Shares of Tesla fell to a one-month low as investors reacted to growing speculation that Elon Musk could eventually merge Tesla and SpaceX following SpaceX's highly anticipated initial public offering. The discussion has intensified as SpaceX prepares for what could become one of the largest IPOs in history, with the company reportedly seeking a valuation of around $1.8 trillion and demand far exceeding available shares.

The possibility of a merger is attracting increasing attention because Elon Musk remains the largest shareholder of both companies. Tesla and SpaceX already share strategic connections through artificial intelligence development, computing infrastructure, semiconductor technology, and supply-chain relationships. Tesla currently owns millions of SpaceX shares, while SpaceX has purchased Tesla energy storage systems and vehicles, creating a growing business relationship between the two companies.

Supporters of a potential merger argue that combining Tesla and SpaceX could create one of the world's most powerful technology conglomerates. Tesla would contribute its massive fleet of connected vehicles, autonomous driving technology, robotics projects, and energy business. SpaceX would add its satellite network, launch capabilities, advanced engineering expertise, and growing communications infrastructure through Starlink. Together, the companies could strengthen their positions in artificial intelligence, data processing, and next-generation technology development.

Analysts at Wolfe Research believe the merger concept has moved into mainstream investor discussions. Some investors now view the possibility of a future Tesla-SpaceX combination as one of the main reasons to own Tesla shares. The theory is that a combined company would possess unmatched access to real-world data, AI training resources, advanced manufacturing capabilities, and global connectivity through Starlink.

Morningstar also sees strategic logic behind a merger. The firm notes that Tesla and SpaceX are becoming increasingly interconnected through AI initiatives, chip development, supply-chain partnerships, and infrastructure investments. Tesla's future robotaxi network could potentially benefit from Starlink's global internet coverage and AI systems developed across Musk's various companies. A merger could also make it easier to move talent, technology, and resources between businesses.

One of the most interesting debates centers on how ownership would be divided in a combined company. While SpaceX may achieve a valuation higher than Tesla's current market value after its IPO, some analysts believe Tesla shareholders could still receive a majority stake. Morningstar estimates that Tesla investors could potentially own as much as 66% of a combined Tesla-SpaceX entity, with SpaceX investors holding the remaining 34%. This estimate is based on the firm's own valuation assumptions and future growth projections.

Despite the excitement, significant challenges remain. SpaceX shareholders may oppose a merger if they believe the company deserves a higher valuation. Regulatory concerns could also arise because SpaceX is a major government and defense contractor, while Tesla maintains extensive operations in China. Additionally, investors on both sides may worry about ownership dilution, governance structures, and the complexity of integrating two massive organizations.

Market prediction platforms currently assign meaningful probabilities to a future merger. Some prediction markets estimate roughly a 40% to 50% chance that Tesla and SpaceX could combine within the next few years. However, many analysts believe any transaction would likely occur only after SpaceX has spent time as a publicly traded company and established its market value independently.

For now, the merger remains speculative, but the upcoming SpaceX IPO is expected to keep the discussion alive. As Musk continues to build connections among his companies through AI, infrastructure, and technology development, investors will closely watch whether Tesla and SpaceX eventually become part of a larger vision that brings his most important businesses under one corporate umbrella.