Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
54% | 46% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
54% | 46% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 40-64 | 54% |
| 65-89 | 24% |
| <40 | 20% |
| 90-114 | 4% |
| 115-139 | 1% |
| 140-164 | 0% |
| 165-189 | 0% |
| 190-214 | 0% |
| 215-239 | 0% |
| 240+ | 0% |
Market context
The settlement window captures Elon Musk's posting activity across a 48-hour period from 13–15 August 2026. Only primary feed posts, quote posts and reposts count; replies do not, with the exception of replies appearing directly on the main feed timeline. The tracker requires approximately five minutes to capture posts before deletion, meaning briefly removed content still registers toward the total. The current 20% implied probability suggests the crowd expects fewer than the threshold number of posts during this specific window.
Musk's historical posting patterns show significant variance depending on external events and product cycles. During periods of active Tesla earnings announcements or SpaceX launches, his daily post counts have exceeded 15–20 items; during quieter intervals, he has posted fewer than five times daily. August 2026 falls outside any announced major corporate event window based on current Tesla and SpaceX calendars, which typically cluster announcements around quarterly earnings (late April, late July, late October, late January) and scheduled Starship test flights. The 20% probability reflects expectations of below-average activity for a two-day span absent specific catalysts.
Traders should monitor whether any unscheduled announcements—regulatory filings, product reveals, or geopolitical developments—occur in early August 2026, as these have historically triggered elevated posting frequency. Comparison across prediction markets shows limited divergence on this contract; Polymarket and Kalshi both reflect similar probability ranges, suggesting consensus around the baseline forecast. The settlement mechanism's strict definition of countable posts (excluding replies except those on main feed) creates a narrower resolution band than some earlier Musk-activity markets, potentially explaining the relatively low implied probability.
Methodology
This page reviews Elon Musk # tweets August 13 - August 15, 2026? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi vs Polymarket, which mirrors the Polymarket order book at 0% fees.
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
- 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.
- 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 August 13 - August 15, 2026? on Kalshi vs Polymarket
Live order book, 0% fees, USDC settlement in seconds.
Open live market →