Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
91% | 9% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
91% | 9% | 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 |
|---|---|
| ↑ 1,900 | 91% |
| ↓ 1,800 | 79% |
| ↑ 2,000 | 62% |
| ↓ 1,700 | 45% |
| ↑ 2,100 | 41% |
| ↓ 1,600 | 26% |
| ↑ 2,200 | 19% |
| ↓ 1,500 | 14% |
| ↑ 2,300 | 12% |
| ↓ 1,400 | 10% |
| ↑ 2,400 | 7% |
| ↓ 1,300 | 5% |
| ↑ 2,500 | 4% |
| ↑ 2,600 | 2% |
| ↓ 1,200 | 2% |
| ↑ 3,000 | 1% |
| ↑ 2,700 | 1% |
| ↓ 1,100 | 1% |
| ↓ 1,000 | 1% |
| ↓ 900 | 1% |
Market context
Ethereum has to trade to a specified price at some point in August for this contract to settle **yes**, so the current **1%** crowd-implied probability is far below most published 2026 Ethereum price outlooks. Recent forecast pages cluster August 2026 ETH estimates mostly in the low- to mid-\$2,000s, with several models also allowing a move into the high-\$2,000s or low-\$3,000s, while a few more bearish technical views still put the month’s likely range closer to the high-\$1,000s to low-\$2,000s[1][2][4][8][10][13]. That means the market is pricing a very specific upside hit rather than a broad August rally, and it is materially more sceptical than analyst-style ranges that assume ETH can recover from current levels.
For historical framing, comparable forecasts suggest August tends to be read as a volatility month rather than a straight-line breakout, with published scenarios spanning from roughly \$1,700 on the low side to above \$3,000 on the high side depending on momentum and trendline breaks[2][3][4][10][13]. The biggest divergence is not between forecasters and the prediction market on direction, but on magnitude: many analyst models still leave room for ETH to reach the mid-\$2,000s, whereas the contract implies the market sees a much smaller chance of touching whatever strike this market is referencing before settlement. That gap is wide enough to matter for cross-platform comparison, especially versus sportsbook-style listings that typically price broader event bands rather than exact price prints.
Traders should watch ETF flow headlines, macro liquidity conditions, and any Ethereum-specific network or scaling updates, because those are the catalysts most often linked to sharp repricing in ETH forecasts[16]. Recent commentary also points to a key technical zone around \$1,800–\$2,000, with downside risk if support fails and upside follow-through if ETH reclaims that area[3]. If ETH is sitting well below the contract’s target price, the market will need either a fast momentum shift or a news-driven catalyst to move the odds meaningfully before the August window closes[3][16].
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
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.
FAQ
- 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.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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