Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Tax UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Tax UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Tax UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Tax UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Tax UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Tax 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 Tax UK.
Active sub-markets
Market context
SpaceX's private market valuation, tracked via Nasdaq Private Market's daily NPM Price feed, will either reach or exceed a specified threshold by 30 June 2026, or it will not. The settlement mechanism relies on NPM's published valuations for trading days only, with a grace period extending to 4 July 2026 should data gaps occur. This structure mirrors how late-stage private company valuations are typically benchmarked in institutional portfolios, though the daily publication cadence introduces timing sensitivity absent from traditional quarterly funding rounds.
The 100% implied probability reflects SpaceX's trajectory since its last major valuation event. In September 2024, the company raised capital at a $210 billion valuation; prior rounds in 2022 stood at $137 billion. Comparable aerospace and defence contractors—Axiom Space, Relativity Space, and Rocket Lab—have seen valuations expand 40–80% over similar two-year windows, though SpaceX's revenue scale and government contract base (NASA, DoD) position it differently. Historical precedent suggests private valuations in this tier rarely contract absent operational failure or market-wide credit shock.
Traders should monitor Starship test flight outcomes, which directly influence investor appetite for SpaceX equity. The Federal Aviation Administration's licensing decisions for orbital launches and the company's Starshield defence contracts represent near-term catalysts. Additionally, any secondary market transactions reported by NPM or insider disclosures filed under SEC rules can shift valuation marks. Currency and tax treatment varies: UK residents face standard capital gains tax on gains; German traders should note GlüStV classification of prediction markets as financial instruments, whilst US CFTC reach over offshore platforms remains contested. Markets with settlement values under $1,500 typically operate without KYC requirements on certain platforms, though this market's size may exceed that threshold.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.
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
- 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 it cost to trade on Polymarket Tax UK?
- Zero. Polymarket Tax 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 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Tax UK triggers a quick verification flow that finishes in 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.
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