Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi 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 Kalshi UK.
Active sub-markets
Market context
Bitcoin's price action on 30 May 2026 will settle this contract, with traders on Polymarket currently pricing the YES outcome at 0%, suggesting the crowd views a specific price target as highly unlikely within that single-day window. The market operates on Polygon via USDC settlement, with conditional tokens reflecting the binary outcome once the settlement window closes on 31 May at 04:00 UTC. The 0% probability reflects not impossibility but rather the extreme specificity required—Bitcoin would need to hit a precise level on an exact date, a constraint that differs fundamentally from broader price-range markets.
Historical Bitcoin volatility offers context for interpreting this pricing. Whilst Bitcoin has experienced intraday swings exceeding 10% during volatile periods, hitting a predetermined price on a specific calendar date remains statistically challenging. The 2021–2022 bear market and subsequent recovery cycles demonstrate that single-day price targets often fail to materialise as expected, particularly when markets lack a scheduled catalyst tied to that exact date. Comparable single-day price-target markets on prediction platforms have consistently shown low probability assignments unless tied to scheduled announcements or economic data releases.
Traders monitoring this contract should track Federal Reserve communications, major macroeconomic data (inflation reports, employment figures), and cryptocurrency-specific developments such as regulatory announcements or significant institutional flows. Bitcoin's correlation with equity markets and risk sentiment means broader market movements in May 2026 will influence intraday volatility. Without a known catalyst scheduled for 30 May specifically, the 0% probability reflects rational scepticism about hitting a precise target on demand rather than fundamental impossibility.
Methodology
We track What price will Bitcoin hit on May 30? 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
- Is this market available outside the US?
- Kalshi 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.
- 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.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi UK triggers a quick verification flow that finishes in minutes.
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