Elon Musk’s repeated comments on deepening Tesla-SpaceX ties, including at the September All-In Summit, remain the main catalyst sustaining trader interest in a potential merger announcement. The companies continue expanding collaboration on the Terafab semiconductor project, AI training infrastructure, Starlink integration for robotaxis, battery systems, and robotics, with Tesla booking over $1 billion in unrealized gains from its SpaceX stake in Q2 2026. SpaceX President Gwynne Shotwell noted faster-than-expected integration without full consolidation. While no formal talks or timeline have been confirmed and any deal would require proper corporate processes and shareholder approval at Tesla, analysts cite strategic overlap in AI and autonomy as supporting factors. Recent Tesla delivery beats have coincided with joint stock gains, though earlier 2026 deadlines resolved without an announcement.