Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
27% | 73% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
27% | 73% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ↑ 2,000 | 27% |
| ↓ 1,800 | 16% |
| ↑ 2,100 | 7% |
| ↑ 2,200 | 2% |
| ↓ 1,700 | 2% |
| ↓ 1,600 | 2% |
| ↑ 2,600 | 0% |
| ↑ 2,500 | 0% |
| ↑ 2,400 | 0% |
| ↑ 2,300 | 0% |
| ↓ 1,500 | 0% |
| ↓ 1,400 | 0% |
| ↓ 1,300 | 0% |
| ↓ 1,200 | 0% |
Market context
Ethereum's price action over the past 48 hours has remained range-bound, with spot trading hovering near $2,400–$2,500 as macro sentiment stabilises following last week's Federal Reserve communications. The August 10–16 settlement window captures a period historically prone to summer volatility, though current implied probability of 0% suggests the crowd expects no extreme price movement during that specific week. This reflects both the absence of scheduled catalyst events and the typical liquidity patterns of mid-August trading.
Historical precedent shows Ethereum rarely experiences sharp directional moves without coordinated triggers. During comparable periods in 2023 and 2024, weekly price swings of 10–15% occurred only when paired with macroeconomic releases, major exchange announcements, or protocol-level developments. The current 0% probability reading aligns with this pattern: no Ethereum Improvement Proposals are scheduled for deployment that week, and no major institutional announcements have been flagged for the settlement window. Traders should note that summer weeks typically see reduced institutional participation, which can amplify volatility if unexpected news breaks.
The key dependencies to monitor are US economic data releases (particularly any CPI or employment figures falling within the window) and broader cryptocurrency market sentiment tied to Bitcoin's trajectory. Recent reporting from CoinDesk and The Block indicates that Ethereum's near-term price discovery remains tethered to macro risk-off dynamics rather than protocol-specific catalysts. Any significant deviation would require either a surprise regulatory announcement or a material shift in staking economics—neither of which appears imminent as of mid-2026.
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
- 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 Prediction Today. 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%.
Trade What price will Ethereum hit August 10-16? on Prediction Today
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