Elon Musk has officially reclaimed trillionaire status following a significant surge in SpaceX ($SPCX) stock. The rally in the private aerospace company's shares has pushed Musk's net worth back above the $1 trillion threshold. This milestone marks Musk's return to the exclusive trillionaire club, driven entirely by the appreciation of his SpaceX holdings. The development highlights the substantial impact of private market valuations on individual wealth rankings in the current market environment.