Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

With no savings at 30, I’d use Warren Buffett’s golden rule to build wealth

Many investors look to Warren Buffett — the Oracle of Omaha — for investing guidance. Here’s how he could held transform my wealth.

| 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.

Close-up of a woman holding modern polymer ten, twenty and fifty pound notes.

Image source: Getty Images

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.

Despite having a net worth in excess of $120bn, Warren Buffett‘s teachings are applicable to all investors, even those of us starting with nothing. Let’s take a closer look at his golden rule and how we can put it into action.

No risky bets

Buffett’s headline rule is “don’t lose money” and his second rule is “don’t forget rule one”. This might sound obvious. Of course, it is. But it’s important to look at the message within. It’s about protection of capital, and that’s vitally important if we’re investing a proportion of our salary in lieu of starting capital.

So how can we go about ‘not losing money’? Well, simply it means we need to make sensible investments that reduce our chances of losing. And often this requires us to do our research.

This may mean avoiding meme stocks — a stock that’s volatile, driven by online hype, often disconnected from fundamental value, speculative trading — and focusing on strong investment credentials.

One way to do this is looking at data. This should be fundamental in investment decision-making as it helps us understand whether a company is undervalued or overvalued.

This could mean investing £200 of my salary into stocks each month, and by being data-driven, I may be able to minimise my losers and select more winners. Here are two data-driven examples.

Example 1

Super Micro Computer (NASDAQ:SMCI) stock is up 846% over the past 12 months. But it’s not a meme stock. This company is central to the AI-revolution, providing high-performance, application-optimised solutions for semiconductors.

These essentially comprise a one-stop-shop of solutions for microchips, with proprietary-cooling technology, allowing AI-centred semiconductors to operate at peak efficiency.

And despite surging, the company still has a price-to-earnings-to-growth (PEG) ratio under one. It currently stands at 0.98, inferring the stock is undervalued by 2%.

However, I expect this PEG ratio will fall soon. That’s not because I’m expecting the share price to fall, but because analysts are continually revising their expectations for the company’s earnings upwards.

Sure, other companies will become more competitive in this space as time goes on. However, Super Micro definitely looks dominant for now, and demand for its services is surging.

Example 2

Celestica (NYSE:CLS) is another booming stock, but it’s one which also has positive metrics. The company currently trades at 12.8 times forward earnings and it has a PEG ratio of 0.8. Once again, this infers that the stock still has further to rise.

The firm provides end-to-end high-tech supply chain solutions and product manufacturing services. The recent surge has been engendered by racing demand for its hyperscale services which support AI applications.

As with Super Micro, it’s a leader in a developing space. So there could be more competition to come. However, it benefits from a host of partnerships with big data companies and there’s no sign of the AI boom slowing.

James Fox has positions in Celestica Inc and Super Micro Computer. The Motley Fool UK has no position in any of the shares mentioned. 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

Young woman holding up three fingers
Investing Articles

Want to start investing in 2026? 3 things to get ready now!

Before someone is ready to start investing in the stock market, our writer reckons it could well be worth them…

Read more »

Investing Articles

Can the stock market continue its strong performance into 2026?

Will the stock market power ahead next year -- or could its recent strong run come crashing down? Christopher Ruane…

Read more »

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

Here’s how someone could invest £20k in an ISA to target a 7% dividend yield in 2026

Is 7% a realistic target dividend yield for a Stocks and Shares ISA? Christopher Ruane reckons that it could be.…

Read more »

A quiet morning and an empty Victoria Street in Edinburgh's historic Old Town.
Investing Articles

How little is £1k invested in Greggs shares in January worth now?

Just how much value have Greggs shares lost this year -- and why has our writer been putting his money…

Read more »

Businessman using pen drawing line for increasing arrow from 2024 to 2025
Investing Articles

This cheap FTSE 100 stock outperformed Barclays, IAG, and Games Workshop shares in 2025 but no one’s talking about it

This FTSE stock has delivered fantastic gains in 2025, outperforming a lot of more popular shares. Yet going into 2026,…

Read more »

Close-up of British bank notes
Investing Articles

100 Lloyds shares cost £55 in January. Here’s what they’re worth now!

How well have Lloyds shares done in 2025? Very well is the answer, as our writer explains. But they still…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

How much do you need in an ISA to target £2,000 a month of passive income

Our writer explores a passive income strategy that involves the most boring FTSE 100 share. But when it comes to…

Read more »

Investing Articles

£5,000 invested in a FTSE 250 index tracker at the start of 2025 is now worth…

Despite underperforming the FTSE 100, the FTSE 250 has been the place to find some of the UK’s top growth…

Read more »