Tesla and SpaceX stock movements dominate trader sentiment for Musk’s October 31 net worth, with his roughly 11% Tesla stake and large SpaceX holding driving over 98% of wealth. Recent Cybercab fleet expansion in Austin, strong Q3 deliveries, and Grok integration have lifted Tesla shares, while SpaceX volatility post-IPO and analyst commentary create swings that keep the $900B–$1T and $1T–$1.1T bins nearly tied. Regulatory scrutiny from NHTSA on Cybercab safety and upcoming expansion signals add uncertainty in the final weeks, underscoring how short-term equity swings and AI/robotaxi milestones shape the closely contested market-implied odds.