Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| 1,400 | 100% |
| 1,500 | 100% |
| 1,600 | 100% |
| 1,700 | 99% |
| 1,800 | 98% |
| 1,900 | 4% |
| 2,000 | 1% |
| 2,100 | 0% |
| 2,200 | 0% |
| 2,300 | 0% |
| 2,400 | 0% |
Market context
Ethereum needs only a small move above the price threshold for the market to resolve **Yes**, because settlement is tied to Binance’s 1-minute ETH/USDT candle at 12:00 ET on the target date, not to a daily close or a broader exchange average. That makes this a microstructure bet as much as a directional one: the exact Binance print at noon matters more than the wider spot market, so short-lived volatility around that minute can decide the outcome.
The current **100% YES** crowd view looks consistent with the broad spread of published August 2026 Ethereum forecasts, many of which sit well above the low- to mid-$2,000s, though several more conservative models still cluster near the high-$1,700s to low-$1,800s. For context, Coinpedia notes ETH trading near $1,865 with $1,807 as immediate support and $2,029 as the first major resistance, while other August 2026 forecasts range from about $1,717 to $3,399 depending on the model. That is why comparison across platforms matters: Polymarket-style markets quote implied probability directly, whereas Kalshi, Betfair and Smarkets often present decimal odds or market prices that need converting before like-for-like comparison, and fees plus KYC access can materially change the effective edge.
Traders will mainly be watching ETF flows, Ethereum network and roadmap headlines, and any broad crypto risk move into the turn of the month, because those can swing Binance spot even if the specific event is only a noon candle. Recent commentary has also linked upside cases to upcoming protocol upgrades and regulatory clarity, including discussion of Fusaka and U.S. legislation, while bearish cases remain tied to failure to hold support near the high-$1,700s. If the market is already priced at a certainty on one venue, the practical question on other books is often not direction but whether the listed price has enough buffer above the threshold to absorb a brief intraday sell-off.
Methodology
This page compares Ethereum above … on August 1? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- 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.
Trade Ethereum above … on August 1? on Robinhood Prediction Markets
Live order book, 0% fees, USDC settlement in seconds.
Open live market →