Down 16% in a month, is Tesla stock a falling knife?

Tesla stock has taken a tumble over the past few weeks. Christopher Ruane is itching to buy it at the right price — but is now the time to make his move?

| 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.

Two employees sat at desk welcoming customer to a Tesla car showroom

Image source: Tesla

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.

I did not buy shares in Tesla (NASDAQ: TSLA) a month ago. So far, that looks like the right decision as Tesla stock has tumbled 16% over that period.

Still, as a long-term investor, I do not typically think about owning shares for a matter of weeks.

I reckon the real money is made over the long term. Indeed, as Warren Buffett’s former partner Charlie Munger once said, “the big money is not in the buying and the selling but in the waiting”.

Tesla stock actually demonstrates that point, over the long run.

Even after the past month’s fall, it is still up 490% over the past five years.

So, I have been considering whether the recent share price tumble could be a buying opportunity for me.

I do like many things about the company – but am concerned that, at its current price, it could still be a falling knife.

Tesla has a lot of unique strengths

This, for me, is a question of price.

I think there is a lot of substantial value in Tesla. The thing is, if I buy it at too high a price, and the price later falls, I could end up losing rather than making money with my investment.

Focusing on the underlying business, why do I like the Tesla investment case?

Electric vehicle adoption continues to grow and I expect that will remain the long-term trend. Tesla has a proven production and sales capability at scale. It has a strong brand, distinctive models like the Cybertruck, and lots of proprietary technology.

That could help the existing car business grow in coming years. It also positions Tesla well as it seeks to expand into new vehicle-related opportunities such as self-driving taxis.

On top of that, vehicles are not the only driver for Tesla’s success.

It has a large power generation business that has been going gangbusters. I reckon the future growth opportunity there remains huge.

I’m concerned this could be a falling knife

Indeed, Tesla made net income of $7bn last year.

That is a lot of money. Still, it is less than half of the prior year’s net income. As Tesla’s car volumes declined for the first time, company revenue grew just 1%.

For a growth share, revenue increasing 1% year on year does not impress me. While the $7bn net income is a lot of money, it pales next to Tesla’s capitalisation on the stock market: $1.1trn.

That means the Tesla stock price-to-earnings ratio is 174.

For any company, that would strike me as very high. But this is a company that saw little revenue growth last year and sharply lower profits.

Competitive threats from other carmakers have grown, and increased pricing pressure could mean Tesla needs to cut prices further (hurting profits) or settle for lower sales volumes (hurting revenues).

I think the business is excellent, but the valuation simply looks unjustifiable to me. I think it could end up falling a lot more from here.

If it goes down enough, it might even reach a point where I am happy to buy – but that is still a long way down.

So, for now at least, I will not be buying any Tesla stock.

C Ruane has no position in any of the shares mentioned. The Motley Fool UK has recommended 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

Investing Articles

Dividend-paying FTSE shares had a bumper 2025! What should we expect in 2026?

Mark Hartley identifies some of 2025's best dividend-focused FTSE shares and highlights where he thinks income investors should focus in…

Read more »

piggy bank, searching with binoculars
Dividend Shares

How long could it take to double the value of an ISA using dividend shares?

Jon Smith explains that increasing the value of an ISA over time doesn't depend on the amount invested, but rather…

Read more »

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

£5,000 invested in Tesco shares 5 years ago is now worth this much…

Tesco share price growth has been just part of the total profit picture, but can our biggest supermarket handle the…

Read more »

Investing Articles

Here’s why I’m bullish on the FTSE 100 for 2026

There's every chance the FTSE 100 will set new record highs next year. In this article, our Foolish author takes…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Growth Shares

UK interest rates fall again! Here’s why the Barclays share price could struggle

Jon Smith explains why the Bank of England's latest move today could spell trouble for the Barclays share price over…

Read more »

Man hanging in the balance over a log at seaside in Scotland
Investing Articles

2 out-of-favour FTSE 250 stocks set for a potential turnaround in 2026

These famous retail stocks from the FTSE 250 index have crashed in 2025. Here's why 2026 might turn out to…

Read more »

Young female business analyst looking at a graph chart while working from home
Investing Articles

Down over 30% this year, could these 3 UK shares bounce back in 2026?

Christopher Ruane digs into a trio of UK shares that have performed poorly this year in search of possible bargains…

Read more »

Mature people enjoying time together during road trip
Investing Articles

Yields up to 8.5%! Should I buy even more Legal & General, M&G and Phoenix shares?

Harvey Jones is getting a brilliant rate of dividend income from his Phoenix shares, and a surprising amount of capital…

Read more »