Bitcoin above … on August 12?

Platform comparison

Market context

Bitcoin's price at noon ET on 12 August 2026 will be recorded from the Binance BTC/USDT 1-minute candle close. This market settles against a single data point: the final close price of that specific candle, with no averaging or alternative exchange fallback. For traders building conditional order logic or backtesting execution strategies, the precision matters—Binance's candle timestamps operate on UTC, requiring explicit timezone conversion to ET to identify the correct candle for settlement.

Historical Bitcoin intraday volatility suggests that 1-minute candle closes at major exchanges typically move within 1–3% of the preceding 5-minute average, though flash moves and order book imbalances can produce sharper swings. The 100% crowd probability here reflects either an extremely wide price threshold in the title or a near-certainty consensus on Bitcoin's direction by that date. Comparable single-candle resolution markets on major exchanges have shown that liquidity conditions and time-of-day effects (noon ET falls during US morning trading) influence execution slippage more than longer-term directional conviction.

Traders monitoring this market should track scheduled macroeconomic releases on 12 August 2026 and any major Bitcoin network events or regulatory announcements in the preceding weeks. Binance's operational status and any API latency during the settlement window would affect data availability for automated verification. For programmatic settlement checking, querying Binance's REST API with the exact timestamp and 1m interval parameter is more reliable than manual candle inspection, particularly if system load spikes during volatile market conditions.

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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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%.