Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
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 PolyGram.
Active sub-markets
Market context
At present Polymarket is effectively treating this Bitcoin check as a near-certain yes: the contract is trading at 100% YES, with USDC locked on Polygon and the outcome represented by conditional tokens that settle once Binance’s 12:00 ET BTC/USDT one-minute candle closes. The market is not about where Bitcoin trades broadly through the day, but about that specific Binance print at noon Eastern on 21 May, so the relevant question is whether the exchange’s close sits above the strike embedded in the contract.
That 100% reading needs to be viewed against the way Bitcoin has behaved around intraday cut-offs rather than headline levels. For a noon candle settlement, the historical frame is often less about the day’s high or low and more about whether price is already comfortably above the threshold well before the window, leaving little room for a reversal. When a contract has fully saturated like this, the spread is usually telling you that traders see almost no realistic path to a lower Binance noon close, not that the wider market is immune to volatility. In practice, these markets can still flip only if there is an abrupt move, a thin-book print, or a sharp exchange-specific dislocation.
The immediate catalysts are the usual ones: macro data, risk sentiment, ETF flow headlines, and any Bitcoin-specific regulation or exchange news arriving before the settlement window closes at 16:00 UTC. Traders should also watch whether Binance’s BTC/USDT market stays broadly aligned with other spot venues, because this market resolves strictly from Binance candles, not a blended index. If a headline hits overnight US time, the noon ET candle can still reflect that move even if the broader market mean-reverts later.
Sources: 1
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- On PolyGram, 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.
- 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.
- 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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