Bitcoin Up or Down - August 17, 1PM ET

Platform comparison

Market context

This market settles on whether Bitcoin closes at or above its opening price during the one-hour candle beginning 17 August 2026 at 1PM ET on Binance's BTC/USDT pair. The resolution hinges on Binance's published open and close values for that specific hourly candle, with the settlement window extending to 6PM ET to allow sufficient time for candle finalisation across global exchanges.

A 100% crowd probability on a single hourly directional move reflects either extreme conviction or thin liquidity in the market's current state. Historical hourly Bitcoin candles show closure above open roughly 50–52% of the time under normal volatility conditions; sustained probabilities above 95% typically emerge only when major macroeconomic announcements, Federal Reserve decisions, or significant exchange inflows create directional pressure. For programmatic traders, this probability level warrants scrutiny—conditional orders tied to pre-market volatility indices or order-book depth on Binance itself would provide better signal quality than relying on crowd sentiment alone.

Traders monitoring this candle should track any scheduled economic data releases or cryptocurrency-specific events in the hours preceding 1PM ET on that date. Recent precedent shows that US inflation prints, employment figures, or statements from major institutional holders can shift intraday volatility substantially. Automated trading systems should also monitor Binance's own operational status and any network congestion that might delay candle closure; API latency or exchange maintenance windows could affect both the underlying price action and the timeliness of resolution data retrieval.

Methodology

We track Bitcoin Up or Down - August 17, 1PM 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

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%.