Polymarket traders price SpaceX at 75% odds of closing first day above IPO price
Polymarket traders are pricing a 75% probability that SpaceX ($SPCX) closes its first trading day above its IPO price, according to data from the blockchain-based prediction market reported June 4. A separate June 4 post put the odds at 64%. The pricing reflects market sentiment on Elon Musk's space venture ahead of its highly anticipated public debut. Polymarket contracts on the IPO include an 86% probability of SpaceX becoming the largest satellite operator and wagers that the company could achieve a market capitalization exceeding $4 trillion by the close of its first trading day, which would value it above Microsoft. No trading volume, open interest, or position-level transparency figures were disclosed for any of the contracts.
Kalshi must now match Polymarket's SpaceX pricing data or cede the pre-IPO vertical to its rival's Nasdaq-backed partnership. Any persistent gap on SpaceX will cost Kalshi the arbitrage flow that cements benchmark pricing for institutional desks sizing IPO bets.
Polymarket's SpaceX pricing joins its pre-IPO contracts and Kalshi's rival pre-IPO vertical in a developing market-structure fight, with both platforms running divergent contracts on OpenAI, Anthropic, and Musk ventures without disclosed volume or open interest.