Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
0% | 100% | 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
Bitcoin’s price for the 1am EDT cut on 20 May is being set in a market that has spent much of the month chopping around the high-$70,000s. By spot level, BTC has repeatedly failed to hold above the $80,000 area, while longer-run resistance near the 200-day moving average, quoted by 24/7 Wall St. at about $82,228, remains a useful reference point. That helps explain why a 0% “YES” price on a specific upside threshold can coexist with live trading above the same level in spot: these contracts settle on a single benchmark print, not an intraday high.
Comparable markets have tended to price Bitcoin’s path through round numbers rather than precise forecasts of where the next print will land. Polymarket’s May and 2026 Bitcoin range markets have kept the upper round figures heavily bid, while exchange-derived forecasts from Changelly and Kraken cluster around roughly $77,000 to $81,000 in late May. In previous BTC tape, repeated failure at a major moving average has usually meant quick mean reversion rather than a clean breakout, especially when momentum is not backed by sustained volume.
Traders should watch US spot flows, derivatives funding, and any large treasury buying or selling, because those tend to move the final benchmark more than headline targets. Strategy’s latest earnings and any update on its Bitcoin purchases remain relevant, given the company’s history of adding on weakness. For the settlement itself, Robinhood notes the event uses CF Benchmarks’ Real Time Index with 60 prices averaged at expiry, so late moves in major exchange spot and futures hedging can matter disproportionately in the final hour. Global BTC/ETH risk appetite also remains tied to broader macro conditions, including dollar strength and crypto funding conditions.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
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.
- Is this market available outside the US?
- PolyGram 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 does it cost to trade on PolyGram?
- Zero. PolyGram 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.
Trade What price will Bitcoin hit on May 20? on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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