Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on BTC Prediction.
Active sub-markets
Market context
Ethereum's spot price on Binance's ETH/USDT pair will be sampled at a single point: the closing price of the 1-minute candle at noon Eastern Time on 31 May 2026. This narrow settlement window—a single candlestick rather than a daily close—introduces execution risk and reduces the relevance of broader daily price action. The 100% crowd probability suggests traders expect Ethereum to trade above the specified threshold with near-certainty, though the specificity of the timestamp and exchange pair warrants scrutiny of how realistic that confidence is given historical volatility and the two-year time horizon.
Single-candle resolution markets on major pairs have historically shown that even modest thresholds can face execution risk when settlement depends on a precise moment rather than an aggregated daily figure. Binance ETH/USDT spot liquidity is deep, but noon ET on a Friday in May could coincide with lower volume periods depending on market conditions. Comparable markets resolving on specific hourly candles have occasionally seen resolution disputes or narrow misses when price action clustered near the threshold, particularly during low-volume windows or when macro volatility spiked.
Between now and May 2026, Ethereum's trajectory will track Bitcoin correlation, Ethereum's own roadmap progress (including any Shanghai or Dencun-equivalent upgrades), and broader macroeconomic conditions affecting risk appetite. Funding rates on perpetual futures and whale accumulation patterns on-chain, tracked via Glassnode or similar platforms, will signal conviction ahead of the settlement date. Any major protocol changes, regulatory shifts affecting staking, or shifts in institutional adoption could alter the baseline expectation, though the two-year window provides ample time for price discovery.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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 it cost to trade on BTC Prediction?
- Zero. BTC Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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.
- 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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