Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Kalshi UK.
Active sub-markets
Market context
Polymarket's conditional USDC tokens on Polygon are pricing this contract at 0% implied probability, meaning the market currently assigns negligible odds to Elon Musk posting between 7 and 8 times during the week of 2–9 June 2026. The settlement window captures main feed posts, quote posts and reposts across a seven-day period, excluding replies unless they appear directly on the main feed timeline. Deleted posts count provided the tracker captures them within approximately five minutes of publication.
Historical posting patterns show Musk's X activity fluctuates considerably based on external events and product announcements. During periods of major Tesla earnings calls, SpaceX launches or product reveals, his tweet volume typically spikes above baseline; conversely, weeks without scheduled corporate announcements often see lower engagement. The 0% pricing suggests traders expect either minimal activity during this specific week or that the threshold itself (7–8 posts) sits above his typical daily output for that period.
Catalysts to monitor include any scheduled Tesla shareholder meetings, SpaceX Starship test flights, or xAI product announcements falling within or immediately preceding the settlement window. Musk's posting behaviour also correlates with market volatility and regulatory developments affecting his companies. Recent precedent from comparable weekly tweet-count markets shows that unexpected geopolitical events or company-specific crises can drive sudden spikes in his social media engagement, though the current zero probability reflects trader confidence that such disruptions are unlikely during this particular seven-day window.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, 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?
- On Kalshi UK, which mirrors the Polymarket order book at 0% 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 it cost to trade on Kalshi UK?
- Zero. Kalshi UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi UK triggers a quick verification flow that finishes in minutes.
- 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.
Trade Elon Musk # tweets June 2 - June 9, 2026? on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
Trade on Kalshi UK →