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 |
|---|---|
| 56,000 | 100% |
| 58,000 | 100% |
| 60,000 | 98% |
| 62,000 | 82% |
| 64,000 | 16% |
| 66,000 | 1% |
| 68,000 | 0% |
| 70,000 | 0% |
| 72,000 | 0% |
| 74,000 | 0% |
| 76,000 | 0% |
Market context
This market hinges on Bitcoin's spot price at a single point in time: the close of the 1-minute candle at noon ET on 16 August 2026 on Binance's BTC/USDT pair. The settlement mechanism is precise and verifiable via Binance's public candle data, eliminating ambiguity around which exchange or timeframe applies. A 100% crowd probability suggests traders expect Bitcoin to trade above the specified threshold with near-certainty at that exact moment, though the specific price level itself remains unstated in this framing.
Historical precedent shows that single-candle Bitcoin price targets two years out carry substantial uncertainty despite high current conviction. Spot prices on major exchanges like Binance exhibit volatility even during standard US trading hours; noon ET often coincides with lower-volume periods in Asian markets and pre-lunch activity in North America, creating conditions where thin order books can shift prices sharply. Previous long-dated Bitcoin price markets have seen crowd probabilities collapse when macro conditions shifted or when funding rates signalled overextension in leveraged positions.
Traders monitoring this contract should track macroeconomic calendar events in the weeks preceding August 2026, particularly US inflation data and Federal Reserve communications, which historically drive Bitcoin's directional bias. On-chain metrics worth observing include whale accumulation patterns and exchange inflows—large transfers to Binance preceding the settlement date could signal positioning ahead of the noon ET snapshot. Funding rates on perpetual futures will indicate whether leveraged longs are stretched, a condition that sometimes precedes sharp retracements during low-liquidity windows.
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 above … on August 16? on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →