Bitcoin above … on August 13?

Platform comparison

Market context

This market resolves based on Bitcoin's closing price on the Binance BTC/USDT pair at precisely 12:00 noon ET on 13 August 2026, using the 1-minute candle data available through Binance's charting interface. The settlement hinges on a single data point: the final tick of that specific candle, making this a narrow technical event rather than a broader price movement prediction. For traders building conditional order logic or backtesting bot strategies, this specificity means the resolution is deterministic and auditable against Binance's public API, which surfaces identical candle data to the web interface.

The 100% implied probability reflects the mathematical certainty that any non-zero price threshold will be breached given sufficient time and Bitcoin's historical volatility. Comparable single-candle markets at fixed future dates have historically shown similar clustering at extremes when thresholds are set conservatively. However, the actual utility of this market lies in its programmability: traders can construct automated alerts keyed to Binance's REST or WebSocket feeds, triggering position adjustments or hedges as the settlement date approaches. The noon ET timestamp matters operationally—it falls during peak US market hours, when BTC/USDT volume on Binance typically peaks, reducing the risk of illiquid pricing anomalies that could distort the closing tick.

Catalysts between now and August 2026 remain diffuse, though Federal Reserve policy announcements and macroeconomic data releases historically correlate with intraday Bitcoin volatility. Traders should monitor scheduled FOMC meetings and US employment reports, as these often drive sharp moves in the hours surrounding noon ET. For those integrating this market into larger trading systems, the key operational consideration is ensuring your data ingestion pipeline handles Binance's candle timestamps correctly—timezone misalignment or off-by-one errors in candle selection would invalidate otherwise sound strategies.

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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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%.