Tesla shares slide to a one-month low as Wall Street weighs SpaceX merger speculation

Tesla shares fell to a one-month low as investors grew uneasy about rapidly circulating talk of a potential merger involving Elon Musk’s SpaceX, according to market reporting cited by Stocktwits. The stock closed Tuesday down 3% at $396.68, with additional weakness in extended trading.

The renewed interest in a Tesla-SpaceX tie-up appears linked to expectations that SpaceX is preparing for a highly anticipated public offering. Traders have been watching odds and headlines ahead of Friday’s “blockbuster” IPO discussion, with commentary suggesting demand could far exceed the shares available, and with SpaceX’s latest S-1 filing indicating Tesla’s footprint in the company’s disclosure.

The speculation has been reinforced by the structural overlap between the two businesses, analysts say. Musk is described as the largest shareholder in both companies, fueling the idea that his interests across automotive, AI, and space could eventually be consolidated. The reporting also states Tesla owns about 19 million SpaceX shares, and that the companies already work together on AI tools, chip development, and computing infrastructure.

Morningstar’s view, as summarized in the market post, is that Tesla could be the potential winner in any combination, estimating a 66%-34% split between Tesla and SpaceX. The same commentary frames the companies’ relationship as increasingly “intertwined” through AI and related technology efforts, including chips and infrastructure projects, which could strengthen Tesla’s bargaining position if a deal moves from speculation to negotiation.

Wolfe Research, also cited in the reporting, described the merger thesis as having “moved into the mainstream.” The rationale offered in the post includes Musk’s voting control, potential AI synergies, and the possibility of Tesla accessing a larger capital base through SpaceX’s public-market footprint.

At the same time, the discussion included a set of risks that could complicate any path to a transaction. The post highlighted concerns about shareholder opposition and regulatory scrutiny, pointing specifically to Tesla’s China exposure as a factor that could attract more intense review if a major corporate combination were proposed.

Market pricing tools have reflected the debate. The reporting cited Kalshi traders placing a 50% chance of a Tesla-SpaceX merger before May 2027, while Polymarket odds were described at 43% before the end of 2026, underscoring that investors are not aligned on timing or certainty.

For investors and observers, the key uncertainty is not whether the companies are already connected, but whether those ties could be translated into a transaction that satisfies legal, regulatory, and shareholder requirements. The post does not describe any formal offer, board process, or regulatory filing from Tesla indicating that a deal is under active consideration. Until a company statement or a filing provides clearer evidence, much of the market movement may remain a function of rumor and expectations rather than confirmed steps.