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 | 100% |
| 1,800 | 99% |
| 1,900 | 59% |
| 2,000 | 2% |
| 2,100 | 0% |
| 2,200 | 0% |
| 2,300 | 0% |
| 2,400 | 0% |
Market context
Ethereum must be above the strike on Binance’s 12:00 ET 1-minute ETH/USDT candle on 6 August for this market to settle Yes, so the relevant reference is a single minute’s **Close** on Binance rather than a spot average or another exchange. That matters on platform comparison: Polymarket-style yes/no pricing is usually read as a straight probability, while Betfair and Smarkets quote decimal odds and then skim commission, and exchange access can vary by jurisdiction and KYC coverage.
The present 100% crowd-implied Yes looks very hard to reconcile with published ETH forecasts that still span a wide range. Recent August 2026 models and market round-ups cluster from roughly $1,750 to $3,400, with some more bullish tables above $2,300 and others implying only modest upside from the low $2,000s[1][4][7][17][20]. Comparable prediction-market snapshots also show ETH being priced as a probabilistic range rather than a certainty, with one Polymarket-based readout putting August upside thresholds well below 100% for nearby levels[10][8].
Traders should watch any catalyst that can move ETH between now and the settlement minute: ETF-flow headlines, broader macro risk appetite, and Binance-specific microstructure around a thin 1-minute candle. Reuters has recently highlighted that Ether has been trading on expectations around institutional adoption and the next leg of crypto demand, which can feed abrupt moves in short-dated markets[8]. The main practical difference versus Kalshi, Betfair or Smarkets is that fee treatment and accessibility can change the effective price you pay, while the contract here still resolves solely off Binance ETH/USDT at noon ET, not the broader market consensus.
Methodology
This page compares Ethereum above … on August 6? 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.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- 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 6? on Robinhood Prediction Markets
Live order book, 0% fees, USDC settlement in seconds.
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