Bitcoin Up or Down - August 20, 7AM ET

Platform comparison

Market context

Bitcoin's intraday volatility over the past 48 hours has centred on macroeconomic positioning ahead of the US Federal Reserve's policy decision scheduled for late July. The BTC/USDT pair on Binance has traded within a 2,400 USD range, with price action reflecting positioning ahead of potential rate guidance shifts. The August 20 settlement window captures a single hourly candle during Asian trading hours, a period historically characterised by lower volume and tighter spreads on the spot pair.

The 0% crowd probability reflects extreme bearish conviction on upside movement within that specific hour. Historical precedent suggests such extreme probabilities on intraday directional bets often emerge when technical resistance aligns with broader sentiment. Single-hour candle markets on major pairs typically see resolution split roughly evenly when volatility remains moderate; asymmetric probabilities of this magnitude typically indicate either technical rejection at a key level or anticipation of a scheduled event occurring during the settlement window.

Traders should monitor any scheduled cryptocurrency exchange maintenance windows on Binance during the settlement period, as technical issues can distort price feeds. Broader catalysts include any overnight announcements from major asset managers regarding Bitcoin holdings or regulatory developments from jurisdictions with significant trading volume. The Asian session on August 20 will also reflect price discovery following any US market close developments on August 19, which could establish directional bias heading into the settlement hour.

Methodology

We track Bitcoin Up or Down - August 20, 7AM ET across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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 Prediction Today. 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%.