Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
19% | 81% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
19% | 81% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 180-199 | 19% |
| 200-219 | 18% |
| 160-179 | 14% |
| 220-239 | 14% |
| 240-259 | 11% |
| 140-159 | 8% |
| 260-279 | 7% |
| 120-139 | 3% |
| 280-299 | 3% |
| 300-319 | 2% |
| 100-119 | 1% |
| 320-339 | 1% |
| 340-359 | 1% |
| 360-379 | 1% |
| <20 | 0% |
| 20-39 | 0% |
| 40-59 | 0% |
| 60-79 | 0% |
| 80-99 | 0% |
| 380-399 | 0% |
| 400-419 | 0% |
| 420-439 | 0% |
| 440-459 | 0% |
| 460-479 | 0% |
| 480-499 | 0% |
| 500+ | 0% |
Market context
Elon Musk’s posting pace on X remains the key variable, and the latest tracker snapshot shows **0 tweets** so far for the August 11–18 window, with the market still open and a live tracker already set up for the exact settlement rules.[1] That means there has been no fresh activity yet to reset expectations, so the market is still leaning on his established posting style rather than any event-specific burst.
For framing, Musk’s recent history on X has been highly variable, which is why count markets on him often price wide tails rather than a single central estimate. The monthly August 2026 market currently shows a clustered distribution with the top outcome at **1000+** and several other high-count bands trading meaningfully, while the immediately prior week-long market for August 4–11 has been described as a tight, fragmented book rather than a low-volume one.[11][10] Separate coverage also notes that Musk can generate dozens of posts in a single day, with one recent August example counting 38 posts, which reinforces the risk of a sudden spike if he engages heavily.[13]
The main catalysts over the next few days are schedule-driven rather than date-driven: product launches, Tesla or SpaceX announcements, policy commentary, and rapid responses to news all tend to lift his posting rate. A fresh Los Angeles Times report on 7 August about DOGE overstating savings is the sort of item that could provoke comment, especially given Musk’s habit of posting on political and administrative controversies.[14] Traders should also watch for any major X product or company news, since the market counts main-feed posts, reposts and quote posts, while replies are excluded unless they appear on the main feed and are captured by the tracker.[2][1]
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 Prediction Today, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
UK Frequently Asked Questions
- 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 Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade Elon Musk # tweets August 11 - August 18, 2026? on Prediction Today
Live order book, 0% fees, USDC settlement in seconds.
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