Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets) Pick polygram.ink (preferred broker) |
46% | 54% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
46% | 54% | 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 → |
Market context
Ethereum’s noon-to-noon Binance close is sitting in a tight range around the low-$1,900s, so the market is effectively asking whether ETH can finish 10 August above or below its 9 August noon close by a small margin. The crowd-implied probability of 51% for **YES** points to a near coin-flip, and that is broadly in line with several price-prediction models that cluster around roughly flat to modestly higher ETH in the short term, rather than a decisive directional move[2][13][17][20].
That shape matters because comparable forecasts are split between slightly constructive and neutral readings: CoinCodex’s short-term output is close to flat, Binance’s own prediction tool describes ETH as neutral on momentum, while CryptoSlate’s August market snapshot suggests ETH is more likely to hold below higher round-number thresholds than to break out cleanly[14][17][20]. Against that backdrop, the current contract price implies less conviction than many longer-horizon forecasts, which still leave room for either a minor upward drift or a shallow pullback rather than a trend day[10][12][14].
For traders, the main catalysts are the usual late-summer ETH drivers rather than a single scheduled event: spot demand, broader crypto risk appetite, and whether Ethereum can sustain support near the current band during US and European hours. Recent price feeds show ETH trading around $1,915–$1,923, with day-to-day swings of about 0.5% to 2%, so even ordinary volatility is enough to flip the outcome when the comparison is only between two noon closes one day apart[1][2][4][5].
Methodology
We track Ethereum Up or Down on August 10? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
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.
FAQ
- 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 Best Prediction Markets. 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.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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 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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