Bitcoin Up or Down - August 20, 5AM ET

Platform comparison

Market context

This market settles on whether Bitcoin closes at or above its opening price during a single hourly candle on Binance's BTC/USDT pair at 5AM ET on 20 August 2026. The 100% crowd probability reflects the contract's current pricing on Polymarket, where USDC settlement and Polygon-based conditional tokens create tight spreads on intraday directional bets. At present, traders are pricing zero probability of a down candle, suggesting either extreme confidence in upward momentum or insufficient liquidity to challenge the consensus.

One-hour candles in Bitcoin typically close higher roughly 51–52% of the time across extended periods, making this a near-coin-flip event in normal market conditions. Historical data from 2023–2024 shows that single-hour directional certainty rarely justifies 100% pricing unless external factors dominate. The current probability implies either a structural shift in Bitcoin's intraday behaviour or a thin order book on this specific contract, both worth scrutinising before committing capital.

Traders should monitor macroeconomic data releases scheduled near that UTC window, particularly US inflation figures or Federal Reserve communications, which can drive intraday volatility. Bitcoin's correlation with equities and broader risk sentiment remains a key variable; any significant overnight moves in Asian or European markets could establish directional bias before the 5AM ET candle opens. Binance's own operational status and any platform-wide liquidity events would also affect settlement conditions.

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 PolyGram, 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

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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 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.