We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

The ONE thing you need to know to succeed in the market

Here’s the one piece of advice you need to understand to be able to succeed in the markets.

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

It may seem like an outrageous statement to make, but around 90% of beginner investors don’t know or understand the one thing every seasoned investor knows is the secret to making money in the market.

You see, most beginners come to the market looking to make their fortune. They pick the stocks which they believe are going to make them the most money, with little consideration going into other factors. 

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

But this approach misses out one key factor.  

The preservation of capital

Yes, you should pick the stocks which have the most potential for upside after conducting rigorous due diligence. However, you should also seek to pick the stocks which have the least downside risk. Many investors forget to include this in their analysis, instead concentrating on the upside potential without giving any regard to downside risks. 

The presevation of capital is the single most important consideration for all of the world’s greatest investors and it is easy to see why. Say one of the stocks in your portfolio went sour last year, the company turned out to be a fraud, the shares were suspended, and you lost 100% of your investment. In a well diversified equally weighted portfolio of around 30 stocks, this total loss would cost you 3.3% of your capital.

Over the past five years, the FTSE All-Share has returned an average of 5.3% per annum and over the previous three years, the index has produced a return of 3.9% per annum. By using these figures, you can see how just one the significant loss can severely dent your returns over just a few years.

For example, if you invested £10,000 in a basket of 30 stocks for five years, and assume a return of 5.3% per annum, at the end the period you would have a total of £12,946 — a total return of 29.5%. However, if you took a 100% loss on a single 3.3% position during year two, by the end of the period the total value of your portfolio would be £12,577, a total return of 26% — £369 less than the portfolio that avoided the loss.

Over the past three years, the difference in returns is even starker. Assuming a return of 3.9% per annum over the past three years, a £10,000 portfolio would have turned into £11,216 by the end of the period for a total return of 11.2%.

If we assume a 3.3% loss during year two in the same portfolio, then over the three years the initial £10,000 investment will only have grown to £10,859 for a total return of just 8.6% — £357 less than the value of the portfolio without a loss. 

If you model the figures out for a decade, the performance gulf grows even wider. Over ten years, the value of the second portfolio, assuming returns of 3.9% per annum with no loss, will see a total return of 46%. But the portfolio with a 3.3% loss in the second year will see compound growth of only 25% over the period. 

The lesson is clear — avoiding losses is a key factor for great portfolio performance. 

Rupert Hargreaves has no position in any shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Young female couple boarding their plane at the airport to go on holiday.
Investing Articles

Can the Rolls-Royce share price reach £15.97 by the end of August?

The Rolls-Royce share price has had a solid run in the last year. Muhammad Cheema takes a look at whether…

Read more »

Santa Clara offices of NVIDIA
Investing Articles

Up 1,200% in 5 years, here’s why Nvidia could still be a brilliant value stock

An exciting new announcement that could reshape the PC industry has just pushed Nvidia stock... well, just about nowhere really.

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

How investing £4.50 a day could set you on the way to a £1,505 monthly second income

How can UK stocks with high dividend yields help investors earn a meaningful second income from the price of a…

Read more »

Investing Articles

Up 103% with a P/E of 261 — is this FTSE 100 stock still worth buying?

One FTSE 100 stock is quietly moving higher while most investors are still looking elsewhere — is the market missing…

Read more »

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

The smart money thinks AI stocks look risky — but is there still a chance to buy?

According to fund managers, the AI trade is getting crowded. But they still seem to think it’s the place to…

Read more »

Man putting his card into an ATM machine while his son sits in a stroller beside him.
Investing Articles

Barclays shares are 11% below their 52-week high. Could they be a bit of a bargain to consider?

Overpriced or one of the FTSE 100’s hidden gems? James Beard takes a closer look at how the market is…

Read more »

Stack of one pound coins falling over
Investing Articles

Down 65% but yielding 6.7% – is this beaten-down UK stock now a generational bargain?

Harvey Jones says this UK stock is one of the worst FTSE 100 performers but there are sound reasons to…

Read more »

Portrait of elderly man wearing white denim shirt and glasses looking up with hand on chin. Thoughtful senior entrepreneur, studio shot against grey background.
Investing Articles

Is this FTSE stock really 46% undervalued?

Analysts reckon this FTSE stock should be worth nearly 50% more. James Beard considers why there’s so much positivity surrounding…

Read more »