Key Points
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The Cybercab has entered production and begun serving paying rideshare customers.
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Tesla must now prove that autonomous transportation can become a profitable business.
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The company’s valuation provides little protection if commercialization takes longer than expected.
Tesla (NASDAQ: TSLA) has reached a significant milestone in the development of the business that investors have long anticipated.
The Cybercab, Tesla’s self-driving taxi, is no longer merely a concept presented on stage. The company has started offering paying customers in Austin, Texas, rides in autonomous vehicles that have no steering wheel or pedals.
Image source: Getty Images.
Tesla is turning long-standing promises into products
For years, many of Tesla’s most compelling growth opportunities have remained ahead of the company. Robotaxis were always coming, as were the Optimus humanoid robot and transformative artificial intelligence products.
Some of those initiatives are now becoming tangible. In its second-quarter earnings report, Tesla said it had expanded Robotaxi service to seven U.S. markets and begun producing the Cybercab. The company also expects Optimus production to start soon.
These developments represent more than projections. They are early commercial products and businesses, although they remain far from proving themselves at scale.
If autonomous transportation becomes a substantial market and Tesla secures a meaningful share, today’s electric vehicle operations could become the foundation for a much larger enterprise. Optimus presents a similar opportunity: Humanoid robots capable of performing useful work widely could create a market that is difficult to estimate today.
Nevertheless, potential and earnings are not the same thing.
The Cybercab faces a critical test
The key question for Tesla investors is no longer simply whether a Cybercab can operate without a human driver. The more important issue is whether Tesla can transform autonomous transportation into a business that earns strong returns.
The rollout remains limited. Soon after Tesla began carrying passengers in Cybercabs, the National Highway Traffic Safety Administration opened an audit examining the company’s self-certification process and whether the unconventional vehicle meets federal safety standards.
That scrutiny does not mean the Cybercab is destined to fail. It does, however, show that commercialization will involve more than manufacturing additional electric vehicles. Tesla will need to overcome regulatory, safety, insurance, customer-adoption, fleet-management and economic challenges.
Tesla has also indicated that scaling Robotaxi operations quickly is less important than scaling them safely. As a result, the next stage could advance more slowly than some investors hope.
Tesla is investing heavily for future growth
There is another reason not to pursue the stock aggressively. Tesla is increasing spending well before its largest new businesses reach meaningful scale.
The company expects capital expenditures to exceed $25 billion in 2026. It also expects spending to continue rising over the following two to three years as it expands its Robotaxi fleet, Optimus production, semiconductor capacity, artificial intelligence computing resources and solar-power-system manufacturing.
The financial effects are already visible. Tesla reported negative free cash flow of $1.1 billion in the second quarter.
That outflow does not currently pose an immediate balance-sheet threat. Tesla held approximately $44 billion in cash and investments at the end of the quarter and carried almost no debt.
In short, Tesla can afford substantial investment, but investors have limited evidence that the spending will eventually produce attractive shareholder returns.
Valuation leaves little room for disappointment
With a market value of approximately $1.1 trillion at the time of writing and a price-to-sales ratio of 12.1, Tesla is not valued like a conventional automaker. Its share price reflects expectations for substantially greater growth.
For comparison, General Motors trades at a price-to-sales ratio of 0.5.
Investors are already assigning considerable value to Tesla’s potential businesses in autonomous transportation, robotics, artificial intelligence, energy and software. None of those operations currently generates revenue or profit on a scale capable of supporting the company’s full valuation.
That uncertainty is what makes Tesla such a challenging investment. If management’s vision for Robotaxis and Optimus proves accurate, today’s share price may one day appear reasonable. If its estimates of either the timing or size of these opportunities are even modestly wrong, however, the stock could face pressure.
Tesla does not have to fail for investors to lose money. The shares could decline if the company succeeds, but does so more slowly than the market expects.
Should investors buy Tesla stock in September 2026?
Tesla looks more like a stock to monitor than one to chase.
The company has made genuine progress. Cybercabs are carrying paying passengers, Robotaxi service is expanding and Optimus is moving toward production. These achievements make Tesla’s long-term strategy more credible than it was several years ago.
What remains unproven is whether Tesla can produce the enormous profits needed to justify its valuation. That distinction should remain central to any investment decision.
Ultimately, investors buying Tesla today are paying a premium for a future that is becoming more concrete but has not yet fully arrived.
