Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
49% | 51% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
49% | 51% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ↑ 66,000 | 49% |
| ↓ 62,000 | 27% |
| ↑ 68,000 | 10% |
| ↓ 60,000 | 9% |
| ↑ 70,000 | 3% |
| ↑ 74,000 | 1% |
| ↑ 72,000 | 1% |
| ↓ 58,000 | 1% |
| ↓ 56,000 | 1% |
| ↓ 54,000 | 1% |
| ↑ 78,000 | 0% |
| ↑ 76,000 | 0% |
| ↓ 52,000 | 0% |
| ↓ 50,000 | 0% |
Market context
Bitcoin's price action during the week of 17–23 August 2026 will determine whether the market touches a specific level within that seven-day window. The crowd currently assigns zero probability to a YES outcome, suggesting either extreme confidence in a narrow price band or genuine uncertainty about what threshold the market is pricing. With nearly two years until settlement, the baseline assumption is that Bitcoin trades within established ranges absent major structural shifts.
Historical precedent shows Bitcoin's weekly price swings have narrowed during mature bull phases and widened sharply around regulatory announcements or macroeconomic shocks. The 2021–2022 cycle saw weekly moves of 15–20% during volatility clusters, whilst calmer periods produced 5–8% ranges. The zero probability reading implies the crowd expects August 2026 conditions to resemble a low-volatility regime, though this assumption rests on stable geopolitical and monetary conditions holding through mid-2026.
Traders should monitor Federal Reserve policy signals and inflation data releases in the months leading to the settlement window, as these typically drive Bitcoin's directional bias. Any major cryptocurrency regulatory announcements—particularly from the SEC or Treasury—could alter volatility expectations substantially. Institutional adoption milestones and spot ETF flows remain secondary catalysts. The current pricing leaves room for contrarian positioning if macro conditions shift materially or if on-chain activity signals unusual accumulation ahead of August.
Methodology
This page reviews What price will Bitcoin hit August 17-23? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Who Will Win, which mirrors the Polymarket order book at 0% fees.
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
- 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 Who Will Win. 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%.
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