Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
80% | 20% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
80% | 20% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
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 PolyGram.
Market context
Bitcoin's intraday price movement between noon ET on 24 May 2026 and noon ET on 25 May 2026 will determine this market's outcome, with resolution tied to Binance's 1-minute candle closes at those precise timestamps. The 83% implied probability for an upward move reflects substantial confidence in appreciation over that 24-hour window, though the narrow temporal frame and single-exchange data source concentrate execution risk.
Historical volatility patterns suggest single-day Bitcoin directional bets carry meaningful uncertainty despite high crowd confidence. During comparable 24-hour windows in 2024 and 2025, intraday swings of 2–4% were routine, yet markets pricing directional moves above 80% frequently encountered reversals within the settlement window. The specificity of Binance's closing price at exactly noon ET introduces additional friction; flash movements or order-book imbalances during that minute can override broader daily trends. Cross-platform comparison data from major sportsbooks and derivatives exchanges typically show lower confidence in single-day directional calls, often clustering around 60–70% for similar timeframes.
Traders should monitor macroeconomic releases scheduled for 24–25 May 2026, including any US Federal Reserve communications or employment data that could trigger volatility spikes. Bitcoin's correlation with equities and risk sentiment remains material; equity futures performance on 25 May morning will likely influence the final hour before settlement. Network activity, stablecoin flows, and large exchange withdrawals during the 24-hour window merit observation, as these can precede significant price movements. The 83% probability sits notably above typical analyst consensus for single-day directional certainty, suggesting either exceptional conviction or potential overconfidence in the crowd's positioning.
Methodology
We track Bitcoin Up or Down on May 25? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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 does it cost to trade on PolyGram?
- Zero. PolyGram 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.
Trade Bitcoin Up or Down on May 25? on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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