Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Market UK) Pick polygram.ink (preferred broker) |
18% | 82% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
18% | 82% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 200-219 | 18% |
| 180-199 | 17% |
| 220-239 | 14% |
| 240-259 | 11% |
| 160-179 | 10% |
| 140-159 | 7% |
| 260-279 | 7% |
| 120-139 | 6% |
| 100-119 | 4% |
| 280-299 | 3% |
| 300-319 | 2% |
| 80-99 | 1% |
| 320-339 | 1% |
| <20 | 0% |
| 20-39 | 0% |
| 40-59 | 0% |
| 60-79 | 0% |
| 340-359 | 0% |
| 360-379 | 0% |
| 380-399 | 0% |
| 400-419 | 0% |
| 420-439 | 0% |
| 440-459 | 0% |
| 460-479 | 0% |
| 480-499 | 0% |
| 500+ | 0% |
Market context
The real-world event driving this market is the count of Elon Musk’s main feed posts, quote posts, and reposts on X between 12:00 PM ET on 7 July and 12:00 PM ET on 14 July 2026. In prediction markets, a YES share pays out if the market resolves in favour of the stated condition (here, a specific post count), while a NO share pays if it does not; both are bets on the outcome, not endorsements of Musk’s activity. With the crowd-implied probability at 0% YES, the market currently expects the post count to fall outside the winning bracket, likely due to Musk’s historically erratic but often high-volume posting behaviour.
Historical patterns suggest Musk’s X activity has surged significantly since late 2024, with over 4,500 posts in November 2024 alone, and recent daily counts ranging from 22 to 74 posts [1][6][9]. This volatility makes a 0% YES probability unusual unless the winning bracket is set extremely high or the market anticipates a temporary lull. Comparable short-term markets, such as the July 4–6, 2026 post count, showed 55% probability for 40–64 tweets, indicating that Musk typically posts frequently even over brief windows [4].
Traders should monitor Musk’s upcoming announcements, particularly his Q2 Company Update streamed live on X on 22 July, which may signal increased activity in the preceding week [5]. Additionally, Musk’s plan to open-source X’s algorithm within seven days, announced in January 2026, could drive engagement spikes as developers and users react to the change [2][7]. Any sudden shifts in his posting frequency, such as those seen on 4 June (74 posts) or 13 June (22 posts), will be critical indicators for this market’s outcome [6][9].
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
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 Prediction Market UK. 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.
- 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 July 7 - July 14, 2026? on Prediction Market UK
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