According to @KobeissiLetter, citing the Wall Street Journal, SpaceX has begun a secondary share sale valuing the company at about $800 billion (WSJ via @KobeissiLetter). At this level, WSJ reports SpaceX would be the most valuable private company globally and exceed OpenAI’s private valuation (WSJ via @KobeissiLetter). The update was publicly relayed by The Kobeissi Letter on December 5, 2025, summarizing the WSJ report for market participants (The Kobeissi Letter).