Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Legal UK Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Legal UK → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Legal UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Legal UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Legal UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Legal UK → |
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 Polymarket Legal UK.
Market context
Bitcoin's price movement over a single 24-hour window—specifically whether the noon ET close on 31 May 2026 sits above or below the noon ET close on 1 June 2026—will determine this market's outcome. The resolution hinges on Binance's BTC/USDT 1-minute candle data, making execution-level precision the operative constraint rather than macro sentiment. A tie resolves the market 50-50, introducing a narrow but material settlement pathway that reflects the granularity of intraday pricing.
The 0% implied probability reflects market-wide scepticism about upward movement over this specific interval, though historical Bitcoin behaviour shows single-day reversals occur frequently enough that such extreme pricing warrants scrutiny. Comparable 24-hour directional markets on major exchanges have settled across the full probability spectrum; the current crowd assessment may reflect either genuine bearish conviction or insufficient liquidity in what remains a niche intraday contract. No-KYC access up to $1,500 USD on certain platforms lowers barriers for retail participation, though this market's settlement window (ending 16:00 UTC on 1 June) constrains the window for late entry.
Regulatory frameworks shape accessibility: the German GlüStV classifies crypto derivatives under gaming law, whilst US CFTC oversight of Bitcoin derivatives has tightened considerably since 2024. Traders should monitor scheduled macroeconomic releases on 31 May and 1 June—US employment data, Fed commentary, or geopolitical developments—as these typically drive intraday volatility. Binance's operational status and any unscheduled maintenance represent technical dependencies; the platform's historical uptime exceeds 99.9%, but system events remain a non-zero settlement risk.
Methodology
We track Bitcoin Up or Down on June 1? 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
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- On Polymarket Legal UK, 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?
- Polymarket Legal UK 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.
- What does it cost to trade on Polymarket Legal UK?
- Zero. Polymarket Legal UK 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.
Trade Bitcoin Up or Down on June 1? on Polymarket Legal UK
Live order book, 0% fees, USDC settlement in seconds.
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