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.
Market context
Bitcoin's five-minute price movement between 1:05 PM and 1:10 PM ET on 25 May 2026 will determine this contract's outcome, with settlement contingent on Chainlink's BTC/USD data feed rather than spot-market aggregates or individual exchange quotes. The 0% implied probability reflects either extreme confidence in downward movement or minimal liquidity in the order book; comparable five-minute micro-windows on Bitcoin typically attract shallow trading volumes, making crowd probabilities unreliable proxies for actual directional conviction.
Historical precedent suggests five-minute Bitcoin price windows resolve "Down" roughly 48–52% of the time, depending on volatility regime and time-of-day effects. Morning US trading hours (1:05 PM ET falls within afternoon European close) have shown marginally higher volatility clustering than overnight periods, though intraday directional bias remains negligible across rolling five-minute samples. The Chainlink feed's slight lag relative to spot prices—typically 1–3 seconds—introduces minor settlement risk if price action reverses sharply at the window's close.
Traders should monitor macroeconomic data releases scheduled for 25 May and any Federal Reserve communications that could drive broader risk-asset repricing in the preceding hours. Bitcoin's correlation with equity futures remains material; any significant S&P 500 movement between 1:00 PM and 1:10 PM ET could establish directional momentum into the settlement window. The current 0% probability suggests the market has either closed to new orders or reflects a technical glitch; meaningful divergence from 50% would indicate genuine edge rather than noise.
Methodology
We track Bitcoin Up or Down - May 25, 1:05PM-1:10PM ET 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
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.
Trade Bitcoin Up or Down - May 25, 1:05PM-1:10PM ET on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
Trade on PolyGram →