Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Market context
The market resolves on whether Binance’s BTC/USDT spot price closes higher than or equal to its open for the 1-hour candle starting at 3AM ET on 13 July, with settlement in USDC. A 100% crowd-implied probability for “Up” is statistically anomalous for a single hourly candle, as intraday volatility typically produces near‑random outcomes over such short windows.
Historically, hourly BTC candles on Binance show close‑to‑50% “Up” frequency, with Polymarket’s own 3AM ET contract on the same date pricing “Up” at 51% just hours earlier [2]. Comparable hourly micro‑markets across 2024–2025 rarely exceed 60% implied probability unless driven by scheduled liquidity events; a 100% reading suggests either a data lag, a liquidity gap, or a temporary arbitrage dislocation rather than a genuine macro tilt.
Traders should monitor Binance spot funding rates, whale order‑book imbalances, and any scheduled US macro releases or crypto‑specific announcements that could trigger rapid spot moves. Key dependencies include the 1H candle’s open/close on Binance’s official graph, funding‑rate flips on perpetuals, and large USDC stablecoin flows that often precede spot squeezes. Recent TradingView analysis notes that high‑volume 1H candles can invalidate prior support levels, increasing the chance of sharp reversals even when short‑term sentiment is skewed [7].
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 — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
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
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
Trade Bitcoin Up or Down - July 13, 3AM ET on BTC Prediction
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