SpaceX or OpenAI higher IPO Market Cap?
1.5 pts (24h)ExchangeOne-OffAISpaceCorporate ActionsEquitiesTechBusiness & Corporate1y
PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedSelected book midpoint
SpaceX · —
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Stored reference
SpaceX 78%
SpaceX 78%Market quality
28 / 100
Low quality24h Volume
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Liquidity
$329.9
Low liquidityOpen interest
$7.4K
Bid / Ask
— / —
SpaceXSpread
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Comments
5
7d Change
+2.4 pts
Market data
Updated 14 minutes ago
Jan 30, 26, 11:19 PM UTCJan 1, 28, 4:59 AM UTC
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Minimum order (shares):
- 5
- Tick size:
- 0.1 percentage points
- Fees:
- Yes
Top holders
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Market depth · SpaceX
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
Largest IPO by market cap in 2027?
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Manifold MarketsWhat will OpenAI's IPO valuation be?
PolymarketOpenAI IPO Closing Market Cap
PolymarketRules
This market will resolve to “SpaceX” if the official closing price for SpaceX’s market capitalization on its first trading day is above the official closing price for OpenAI’s market capitalization on its first trading day.
- This market will resolve to “OpenAI” if the official closing price for OpenAI’s market capitalization on its first trading day is above the official closing price for SpaceX’s market capitalization on its first trading day.
- This market will resolve to the company that completes an Initial Public Offering (IPO) by December 31, 2027, 11:59 PM ET, if the other company does not complete an IPO within the market timeframe.
- This market will resolve to the IPOed company as soon as it becomes impossible for the other company to complete an IPO within the market timeframe, including due to acquisition, merger, or absorption by an entity that is already publicly traded.
- This market will resolve 50-50 if: - Neither IPO occurs by December 31, 2027, 11:59 PM ET. - Both SpaceX and OpenAI complete an IPO within this market's timeframe, and their IPO closing market capitalizations are exactly equal. - Both companies become unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded.
- Market capitalization is defined as the total number of outstanding shares multiplied by the closing share price on the first trading day.
