As of May 28, 2026, Tesla’s stock price has risen 15.39% in May, closing at $440.36 on May 27. During the day, it hit a high of $445.60, and the increase over the past five trading days reached 5.54%. Based on the stock’s intraday low of $337.24 in early April 2026, the shares have rebounded by more than 30%. Trading volume on May 27 was $19.606 billion, ranking third among US stocks that day, with volume exceeding 44 million shares.
Tesla’s market value has recovered to around $1.38 trillion. Despite still recording about a 2% decline year-to-date, given adverse factors such as negative brand sentiment early in the year and lowered delivery expectations, the strong rebound in May suggests the market’s sentiment is undergoing a significant repair.
Is this just a technical rebound? Or is it the combined effect of fundamental factors and external catalysts? To answer this question, we need to break down the multiple logics driving this round of gains one by one.
Upward Drivers: Single Catalyst or a Stack of Multiple Factors?
This rally cannot be simply attributed to a single event. Behind it is a combined force of improving fundamentals, a technical breakthrough, and external expectation-driven momentum.
On the fundamentals side, Tesla’s first-quarter 2026 earnings report delivered positive signals. First-quarter revenue was $22.387 billion, up 15.78% year over year, and net profit was $491 million, up 16.90%. The results validate that while the company’s auto gross margin has remained resilient, its energy business has begun taking on the role of a growth engine.
On the technological progress front, the expansion of full self-driving features has injected confidence into the market. In early May, Tesla officially expanded FSD (Supervised) to Lithuania, making it the second EU country to adopt the system after the Netherlands. Ongoing regulatory breakthroughs reinforced the market’s confidence in the pace of commercial deployment of autonomous driving.
On the technical hardware side, reports say Tesla has completed the design of its latest custom AI chips. Combined with catalysts such as upgrades to ratings from institutions like UBS, this further pushed the stock higher. Regarding analyst coverage, investment banks such as Canaccord raised their price targets, acknowledging Tesla’s strategic positioning and investments across semiconductors, battery production, and the entire industrial chain, and believing that large-scale investment effectively reduces supply-chain risks. Bank of America also set its target price at $460, emphasizing the cost advantages of Tesla’s pure-vision approach during the scaling phase of autonomous driving.
However, most of the factors above are a continuation of existing logic. What the market needs is an incremental catalyst capable of breaking through the narrative bottleneck. That “missing piece” is the SpaceX merger rumor.
SpaceX and Tesla Merger Rumor: Where Did It Come From?
The source of the merger rumor can be traced back to May 26, 2026. At that time, CNBC cited information from an insider saying that Musk had discussed the possibility of a merger between SpaceX and Tesla with colleagues.
Notably, this rumor was not groundless. A current Tesla employee confirmed that the merger transaction has been openly discussed within the company, and many employees have long expected that such a deal would ultimately happen. Looking at the timing, SpaceX is preparing for an IPO of unprecedented scale—its valuation is expected to be between $1.75 trillion and $2 trillion, with the stock ticker SPCX, and the earliest it could begin trading on Nasdaq is June 12. If the IPO succeeds, Musk would end up leading two publicly listed companies ranked among the US top ten by market value. At that point, further capital integration between Tesla and SpaceX would be more operationally feasible.
After SpaceX’s registration statement was released, Wedbush analyst Dan Ives set the merger probability at 80% or higher, predicting the merger could be completed in the first half of 2027. Meanwhile, the prediction platform Kalshi assigns a probability of 52% to a merger occurring before May 1, 2027.
The rumor gained rapid momentum largely because in the past few months, merger talk had remained only at the level of market speculation. This time, details involving Musk himself being part of the discussions were confirmed for the first time.
Artificial Intelligence and Compute-Sharing: The Business Logic Behind the Merger
From a business-logic perspective, the merger between SpaceX and Tesla is not without rationale. The two companies are already deeply intertwined across personnel, capital, and business.
On the personnel front, Musk, his brother Kimbal, and venture investor Ira Ehrenpreis all serve on the boards of both companies. Several of SpaceX’s directors previously also served on Tesla’s board. Charles Kuman also serves simultaneously as Vice President of Materials Engineering at both companies.
On the capital front, in January 2026 Tesla invested $2 billion in xAI. Later, xAI merged with SpaceX and was renamed SpaceXAI. Tesla’s held shares were correspondingly converted into ownership of SpaceX—effectively the first formal capital-level integration between Tesla and SpaceX.
On the business side, synergies are becoming increasingly evident. In 2024 and 2025, SpaceX purchased $697 million worth of Tesla’s Megapack energy storage systems to power the Colossus supercomputing cluster in Memphis, Tennessee. In 2025 it also purchased $131 million worth of Tesla Cybertruck. The term “Tesla” appears 87 times in SpaceX’s IPO prospectus—this frequency alone indicates the depth of business binding between the two companies.
On the technology front, both companies place artificial intelligence at the core of their strategic priorities. In SpaceX’s first-quarter $10.1 billion in capital expenditures, more than three-quarters are AI-related. Tesla’s 2026 capital expenditures are expected to exceed $20 billion, mainly for AI-related infrastructure. Their technical challenges are highly complementary: Tesla needs to run AI systems in moving vehicles, constrained by power, cooling, and latency; SpaceX needs to overcome radiation in-flight computing, thermal cycling, and launch quality constraints. If the two companies merge, AI compute, talent, and data assets could be integrated into a unified allocation.
As early as March, analyst James Picarello at Fapiao Bank clearly pointed out that a series of projects jointly pushed forward—such as the Terafab semiconductor plant—“almost all imply Musk’s grand vision to merge the three major entities: SpaceX, xAI, and Tesla.” Tesla’s long-term bull Ross Gerber, meanwhile, believes that after a merger, SpaceX is more likely to control Tesla rather than the two firms merging equally—similar to the prior xAI deal to acquire X for $33 billion. Given that SpaceX is set to list with a valuation around $2 trillion, far above Tesla’s current $1.65 trillion market cap, this inference is not without basis.
Merger Hurdles: Three Sets of Challenges—Valuation, Governance, and Regulation
However, between rumor and reality there are still multiple material challenges.
First is the structural problem caused by differences in valuation. Tesla, as a public company, has a clear publicly disclosed market value. SpaceX’s IPO valuation range is largely determined, but final pricing depends on institutional roadshows and subscription results. Both companies operate at the trillion-dollar scale, and any M&A transaction would face extremely complex issues around pricing exchange ratios. Which company serves as the continuing parent entity and how to balance allocation of shareholder rights between the two sides still lacks a clear framework.
Second is uncertainty in corporate governance. Tesla has a large public shareholder base, while SpaceX is currently in a special period just before its IPO. If the merger involves significant restructuring, it would require multiple rounds of approvals from both companies’ boards and shareholders. Given that the post-merger entity could create a super entity with total market value exceeding $3 trillion, whether regulators would conduct additional scrutiny from an antitrust or national security perspective cannot be ignored. Legal experts note that a large portion of SpaceX’s business involves US government contracts, and the merger could also trigger shareholder lawsuit risk. Legal challenges around the merger price are another major variable.
In addition, the rumor itself has not yet received any official confirmation from either side. Neither Tesla nor SpaceX has issued a public statement regarding merger discussions. Before a formal announcement, the market’s pricing of the rumor is built on highly uncertain expectations, and any negative official response could put pressure on the current stock price.
How the Merger Rumor Could Reshape the Crypto Asset Landscape
The merger rumor not only directly affects Tesla’s stock and the broader US tech sector; it also triggers ripple effects in the crypto asset space. For the cryptocurrency market, the transmission path of this news has multiple dimensions.
Bitcoin is the most directly related asset. If SpaceX and Tesla successfully merge, the post-merger new entity would combine the companies’ Bitcoin holdings. Tesla’s latest disclosed holdings are 11,509 BTC, which at current market prices is about $862 million. According to estimates from multiple media outlets, if the roughly 18,712 BTC held by SpaceX are included in the combined financial statements, the new entity’s total holdings would reach 30,221 BTC, valued at about $3.3 billion—making it the world’s fifth-largest listed corporate holder of Bitcoin.
From a market-structure perspective, this consolidation would significantly change the ownership pattern of institutional-grade digital assets. Currently, the top four corporate Bitcoin holders are all listed companies. SpaceX, as an unlisted private company, has long lacked strict financial audit backing for its on-chain holdings. Once the merger is completed, SpaceX’s Bitcoin holdings would be included on a listed company’s balance sheet, subject to more transparent and standardized financial disclosures. This could objectively improve compliance standards for institutional-level Bitcoin holdings and may create a demonstration effect within the global corporate sector.
Additionally, Musk’s influence in the crypto space also deserves attention. He has long promoted Dogecoin (DOGE) and frequently mentioned it on social media, and the asset has shown significant volatility due to the “Musk effect.” In early May, DOGE was trading around $0.1, down more than 85% from the 2025 high of $0.7. The SpaceX IPO process and merger rumor in late May helped drive a rebound in DOGE sentiment, and some market observers have begun discussing the possibility of real-world payment use cases.
That said, it’s important to note that before the rumor is officially confirmed, market reactions in crypto are more reflective of short-term trading sentiment rather than a structural shift in long-term capital flows. The main macro pressure facing Bitcoin traders comes from repeated US inflation and interest-rate expectation swings. During May 2026, CME data showed that the market’s probability of another rate hike within the year rose to about 39%. Bitcoin has been fluctuating around the $74,000 to $80,000 range, and overall remains in a weekly adjustment channel. In such a macro environment, the direction of the crypto market is determined more by the interest-rate cycle and liquidity conditions. At present, the merger rumor plays the role of a sentiment catalyst rather than a decisive factor for price trends.
Outlook
Tesla’s stock price rose more than 15% in May and moved above the $440 level, driven by multiple layers of factors. On the fundamentals side, first-quarter performance validated the company’s earnings resilience. On the technology side, FSD’s regulatory-compliant rollout in Europe and progress on its self-developed AI chips provided new narrative material. On the expectations side, merger discussions prompted by the upcoming SpaceX IPO provided a rare incremental catalyst for Tesla.
From the merger logic perspective, the high interdependence between SpaceX and Tesla across personnel, capital, business, and technology provides business rationale for a merger. However, valuation differences, the complexity of corporate governance, and the fact that there is still no official confirmation determine that the merger remains in a highly uncertain phase of discussion. On legal and regulatory grounds, whether it is antitrust review or national security assessment, both are substantive obstacles that cannot be bypassed in pushing the deal forward.
In the crypto asset space, the merger rumor could generate an important change in institutional-grade Bitcoin holding structure and continue to validate the market narrative of “the continuation of Musk’s influence on crypto assets,” but short-term effects are still mainly sentiment-driven, and whether there will be trend-level impact depends on substantive fundamental changes.
Looking ahead, whether Tesla’s stock can maintain its current level hinges on three factors: the real progress of FSD and Robotaxi commercialization, the actual impact on cash flow from capital expenditures exceeding $20 billion, and whether capital-integration expectations after the SpaceX IPO can be further realized into concrete actions. Given Tesla’s current P/E ratio is still around 367x, the market assigns an extremely high weight to pricing of long-term growth expectations. Any narrative shifts that fail to materialize could trigger a fairly sharp repricing of valuation.
FAQ
Q1: What are the main reasons for Tesla’s 15% stock rise in May?
A: The key drivers include first-quarter earnings coming in above expectations, a regulatory breakthrough for FSD in the European market, progress on self-developed AI chips, and market expectations of a Tesla–SpaceX merger. Among them, the merger rumor gained higher attention because SpaceX is nearing its IPO, making it an important catalyst for the recent rally.
Q2: How likely is a merger between SpaceX and Tesla?
A: As of late May 2026, multiple sources have confirmed the merger rumor, and internal employees say there were open discussions within the company. The probability given by prediction platforms is roughly between 45% and 52%. However, the deal still faces multiple obstacles, including valuation differences, corporate governance issues, and regulatory review, and it has not yet been officially confirmed by either side. At present, it should be viewed as a highly uncertain prospect.
Q3: If the merger happens, what impact would it have on the crypto market?
A: If the merger is completed, the new entity would consolidate Tesla’s and SpaceX’s Bitcoin holdings—totaling approximately 30,221 BTC, valued at about $3.3 billion—making it the world’s fifth-largest listed corporate Bitcoin holder. This could improve compliance standards for institutional-grade Bitcoin holdings and provide longer-term support for market sentiment. In the short term, the impact would mostly show up as sentiment transmission.
Q4: What variables should investors pay attention to right now in Tesla and the crypto market?
A: Investors should focus on Tesla’s progress in FSD/Robotaxi commercialization, the impact of capital expenditures exceeding $20 billion on cash flow, specific capital-operation moves after the SpaceX IPO, and the macro pressure on risk assets from US inflation data and interest-rate policy. Until the merger rumor is officially confirmed, market pricing is based on highly uncertain expectations, so investors should remain alert.
