Bitcoin above … on August 23?

Platform comparison

Market context

This market tracks whether Bitcoin's price on Binance's BTC/USDT pair will close above a specified threshold at precisely noon Eastern Time on 23 August 2026. The resolution hinges on a single one-minute candle—the smallest tradeable interval—captured at that exact moment. A YES share pays out if the closing price exceeds the threshold; a NO share pays if it falls at or below it. The 100% implied probability suggests traders expect Bitcoin to trade well above the threshold by that date, though the specificity of a single-minute snapshot introduces execution risk absent from broader price targets.

Bitcoin's historical volatility makes single-minute price predictions inherently uncertain, despite long-term directional confidence. During 2024–2025, intraday swings of 2–5% within a trading session were routine, particularly around US market opens and macroeconomic data releases. A noon ET reading captures early US trading hours, when volume and price discovery typically accelerate. The extreme confidence here likely reflects the threshold being set conservatively relative to current spot prices, rather than genuine certainty about that specific minute's close.

Traders should monitor Federal Reserve communications and broader macroeconomic calendars in the weeks preceding 23 August 2026, as these drive Bitcoin's directional bias. Exchange outages or unusual trading halts on Binance could affect candle formation. The settlement window's precision—requiring Binance's official 1m candle data—means traders must verify the exact timestamp and data source; discrepancies between exchanges or data providers have historically caused disputes in similar markets.

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

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 Prediction Market 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%.