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
Bitcoin's noon ET price on 31 May 2026 will determine whether spot BTC/USDT on Binance closes above a specified threshold at that exact moment. The resolution hinges on a single 1-minute candle's close price, making this contract sensitive to intraday volatility and order-book depth at that precise timestamp rather than daily or weekly trends. Binance's BTC/USDT pair remains the largest spot venue globally by notional volume, though the 1-minute granularity introduces execution risk: a flash wick or thin liquidity during US noon hours could swing settlement.
Historical precedent suggests that 100% crowd probability on a specific price level more than 18 months forward reflects either an extremely conservative threshold or mispricing of tail risk. Bitcoin's realised volatility over comparable 18-month windows has ranged from 40–80% annualised; a single noon candle's close is far more volatile than monthly or quarterly closes. The 2024–2025 period saw BTC swing between $16,500 and $108,000, illustrating how wide the plausible range remains. Markets pricing such distant events at certainty typically unwind when spot conditions tighten or macro regime shifts occur.
Traders should monitor Federal Reserve policy announcements and US Treasury yields through early 2026, as these drive risk appetite and stablecoin flows into spot exchanges. Bitcoin's correlation with equities has strengthened during tightening cycles; any unexpected rate hike or inflation surprise near May could compress liquidity. On-chain metrics including exchange inflows and whale accumulation patterns will signal whether large holders are positioning for or against the threshold. Funding rates on perpetual contracts and options skew will also telegraph institutional hedging behaviour closer to settlement.
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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, BTC Prediction triggers a quick verification flow that finishes in 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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