What price will Bitcoin hit on August 20?

Platform comparison

Market context

Bitcoin's price action on a single calendar day remains one of the most volatile prediction surfaces in crypto markets. The settlement window captures a 24-hour window ending 21 August 2026, meaning traders are pricing the probability that Bitcoin will touch a specific price level—implied by the 2% crowd probability—at some point during that trading day. Current spot prices and forward volatility curves suggest the market is pricing in modest intraday swings, though the exact strike level underpinning this contract remains the critical variable for position-taking.

Historical precedent shows single-day Bitcoin moves of 5–15% occur roughly 3–4 times annually, with larger excursions tied to macroeconomic announcements, regulatory filings, or exchange-listed product flows. The 2% implied probability aligns with tail-event pricing seen on Kalshi's crypto volatility contracts, where similarly extreme daily moves trade at 1–3% odds. Polymarket's equivalent Bitcoin price contracts typically show wider probability distributions, reflecting the platform's larger liquidity pools and retail participation; any meaningful divergence between these venues suggests either mispricing or differing settlement interpretations.

Traders should monitor Federal Reserve communications in early August 2026, as rate decisions or inflation data have historically driven correlated moves across risk assets and Bitcoin. Spot exchange volumes, particularly on Coinbase and Kraken, will telegraph institutional positioning ahead of the settlement window. Any announced regulatory action—such as SEC guidance on spot Bitcoin ETF custody or staking rules—could compress or expand the probability range materially within 48 hours of the event.

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

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 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 PolyGram 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.