Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Market context
Bitcoin's price movement during a single hourly candle on Binance's BTC/USDT pair between 1am and 2am ET on 20 August 2026 will determine whether the contract settles to "Up" or "Down". The resolution hinges on whether the closing price meets or exceeds the opening price for that specific 60-minute window, with settlement finalised once Binance's data is confirmed.
The 0% implied probability assigned by the crowd reflects an unusual disconnect from typical intraday volatility patterns. Historical analysis of Bitcoin's hourly candles shows that single-hour moves favourable to either direction occur with near-parity frequency across most market conditions; a reading this extreme typically signals either extreme confidence in downward pressure or a liquidity/participation issue within this particular contract. Comparable micro-timeframe markets on prediction platforms have occasionally shown similar skewing when trading volume concentrates among a small cohort of participants, though such positions often reverse sharply once broader market interest materialises.
Traders monitoring this contract should track Bitcoin's broader technical setup in the days preceding 20 August, including support and resistance levels that may influence intraday momentum. Macroeconomic calendar events—particularly any Federal Reserve communications or inflation data releases scheduled near that date—can drive volatility spikes that affect hourly price action. The specific 1am ET window falls during Asian trading hours, when volumes typically remain moderate; this timing may amplify the impact of any concentrated trading activity or news flow relative to peak US or European session hours.
Methodology
This page reviews Bitcoin Up or Down - August 20, 1AM ET across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi vs Polymarket, which mirrors the Polymarket order book at 0% fees.
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
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Bitcoin Up or Down - August 20, 1AM ET on Kalshi vs Polymarket
Live order book, 0% fees, USDC settlement in seconds.
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