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
Polymarket is pricing this contract at **0% YES**, which means the market is effectively assigning no probability to Bitcoin reaching the stated threshold before the 21 June 04:00 UTC settlement cut-off, even though the contract is cash-settled through USDC on Polygon with outcome exposure handled by conditional tokens. In plain terms, a buyer is paying for a binary pay-off on whether BTC trades through the relevant level inside the market’s window, not on where Bitcoin finishes the day in a broader sense.
That reading sits against a backdrop of mixed but generally muted short-term forecast work. CoinCodex’s 20 June model had Bitcoin around **$64,291** for the next day and described the near-term sentiment as bearish, while other forecast pages clustered BTC in the mid-$60,000s rather than near an explosive move higher[1][2][5]. On a recent comparable prediction-market screen, Coinbase’s June BTC market showed very high odds for moderate levels such as $53,100-or-above and $50,000-or-above, which underlines how these contracts can look detached from headline spot levels when the strike is far away from current trading[4].
For traders, the main catalysts are the usual calendar and flow drivers: spot ETF flow headlines, macro prints that change dollar liquidity expectations, and any weekend volatility around funding rates and thin order books. Yahoo Finance reported in early June that Bitcoin was around $73,469 as institutions finished May with the biggest monthly ETF outflow of 2026, with whales and broader positioning still shaping the tape[8]. That matters here because a late-session spike or liquidation cascade can move a low-probability strike much faster than slower-moving fundamentals, especially with a same-day expiry window and on-chain settlement mechanics that reflect the market’s live repricing rather than a discretionary close.
Methodology
We track What price will Bitcoin hit on June 20? 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 Kalshi 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.
- 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 Kalshi UK?
- Zero. Kalshi 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 What price will Bitcoin hit on June 20? on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
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