Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
45% | 55% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
45% | 55% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 40-64 | 45% |
| 65-89 | 30% |
| <40 | 20% |
| 90-114 | 7% |
| 115-139 | 1% |
| 140-164 | 0% |
| 165-189 | 0% |
| 190-214 | 0% |
| 215-239 | 0% |
| 240+ | 0% |
Market context
Polymarket prices Elon Musk’s posts on X over the three-day settlement window at **20% YES**, with the contract settling on the count of main feed posts, quote posts and reposts from 23 July 2026 12:00 PM ET to 25 July 2026 12:00 PM ET. Because trading is done in USDC on Polygon and the market resolves through conditional tokens, the practical question for users is whether his posting pace clears the contract’s threshold before the tracker’s cut-off, not whether the broader platform conversation is busy.
The cleanest read on that 20% is historical cadence: Musk’s output is usually bursty rather than steady, and comparable July-month markets have shown heavy concentration in a relatively wide band rather than a single number. In the wider July 2026 market, the leading bucket is 760-799 at 26%, with 800-839 close behind at 23%, which suggests traders expect substantial posting volume overall even if a short window still looks uncertain.[2] On the separate two-and-a-half-day contract, the current 40-64 range leads at 47%, implying the crowd is leaning towards a moderate but non-trivial burst rather than an extreme posting spree.[1]
What matters over the next 48 hours is any catalyst that could pull Musk back into sustained posting: product announcements, xAI or Tesla-related commentary, political reactions, or live-event coverage that tends to generate rapid reposting and quote-posting. Traders watching the market should also track whether he is active on the main feed specifically, since replies do not count unless they appear as counted main-feed replies in the tracker’s log, and deleted posts still count if they are captured for long enough.[1] A short window like this can reprice quickly if one high-visibility thread starts a chain of reposts and quotes.[1]
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
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.
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 PolyGram. 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.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Elon Musk # tweets July 23 - July 25, 2026? on PolyGram
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