What price will Bitcoin hit on August 20?

Platform comparison

Market context

Bitcoin's price action on 20 August 2026 will determine settlement of this binary contract. The market is pricing a 2% probability that BTC will reach a specific price threshold on that date—a low-probability tail event that typically reflects either an extreme volatility scenario or a price level far removed from current spot. For traders building conditional order logic or backtesting volatility strategies, this market serves as a volatility gauge: the 2% odds suggest the threshold sits well outside the 95th percentile of expected daily moves based on recent historical ranges.

Historical precedent shows Bitcoin's largest single-day moves cluster between 10–15% in bull or bear regimes, with moves exceeding 20% occurring roughly once per market cycle. The 2% probability aligns with moves that would require either a major liquidation cascade, a regulatory shock, or a black-swan macroeconomic event. Traders using Monte Carlo simulations or GARCH volatility models would calibrate their conditional orders around the implied volatility surface; a 2% tail probability typically maps to a move 2.3–2.5 standard deviations from the mean, depending on the specific price level being tested.

Catalysts to monitor include Federal Reserve policy announcements (which historically trigger 5–8% swings), spot Bitcoin ETF flows, and geopolitical developments affecting risk sentiment. Programmatic traders should integrate real-time volatility feeds and set alerts on implied volatility spikes; the settlement window extends into August 2026, giving sufficient lead time for bot-based position management and rebalancing around major economic data releases or central bank communications.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Bot UK, which mirrors the Polymarket order book directly.

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

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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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%.