Recent SpaceX and Tesla stock movements, which together comprise the bulk of Elon Musk’s holdings, position the $900 billion to $1 trillion range as the leading outcome for his October 31 net worth. Strong SpaceX third-quarter results with 161 percent revenue growth and profitability lifted shares sharply in mid-October, briefly restoring trillionaire status, while Tesla’s flat revenue and delayed unsupervised Full Self-Driving and Optimus timelines introduced offsetting pressure. Merger discussions between the companies add a near-term catalyst that could accelerate vesting or unlock synergies in autonomous vehicle and artificial intelligence development. With only eight trading days left and historical volatility in both equities, trader consensus reflects a narrow window where modest gains or losses keep the valuation clustered near current levels around $989 billion.