Bitcoin Up or Down - August 20, 7AM ET

Platform comparison

Market context

This market settles on whether Bitcoin closes higher than or equal to its opening price during the one-hour candle beginning 20 August 2026 at 7AM Eastern Time on Binance's BTC/USDT pair. The 0% YES probability reflects the market's current assessment that this particular hourly candle will close lower than its open—an outcome that occurs roughly half the time across any given trading day, yet here the crowd has priced it as near-certain to resolve DOWN. This disconnect suggests either extreme bearish sentiment for that specific window or minimal liquidity driving the contract toward extremes.

Hourly Bitcoin candles rarely exhibit directional bias; historical data shows roughly 48–52% close above open across extended periods, with no meaningful pattern favouring either direction at any particular hour of the day. The 0% pricing here sits far outside normal distribution bounds, indicating either a genuine conviction about market conditions on that date or a thin order book where small trades move prices dramatically. Comparable one-hour contracts on Polymarket typically trade between 40–60% YES, making this extreme valuation a statistical outlier worth examining before committing capital.

Traders monitoring this contract should track Bitcoin's volatility regime in the weeks preceding 20 August 2026, as sustained trending markets can skew hourly close probabilities. Macroeconomic data releases, Federal Reserve communications, or major cryptocurrency exchange announcements could shift market structure. The settlement depends entirely on Binance's BTC/USDT candle data; traders should verify the exchange's historical uptime and data reliability, particularly around the 7AM ET window when US market participants are entering their trading day.

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 Scam?, 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

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.

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%.