Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| 62,000-64,000 | 100% |
| <56,000 | 0% |
| 56,000-58,000 | 0% |
| 58,000-60,000 | 0% |
| 60,000-62,000 | 0% |
| 64,000-66,000 | 0% |
| 66,000-68,000 | 0% |
| 68,000-70,000 | 0% |
| 70,000-72,000 | 0% |
| 72,000-74,000 | 0% |
| >74,000 | 0% |
Market context
Bitcoin's spot price at noon ET on 13 August 2026 will determine this market's outcome, measured against Binance's BTC/USDT 1-minute candle close. The 0% crowd probability reflects genuine uncertainty about the settlement window's distance—nearly two years forward—making price prediction at a specific minute on a specific date an exercise in noise rather than signal. Historical Bitcoin volatility suggests intraday moves of 2–5% are routine, whilst longer-term directional bias depends on macroeconomic conditions, regulatory shifts, and on-chain capital flows that remain unknowable at this remove.
Comparable prediction markets on Bitcoin spot prices at fixed future dates have typically seen crowd probabilities cluster around narrow price bands only when settlement approaches within weeks. The current 0% reading signals that no single price bracket has attracted meaningful conviction among traders, a rational outcome given the 24-month forecast horizon and Bitcoin's history of regime shifts driven by halving cycles, institutional adoption waves, and geopolitical shocks. Spot funding rates on Binance and whale accumulation patterns tracked by on-chain analytics firms like Glassnode may hint at directional bias closer to the settlement date, but present-day signals carry minimal predictive weight.
Traders monitoring this contract should watch for major catalyst clusters: US monetary policy shifts affecting real rates, potential Bitcoin spot ETF flows, regulatory announcements from major jurisdictions, and macroeconomic recession indicators that historically correlate with cryptocurrency repricing. The August 2026 date falls roughly 18 months after the next Bitcoin halving, a period when post-halving supply dynamics typically stabilise. Meaningful probability shifts will likely emerge only in the final 60–90 days before settlement, when intraday volatility patterns become observable and macro conditions crystallise.
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
- 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.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- 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 13? on BTC Prediction
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