Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
90% | 10% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
90% | 10% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| China / Chinese | 90% |
| Oil | 88% |
| Trump 5+ times | 80% |
| Hottest | 79% |
| Fake News | 79% |
| Loan | 78% |
| Regulation | 77% |
| Afford / Affordable / Affordability | 77% |
| Save America | 76% |
| Steel | 74% |
| Hell 7+ times | 70% |
| Percent 15+ times | 68% |
| Toyota | 68% |
| Stock Market | 67% |
| Transgender | 59% |
| Joe / Biden 12+ times | 52% |
| Job 20+ times | 52% |
| Grocery / Dairy | 47% |
| Motor City | 46% |
| Oil / Gas 10+ times | 44% |
| Drill Baby Drill | 43% |
| USMCA / NAFTA | 39% |
| Supreme Court | 35% |
| Ethanol | 28% |
| Mars | 17% |
| -No Qualifying Event- | 0% |
Market context
Donald Trump is due to speak in Michigan on 27 July, and the market is asking a very specific question: whether a named phrase is said during that scheduled appearance, not elsewhere on the day. With no live transcript yet, the implied 68% yes price mainly reflects the fact that Trump’s remarks often include off-the-cuff language, but the settlement will still hinge on the exact wording in the recorded event and whether the term is spoken clearly within that window.
Comparable Trump speech markets have tended to trade above fair value when the setting is highly scripted but the speaker is known for improvised phrasing, because traders expect at least one reference to the headline topic, venue, or audience. That said, a high yes price does not guarantee resolution: these contracts often turn on the transcription standard, whether a synonym counts, and whether the term appears in prepared remarks or spontaneous asides. On-chain, that means the contract can remain volatile right up to settlement if the event is still pending and liquidity is thin on the final approach.
The main catalysts are the final event logistics: whether the Michigan stop goes ahead as scheduled, whether the speech is shortened or cancelled, and whether the campaign releases prepared remarks that hint at the vocabulary likely to be used. In crypto terms, traders should watch the USDC-settled market’s last-trade price and any sharp moves in open interest or funding across related prediction venues, because late information tends to concentrate positioning into the final hours before transcript risk is resolved.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- Are crypto prediction markets taxable in the US?
- In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.
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