Is this an unmissable opportunity to buy Tesla stock?

Tesla stock appears to be nearing a pivotal moment as its autonomous ambitions either become reality or fail to impress.

| More on:

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

4 Teslas in a parking lot at a charger station

Image source: Tesla

Tesla (NASDAQ:TSLA) stock is approaching a critical juncture as its long-promised autonomous driving ambitions finally face real-world tests. With the first supervised robotaxi fleet now launched in Austin, and broader autonomous rollouts on the horizon, investors are weighing whether this is a rare entry point or a moment to stay clear.

Self-driving developments

Tesla’s June 2025 debut of a driverless Model Y fleet in Austin represents a milestone for its Full Self-Driving (FSD) vision. The company is betting that robotaxis and AI-driven mobility will become core revenue streams. Management hopes to hit $75bn from robotaxi revenue by 2030. 

However, the initial rollout is limited. A dozen cars, in a single city, with human supervision and hand-picked passengers. Scaling to millions of vehicles, as CEO Elon Musk envisions, will require overcoming significant regulatory, technical, and competitive hurdles. It may prove to be a long process.

Questioning the valuation

Despite the technological promise, Tesla’s recent fortunes haven’t been great. Passenger EV sales — which still make up 72% of revenue — are declining, dragging down overall results. In Q1 2025, revenue fell 9% and GAAP earnings plunged 71% year on year. This has contributed to Tesla’s extreme valuation.

Tesla’s price-to-earnings (P/E) ratio is not only far above the consumer discretionary sector but also dwarfs tech giants like Nvidia, Microsoft, and Apple, which average a P/E of 35.4. For Tesla’s P/E to align with these peers, its stock would need to drop by over 70%.

MetricTesla (TTM)Sector median% Diff. to sector
P/E (Non-GAAP)132.9516.03+729%
P/E (GAAP)170.3919.58+770%
Price-to-sales9.970.98+914%
Price-to-book12.852.14+501%

If autonomy delivers and if it doesn’t

Bulls argue that if Tesla’s FSD and robotaxi initiatives succeed — achieving mass adoption and regulatory approval — the current valuation could look cheap in hindsight. Coupled with expansion into energy and AI, Tesla could indeed transform into a broader tech conglomerate, justifying its premium.

However, sceptics point to fierce competition (notably from Waymo and Chinese rivals), ongoing regulatory probes into FSD safety, and the operational complexity of scaling robotaxis. 

Tesla’s declining core business and reliance on unproven future revenue streams make its current valuation look especially precarious. If EV sales continue to slide or robotaxi adoption lags, significant downside is possible.

It’s a hunch

Tesla’s competitive advantage in autonomy is its scale and its advanced camera-led driving technologies. And trust me, I really want it to succeed. However, for now, the stock will remain at a crossroads until the company’s technology is either proven or fails.

And all this suggests that an investment today would be speculative. Nobody knows that Tesla will succeed. It would simply be a hunch. Moreover, the current valuation leaves little margin for error. For investors, this is a high-stakes moment. It’s potentially unmissable, but fraught with risk. I’m not considering an investment today. The risks are too great. And that’s simply not how I invest.

John Mackey, former CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. James Fox has no position in any of the shares mentioned. The Motley Fool UK has recommended Amazon, Microsoft, and Tesla. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Man writing 'now' having crossed out 'later', 'tomorrow' and 'next week'
Investing Articles

The best time to buy stocks? It might be right now

Short-term issues that delay long-term trends create opportunities to buy stocks. And that could be happening right now with a…

Read more »

Queen Street, one of Cardiff's main shopping streets, busy with Saturday shoppers.
Investing Articles

Here’s why Next stock rose 5% and topped the FTSE 100 today

Next was the leading FTSE 100 stock today, rising 5%. Our writer takes a look at why and asks if…

Read more »

Renewable energies concept collage
Investing Articles

Up 458% in a year, could the Ceres Power share price go even higher?

Christopher Ruane reviews some highs and lows of the Ceres Power share price over the years and wonders whether the…

Read more »

Rolls-Royce's Pearl 10X engine series
Investing Articles

Are the glory days over for Rolls-Royce shares?

Rolls-Royce shares have soared in recent years. Lately, though, they have taken a tumble. Could there be worse still to…

Read more »

Group of friends meet up in a pub
Investing Articles

Are ‘66% off’ Diageo shares a once-in-a-decade opportunity?

Diageo shares have taken another hit in the early weeks of 2026. Are we looking at a massive bargain or…

Read more »

Investing Articles

Meet the UK stock under £1.50 smashing Rolls-Royce shares over the past year

While Rolls-Royce shares get all the attention, this under-the-radar trust has quietly made investors a fortune. But is it still…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

Down 19%, the red lights are flashing for Barclays shares!

Barclays shares have fallen almost a fifth in value as the Middle East war has intensified. Royston Wild argues that…

Read more »

Aviva logo on glass meeting room door
Investing Articles

After falling another 5%, are Aviva shares too cheap to ignore?

£10,000 invested in Aviva shares five years ago would have grown 50% by now. But what might the future hold,…

Read more »