Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ↑ $85 | 100% |
| ↓ $80 | 25% |
| ↑ $90 | 23% |
| ↑ $95 | 6% |
| ↓ $75 | 2% |
| ↑ $115 | 1% |
| ↑ $110 | 1% |
| ↑ $105 | 1% |
| ↑ $100 | 1% |
| ↓ $70 | 1% |
| ↓ $65 | 1% |
| ↓ $60 | 1% |
| ↓ $55 | 1% |
| ↓ $50 | 0% |
Market context
WTI crude oil's price trajectory during the week of 17–21 August 2026 will depend on the specific strike level embedded in this market's YES condition, which determines whether the contract settles affirmatively. The current 1% implied probability suggests traders view a significant price move—either upward or downward—as unlikely within that narrow five-day window. For programmatic traders, this presents a volatility arbitrage opportunity: conditional orders tied to OPEC+ production announcements or geopolitical developments could be structured to trigger only if intraday volatility exceeds historical norms, allowing you to capture edge if the market's baseline assumption proves miscalibrated.
Historical precedent shows WTI rarely moves more than 8–12% in a single week absent supply shocks or demand collapses. The 2022 Russia–Ukraine invasion caused a 15% spike in one week; the 2020 pandemic crash saw weekly swings exceeding 20%. Between those extremes, typical weekly ranges cluster around 3–5%. A trader evaluating this market should monitor late August 2026 for scheduled inventory reports (EIA releases typically Wednesdays), any OPEC+ emergency meetings, and hurricane forecasts affecting Gulf of Mexico production. Spot-price feeds integrated with your trading bot should flag threshold breaches in real time, allowing you to evaluate whether the 1% probability reflects genuine stability or mispricing relative to upcoming data calendars.
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 Kalshi Fees, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade What will WTI Crude Oil (WTI) hit Week of August 17 … on Kalshi Fees
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