Trader consensus on Polymarket gives an 81.5% implied probability to Elon Musk reaching trillionaire status before 2027, driven primarily by SpaceX's explosive valuation surge to $1.25 trillion following its February 2026 merger with xAI, which integrates Grok AI capabilities into Starlink and Starship operations. Musk's ~42% stake in the combined entity now anchors over half his $826 billion net worth (as of May 15), with Tesla's ongoing advances in Full Self-Driving software and Optimus humanoid robots supporting steady stock gains. Key catalyst: SpaceX's confidential IPO filing targeting a $1.75 trillion valuation by June, potentially unlocking billions in liquidity and re-rating his holdings amid rocket reusability milestones and Starlink subscriber growth to 10 million. Regulatory approvals and market volatility remain risks, but skin-in-the-game bettors see minimal barriers to crossing $1 trillion by year-end.