Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ↑ 2,100 | 100% |
| ↑ 2,050 | 100% |
| ↑ 2,000 | 100% |
| ↑ 1,950 | 100% |
| ↑ 2,150 | 13% |
| ↑ 2,200 | 4% |
| ↑ 2,250 | 1% |
| ↓ 1,900 | 1% |
| ↓ 1,850 | 0% |
| ↓ 1,800 | 0% |
| ↓ 1,750 | 0% |
| ↓ 1,700 | 0% |
| ↓ 1,650 | 0% |
| ↓ 1,600 | 0% |
Market context
Ethereum's price on 19 August 2026 will determine whether this contract settles YES or NO, with Polymarket currently pricing a 1% probability of affirmative resolution. The market is denominated in USDC on Polygon, settling via conditional tokens that reflect the underlying spot price across major exchanges at the specified timestamp. At present valuations, traders are pricing in an extremely narrow band of outcomes—suggesting either a specific price threshold embedded in the contract terms, or consensus that Ethereum's volatility over the next 20 months will not produce an outlier event.
Historical precedent offers limited direct comparison given Ethereum's relative youth and the extended timeframe. Between August 2023 and August 2024, Ethereum traded between roughly $1,600 and $4,000, a range reflecting both macroeconomic shifts and sector-specific catalysts including regulatory clarity and institutional adoption patterns. The current 1% probability reflects either high confidence in mean reversion toward established price ranges, or pricing of a specific threshold well outside historical norms. Traders should note that Ethereum's volatility has historically compressed during bull markets and expanded during drawdowns, making long-dated price predictions sensitive to broader crypto market sentiment.
Key catalysts over the settlement window include regulatory developments affecting staking and smart contract platforms, Ethereum network upgrades, and macroeconomic conditions influencing risk asset valuations. The Federal Reserve's interest rate trajectory, institutional capital flows into crypto products, and competitive pressure from alternative layer-one blockchains will shape price discovery. Recent market structure changes, including spot Bitcoin and Ethereum ETF approvals in the US, have altered how institutional money accesses these assets, potentially dampening extreme price movements that might have occurred in earlier market cycles.
Methodology
This page reviews What price will Ethereum hit on August 19? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Alternative UK, which mirrors the Polymarket order book at 0% fees.
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
- 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.
- 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.
- 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%.
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