Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
100% | 0% | 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 is currently trading just above $65,000, and the prediction market on Polymarket pricing the contract for “Bitcoin above ___ on June 21” shows a 100% crowd-implied probability for the YES outcome, meaning traders are virtually certain the Binance 1-minute close at noon ET will exceed the threshold specified in the title. This contract resolves on-chain using USDC on the Polygon network, where conditional tokens are minted to represent each outcome, and settlement occurs automatically once the Binance candle data is verified.
Historically, similar markets have seen near-100% probabilities only when Bitcoin was in a strong, sustained uptrend with minimal volatility, such as during the 2024 run toward $70,000. In those cases, the price remained above key thresholds for weeks, making the outcome almost certain. The current 100% probability aligns with that pattern, as BTC has held above $62,000 consistently since mid-June, with the latest Binance data showing a close of $70,208.94 on 2 June and current trading near $63,059.55 [2][6].
Traders should watch for any sudden regulatory announcements from the US SEC or major exchange listings, as these can trigger sharp price swings. A recent Binance Square post confirmed Bitcoin crossed $65,000 with a 1.05% increase, reinforcing the bullish momentum [3]. Additionally, the Federal Reserve’s interest rate schedule and any macroeconomic data releases in the week leading to June 21 could act as catalysts. With settlement ending on 2026-06-21 at 16:00 UTC, the market remains tightly priced, and on-chain liquidity in USDC on Polygon continues to support high confidence in the outcome.
Methodology
We track Bitcoin above 2026 on June 21? 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
- 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.
- 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 Bitcoin above 2026 on June 21? on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
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