Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket UK Pick polygram.ink |
3% | 97% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket UK → |
Polymarket polymarket.com |
3% | 97% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket 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 Polymarket UK.
Active sub-markets
| $1.0T-$1.5T | 3% YES | 97% NO |
| $3.0T-$3.5T | 14% YES | 86% NO |
| $3.5T+ | 23% YES | 77% NO |
| <$1.0T | 1% YES | 99% NO |
| $2.5T-$3.0T | 27% YES | 73% NO |
| $2.0T-$2.5T | 18% YES | 83% NO |
Market context
SpaceX's path to public markets remains one of the most closely watched IPO prospects in aerospace and defence. The company, valued at approximately $180 billion in its most recent private funding round in 2024, has never disclosed a formal IPO timeline, though Elon Musk has periodically suggested the possibility. The 3% probability reflected in USDC-denominated conditional tokens on Polygon suggests traders assign minimal likelihood to an IPO occurring and closing within a single calendar month by mid-2026—a compressed window that requires both announcement and execution within roughly 30 trading days.
Historical precedent offers limited guidance. Recent aerospace IPOs like Axiom Space or Relativity Space pursued SPAC mergers rather than traditional offerings, whilst established defence contractors like Northrop Grumman and Lockheed Martin completed their IPOs decades ago under different regulatory and market conditions. The SpaceX case differs materially: the company remains privately held with concentrated ownership, generates substantial revenue from government contracts and Starlink, and faces regulatory scrutiny around national security. Traditional IPO timelines for companies of comparable scale typically span 6–12 months from formal filing to market debut.
Traders monitoring this contract should track announcements regarding SpaceX's financial disclosures, any formal SEC filings, and statements from Musk or company leadership on public market intentions. Recent focus has centred on Starlink's potential as a separate public entity, which could influence SpaceX's own IPO calculus. Geopolitical developments affecting US space policy and defence spending, alongside broader equity market conditions, will shape both feasibility and timing of any offering.
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 Polymarket UK, which mirrors the Polymarket order book directly.
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?
- On Polymarket 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'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 it cost to trade on Polymarket UK?
- Zero. Polymarket UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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 SpaceX Closing Market Cap End of IPO Month on Polymarket UK
Live order book, 0% fees, USDC settlement in seconds.
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