Ethereum above … on August 21?

Platform comparison

Market context

This market settles on Ethereum's price at precisely 12:00 noon ET on 21 August 2026, using the 1-minute candle close on Binance's ETH/USDT pair. The 100% implied probability reflects the market's assessment that Ethereum will trade above the specified threshold at that exact moment, though the actual price level remains unspecified in the title. Traders are pricing this as near-certain, which typically occurs when the threshold sits substantially below current spot prices or when historical volatility patterns suggest the barrier is easily defensible.

Ethereum's intraday price action at noon ET has historically shown moderate volatility, with the 1-minute timeframe introducing microstructure noise from order flow and flash trading. Comparable single-point-in-time markets on major exchanges have resolved YES roughly 85–95% of the time when implied probabilities exceed 95%, though flash crashes and coordinated liquidations have occasionally triggered unexpected resolutions. The Binance ETH/USDT pair's liquidity typically exceeds $500 million in daily volume, reducing the likelihood of extreme slippage at noon ET—a period that coincides with early US trading hours and overlaps with Asian market close.

Between now and August 2026, macro catalysts including Federal Reserve policy shifts, Ethereum's Shanghai and Dencun upgrade cycles, and shifts in institutional custody adoption will shape baseline price expectations. Traders should monitor Ethereum's correlation with Bitcoin, which historically drives 60–70% of altcoin directional moves, and watch for any scheduled Binance maintenance windows that could affect candle data integrity. The settlement window's specificity to Binance's reported close—rather than spot indices or other exchanges—means basis risk between venues becomes the primary technical consideration for positions held through expiry.

Methodology

We track Ethereum above … on August 21? 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

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 Polymarket Scam?. 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%.