Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Market context
Polymarket is pricing this BTC/USDT one-hour candle as a near-certain **Up** outcome, with the contract at **100% YES** despite the fact that final settlement depends only on whether Binance’s 1H candle from 1:00–2:00 a.m. ET closes at or above its open. Because the market is settled with Polygon-based USDC and conditional tokens, the practical question is not where Bitcoin “should” trade, but whether that specific hourly snapshot on Binance prints a non-negative move once the candle is finalised.
That 100% print looks very stretched against the underlying tape. Bitcoin has been trading in the mid-$66,000s, with recent readings around $65,900–$66,200 and a 24-hour range that still includes both sides of that level, so a single hour can easily flip on routine volatility rather than a structural trend. Comparable intraday moves also matter here: Bitcoin has recently faded after brief pushes higher, including sessions where an early rally lost momentum and finished close to flat, which is the kind of pattern that can punish an overconfident hourly “Up” price.
The immediate catalysts are mostly mechanical: Binance spot flow during that hour, any US macro headlines landing overnight, and whether broader crypto risk sentiment keeps the market bid into the candle close. Traders should also watch for ETF flow commentary, miner sell-pressure shifts, and any late-session moves in futures or dollar strength, since these can influence a short BTC/USDT candle without needing a major headline. The key dependency is simple: if the Binance open is only marginally below the close, the market resolves **Up**; if volatility pushes the close even fractionally lower, it flips to **Down**.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, which mirrors the Polymarket order book directly.
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
- 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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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 Up or Down - July 23, 1AM ET on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
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