Bitcoin Up or Down - August 20, 3AM ET

Platform comparison

Market context

This market settles on whether Bitcoin's price at 3AM ET on 20 August 2026 closes at or above its opening level on the Binance BTC/USDT pair during that specific one-hour candle. The resolution hinges on Binance's published open and close values for the 1H timeframe—data that becomes final once the candle closes. For traders building conditional orders or bot logic around intraday volatility, this represents a straightforward binary: the candle either closes higher or it doesn't, with no partial settlement.

The 0% crowd probability reflects extreme scepticism about upward movement during a pre-dawn UTC window, though historical intraday candle data shows Bitcoin regularly produces mixed directional outcomes across all hours. Examining Binance's 1H candle archive from comparable periods—particularly low-liquidity windows between 2AM and 4AM ET—reveals roughly 45–55% win rates for up candles, depending on the underlying trend. The current zero probability suggests either a technical issue with market creation or a view that broader Bitcoin momentum will be decisively bearish by August 2026.

Traders monitoring this market should track macroeconomic calendars for late August 2026, including any Federal Reserve communications or inflation data releases that could establish overnight directional bias. Real-time feeds from Binance's API allow automated position management; many power-users integrate 1H candle data directly into their trading terminals to avoid manual price checks at settlement time. The five-hour window between candle open and market settlement provides sufficient time to adjust conditional orders based on intraday price action.

Methodology

We track Bitcoin Up or Down - August 20, 3AM ET across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.