Bitcoin above … on August 22?

Platform comparison

Market context

The market concerns Bitcoin's price at precisely noon Eastern Time on 22 August 2026, measured via the one-minute candle close on Binance's BTC/USDT pair. The 100% implied probability reflects the threshold price specified in the market title—currently unannounced—rather than genuine certainty about Bitcoin's direction. Once the threshold is published, the probability will recalibrate based on Bitcoin's spot price relative to that level. This structure means the market's current odds tell us nothing about expected volatility or directional bias; they simply indicate that no threshold has yet been set that traders consider implausible.

Bitcoin's intraday volatility at specific timestamps has historically ranged from 1–3% across major exchanges during calm market conditions, though geopolitical events or macroeconomic announcements can widen that range substantially. The noon ET window carries no particular seasonal significance for Bitcoin trading, though US equity market open (9:30 ET) often precedes elevated crypto volume. Traders should monitor Federal Reserve communications, inflation data releases, and any regulatory announcements scheduled for the week of 18–22 August 2026, as these have historically moved spot prices meaningfully within single-day windows.

Binance's BTC/USDT pair typically shows tight spreads and deep liquidity, making the one-minute candle close a reliable settlement reference. Cross-exchange basis spreads between Binance and competitors like Kraken or Coinbase have averaged under 0.2% in recent years, suggesting limited arbitrage opportunity should the threshold land near current price levels. The settlement mechanism's specificity—requiring the exact one-minute candle close rather than a daily average—introduces minor execution risk but reduces dispute likelihood.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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 Best Prediction Markets. 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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.