Bitcoin Up or Down - August 20, 8AM ET

Platform comparison

Market context

Bitcoin's price movement during a single hour on 20 August 2026 will determine this market's outcome. The contract settles on whether BTC/USDT closes at or above its opening price on Binance during the 1-hour candle beginning at 8:00 AM ET. The 5-hour settlement window (ending 1:00 PM ET) allows the full candle to form and finalise before resolution.

The 100% implied probability reflects the mathematical structure of hourly binary outcomes rather than directional conviction. Historical analysis of intraday Bitcoin volatility shows that single-hour candles close higher roughly 51–53% of the time across major exchanges, with Binance's BTC/USDT pair exhibiting similar patterns. This slight upward bias stems from Bitcoin's long-term positive drift and the prevalence of algorithmic trading that tends to accumulate positions during quiet periods. However, the crowd's certainty here appears misaligned with typical hourly volatility; such extreme odds usually indicate either low liquidity, a technical glitch in probability calculation, or traders treating this as a near-certain outcome based on broader market conditions at that specific date.

Traders monitoring this contract should track macroeconomic data releases scheduled for 20 August 2026, Federal Reserve communications, and any major cryptocurrency regulatory announcements that could trigger volatility during the 8–9 AM ET window. Bitcoin's intraday behaviour often correlates with US equity futures trading and overnight Asian market closes. Divergences between Polymarket's 100% and any competing odds on Kalshi or traditional sportsbooks would signal mispricing; such extreme confidence in a 50–50 event warrants scepticism.

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 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.