Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi Alternative UK Pick polygram.ink |
5% | 95% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi Alternative UK → |
Polymarket polymarket.com |
5% | 95% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi Alternative UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi Alternative UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi Alternative UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi Alternative 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 Alternative UK.
Active sub-markets
Market context
The real-world event is the closing price of Bitcoin on 25 June 2026, a single data point that determines whether the market settles YES or NO. With the crowd-implied probability at just 5% for a specific price target, traders are effectively betting against a sharp upside move in the final hours of the settlement window.
Historically, Bitcoin has shown extreme volatility in June, dropping to $17,708 in June 2023 during a crypto winter, yet surging to $126,198 in October 2025 before retreating to around $60,000 in early 2026 [5]. Current pricing sits at $60,909 on 25 June 2026, down 2.78% from the previous day and 42.53% from one year ago [2]. This recent decline mirrors the pattern where prices fall after reaching all-time highs, suggesting the 5% probability reflects a market expecting continued consolidation rather than a breakout.
Traders should monitor institutional adoption announcements and global M2 money supply trends, as a paper cited in recent analysis predicts Bitcoin could reach $444,000 by mid-2026 if institutional demand accelerates [4]. However, with the price currently near $61,000, the gap to that target remains vast, and the settlement deadline of 26 June 2026 leaves little time for such a surge. Platforms like Polymarket offer decimal odds without KYC, whereas Kalshi and Betfair require identity verification and use implied probabilities, creating divergent liquidity and fee structures for this specific market [8]. The fee disparity and KYC reach mean that retail traders may find Polymarket more accessible, while institutional players might prefer regulated venues despite higher costs.
Methodology
We read What price will Bitcoin hit on June 25? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Where can I trade this market with the lowest fees?
- On Kalshi Alternative 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?
- Kalshi Alternative 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.
- 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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