Bitcoin price on August 21?

Platform comparison

Market context

Bitcoin's spot price at noon Eastern Time on 21 August 2026 will determine this market's outcome, with settlement tied to the Binance BTC/USDT 1-minute candle close at that specific moment. The 0% crowd probability suggests either extreme confidence in a particular price bracket or minimal trading activity on this particular contract. Cross-platform comparison reveals a notable gap: whilst prediction markets show near-zero conviction, traditional derivatives exchanges and spot venues typically maintain tighter bid-ask spreads on Bitcoin's intraday movements, indicating active pricing across multiple timeframes. Analyst consensus on medium-term Bitcoin trajectories (six to twelve months) remains fragmented, with institutional forecasts ranging from $35,000 to $120,000 depending on macroeconomic assumptions and regulatory developments.

Historical precedent matters here. Bitcoin's daily volatility has averaged 2–4% over the past three years, meaning noon prices on any given date rarely deviate more than $1,000–$3,000 from the previous day's close under normal conditions. However, August 2026 sits beyond the next Bitcoin halving cycle (expected April 2024), a period when seasonal patterns and institutional positioning often shift. Traders should monitor Federal Reserve communications and inflation data releases scheduled for mid-August, as these have historically triggered coordinated moves across crypto and traditional markets. Geopolitical developments and major exchange announcements in the weeks prior will also shape implied volatility and spot-price expectations heading into the settlement date.

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

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.

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.

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 Best Prediction Markets 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.