Ethereum above … on August 13?

Platform comparison

Market context

This market resolves based on the closing price of Ethereum against USDT on Binance's 1-minute candle at noon Eastern Time on 13 August 2026. The settlement hinges on a single data point: the final tick of that specific 60-second window, captured directly from Binance's API feed. For traders building conditional order logic or backtesting bots, this represents a narrow, deterministic event—no ambiguity around which exchange, pair, or timeframe applies.

The 100% implied probability reflects the structural certainty of the event itself rather than confidence in any particular price level. Historical precedent shows that single-candle resolution markets on major pairs rarely trade below 95% when the underlying threshold is set within typical daily volatility ranges. Comparable Ethereum noon-candle markets from 2024–2025 demonstrate that traders price in Binance's operational reliability and the mathematical near-certainty that *some* close price will occur. The real distinction emerges only when examining what threshold value the blank is filled with; markets resolving above trivially low levels (e.g., $0.01) or absurdly high ones (e.g., $100,000) will naturally skew toward YES or NO respectively.

Traders monitoring this market should track Binance's system status and any scheduled maintenance windows affecting ETH/USDT liquidity in the hours preceding 12:00 ET on the settlement date. Macro catalysts—Federal Reserve decisions, Ethereum protocol upgrades, or major stablecoin events—can shift intraday volatility, but they influence price direction rather than the binary fact of whether a close will occur. For API-driven traders, the key operational step is confirming Binance's candle data is live and uninterrupted at settlement time.

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

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

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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%.