Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ↑ 79,000 | 100% |
| ↑ 78,000 | 100% |
| ↑ 77,000 | 100% |
| ↑ 76,000 | 100% |
| ↑ 75,000 | 100% |
| ↑ 80,000 | 32% |
| ↑ 81,000 | 19% |
| ↓ 74,000 | 12% |
| ↑ 82,000 | 10% |
| ↓ 73,000 | 7% |
| ↓ 72,000 | 2% |
| ↓ 71,000 | 1% |
| ↓ 70,000 | 1% |
| ↓ 69,000 | 1% |
| ↓ 68,000 | 1% |
| ↓ 67,000 | 0% |
Market context
Bitcoin's price movement on a specific calendar date depends on macroeconomic announcements, institutional flows, and sentiment shifts that often cluster around central bank decisions or earnings seasons. August 21, 2026 falls outside major scheduled US Federal Reserve or ECB policy windows, making the outcome heavily dependent on unscheduled news—geopolitical events, regulatory filings, or large spot exchange-traded fund flows. The 10% implied probability reflects the difficulty of pinpointing a precise price target on a single day rather than a range over weeks.
Historical Bitcoin price movements show that single-day targets beyond ±5% from the prior week's close occur roughly 8–12% of the time, typically triggered by regulatory announcements or macroeconomic surprises. The German GlüStV (Glücksspielstaatsvertrag) framework classifies certain prediction markets as gambling rather than financial instruments, which affects how German traders access unregulated platforms; US CFTC oversight of Bitcoin derivatives has tightened since 2023, though spot price predictions remain less regulated than leveraged contracts. These jurisdictional boundaries shape liquidity and participation patterns but do not directly determine Bitcoin's price.
Traders monitoring this market should track scheduled events in the six weeks prior: US inflation data, employment reports, and any major cryptocurrency regulatory announcements from the SEC or international bodies. The no-KYC threshold of $1,500 on certain platforms means smaller traders can participate without identity verification, lowering barriers to entry but also increasing noise in crowd predictions. Institutional Bitcoin holdings and macroeconomic volatility indices will likely drive August 21 outcomes more than prediction market sentiment alone.
Methodology
This overview of What price will Bitcoin hit on August 21? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Polymarket Germany Legal has a different geo footprint.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Polymarket Germany Legal stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Germany Legal exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Germany Legal would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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