Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
97% | 3% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
97% | 3% | 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 |
|---|---|
| 30°C | 97% |
| 31°C | 3% |
| 32°C | 1% |
| 26°C or below | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 36°C or higher | 0% |
Market context
On 14 August 2026, the highest temperature recorded at Shenzhen Bao'an International Airport Station will determine the settlement outcome of this market. The resolution will draw from Weather Underground's Daily Observations table rather than the summary Day High & Low section, a distinction that matters when discrepancies arise between automated station readings and processed summaries. Shenzhen's August climate typically peaks between 32–35 °C, though extreme heat events occasionally push readings higher. The specific temperature range brackets will define whether traders holding positions in the upper or lower bands receive settlement.
Historically, Shenzhen August temperatures have shown consistent patterns: the city averages a high of 32.4 °C with rare excursions above 36 °C. The 0% crowd probability suggests traders currently assess the highest possible temperature range as unlikely, though this reflects either low trading volume or genuine confidence in moderate conditions. Comparable August markets in southern Chinese cities have resolved across the full temperature spectrum, indicating that while typical outcomes cluster in the 32–34 °C band, outlier heat waves do occur with measurable frequency.
From a regulatory standpoint, this market's accessibility varies by jurisdiction. Under German GlüStV rules, prediction market operators must comply with gambling licensing requirements; traders in Germany should verify their platform's authorisation status. US CFTC reach extends to binary options and derivatives on weather indices, though non-leveraged prediction markets occupy a grey zone. Platforms offering no-KYC access up to $1,500 notional exposure typically apply this threshold per market or per user account, meaning traders can participate without identity verification provided their single position remains below that limit. Settlement timing closes 14 August 2026 at 12:00 UTC, allowing real-time temperature data from the airport station to feed into final resolution.
Methodology
This overview of Highest temperature in Shenzhen on August 14? 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
- 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.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
- 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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