Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
91% | 9% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
91% | 9% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ↑ 1,900 | 91% |
| ↓ 1,800 | 75% |
| ↑ 2,000 | 63% |
| ↓ 1,700 | 46% |
| ↑ 2,100 | 41% |
| ↓ 1,600 | 26% |
| ↑ 2,200 | 21% |
| ↓ 1,500 | 14% |
| ↑ 2,300 | 13% |
| ↓ 1,400 | 10% |
| ↑ 2,400 | 7% |
| ↓ 1,300 | 5% |
| ↑ 2,500 | 4% |
| ↓ 1,200 | 3% |
| ↑ 2,600 | 2% |
| ↑ 3,000 | 1% |
| ↑ 2,700 | 1% |
| ↓ 1,100 | 1% |
| ↓ 1,000 | 1% |
| ↓ 900 | 1% |
Market context
Ethereum needs to trade through a specific price level before the August window closes, so the present 1% crowd-implied YES price is best read as a view that the target is far above where ETH has been trading lately. Independent August 2026 forecasts are clustered much lower, with one set of models around the high-$1,700s to low-$2,700s, another near $2,200 to $2,900, and several technical write-ups describing resistance near $2,000 to $2,400 rather than a straight-line move higher.[1][2][3][8][11]
That gap matters when comparing venues: Polymarket shows the event in implied-probability terms, while Betfair, Kalshi and Smarkets more often surface decimal prices or contract prices, so the same view can look different once fees, spread and access are included. Prediction-market listings also move on liquidity, and CryptoSlate’s coverage notes Polymarket odds on nearby ETH thresholds such as 1,900, 2,000 and 2,100, underscoring how traders are pricing incremental milestones rather than a single large breakout.[4] For catalysts, watch Ethereum’s own roadmap and any US crypto policy or ETF-flow headlines, because ETH’s August path will likely depend on whether buyers can defend current support and whether broader risk appetite improves; recent market commentary continues to frame the near-term setup around failed breakouts, support near $1,800 and resistance around $2,000.[2][6]
Methodology
We read What price will Ethereum hit in August? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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