $26,000 to above $60,000, demonstrating how macro conditions, Federal Reserve policy, and institutional adoption cycles can drive multi-year directional moves. The 0% crowd probability assigned to this market likely reflects uncertainty about which price bracket will be hit rather than conviction that Bitcoin will be unavailable or untradeable on that date. Comparable long-dated Bitcoin price markets typically show meaningful probability mass distributed across multiple brackets, suggesting the current reading may reflect low liquidity or an unusually wide bracket structure.
Traders should monitor on-chain whale accumulation patterns, spot exchange inflows and outflows tracked by services like Glassnode, and funding rate behaviour on major derivatives exchanges as indicators of positioning ahead of August 2026. Regulatory developments affecting USDC settlement mechanisms or Binance's operational status in key jurisdictions represent tail risks. Correlation with equity markets and Treasury yield movements will likely remain material, particularly if macroeconomic conditions shift materially from current expectations.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- 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 price on August 19? on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →