What price will Bitcoin hit on August 19?

Platform comparison

Market context

Bitcoin's price action on 19 August 2026 will be determined by spot and futures trading across global exchanges, with settlement tied to closing levels on that specific date. The 0% crowd probability reflects either extreme confidence that no particular price target will be hit, or sparse liquidity in this contract relative to broader Bitcoin price prediction markets. Comparison across platforms shows prediction markets typically price Bitcoin price-level contracts with wider spreads than perpetual futures, where leverage and funding rates create tighter intraday bands. Sportsbook-style crypto odds platforms have largely withdrawn from price-level betting, leaving prediction markets as the primary venue for such contracts.

Historical precedent suggests single-day price targets more than eighteen months forward carry substantial uncertainty. Bitcoin's realised volatility has ranged from 40% to 120% annualised over recent cycles; a move of 5–10% on any given day remains well within historical norms, yet predicting which specific level will be touched requires both directional conviction and precise timing. The settlement window's placement at 04:00 UTC on 20 August captures the close of the previous calendar day across most major exchanges, eliminating ambiguity around which trading session counts.

Traders should monitor macroeconomic calendar events in the weeks preceding August 2026—particularly US inflation data, Federal Reserve communications, and any regulatory announcements affecting spot or derivatives trading. Bitcoin's correlation with equity risk sentiment and real yields has remained material; shifts in those inputs typically drive larger moves than crypto-specific news alone.

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

What are the best prediction markets for UK traders in 2026?

For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.