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.

3 investment rules I live by

Paul Summers highlights three rules that long-term investors should never forget.

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!.

Investing is often made out to be a hideously complex thing that only high-charging professionals in the city are able to do. Fact is, many regular people are capable of growing their wealth with a bit of research and by remembering a few fairly basic rules along the way. 

Here are just three of the latter I like to keep in mind. 

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.

1. Nothing lasts forever

Without wishing to get your week off to a bad start, it’s worth remembering that everything we know is always in a state of flux and nothing is permanent. This is particularly true in the stock market.

Now, bar the odd wobble, markets have only gone in one direction since the financial crisis. They might continue going higher for a while. 

At some point, however, everything succumbs to gravity. We might not know what the cause will be (or when it will happen) but this is not as important as recognising that corrections and bear markets are to be expected not feared.

It’s also why, if you’re a passive investor, it can make sense to invest the same amount of money on a regular basis rather than all in one go.  

Gravity applies to individual companies as well. That wonderful growth stock that just simply won’t stop going up in price? It’ll come unstuck, even if only temporarily.

This might happen even if profits continue rising and simply because the weight of expectation has become too great. It’s the equivalent of scoring an ‘A’ in an exam when a teacher or parent was expecting an ‘A*’.

Sounds harsh? Thankfully, there’s a flip side to all this.  

2. The market has a habit of over-reacting

The fact that the good times won’t last forever also applies to bad times. And when the proverbial hits the fan, that’s usually the time we should be buying stocks.

Unsurprisingly, market participants have a habit of getting rather het up when prices drop. Research in the field of behavioural economics shows that losses feel far more painful than gains feel good. 

In time,  things recover. When there is no one left to sell, no stock gets sold. Cue buyers. Cue a rise in prices. It’s all down to something called ‘regression to the mean‘ or the tendency for things to even out over time.

The market may have trouble seeing this in the short term, but after a while — and by ‘a while’ I’m talking months, sometimes years — things will revert back to their true value. 

3. If everyone agrees with you, do the opposite

We’re social animals. We like it when people agree with us or praise things we’ve done. That’s all fine unless we’re talking about the stock market.

Buying stocks that everyone loves feels good. Buying stocks everyone wouldn’t touch with a barge pole? That’s not quite so comfortable but it can be far more lucrative. 

An established finding in investing has shown that the cheapest shares (those that the market is either uninterested in or hates) collectively give better returns than those with lofty prices over the long term. 

As to be expected, however, achieving this outperformance requires a whole lot of patience on the part of the individual.

That’s in short supply, of course, and that’s why being a contrarian can work wonders for your wealth. 

Paul Summers has no position in any of the shares mentioned. 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 black female footballer training on stadium pitch
Investing Articles

How has this FTSE 250 share surged ANOTHER 7% today?

Applied Nutrition shares have soared on Monday after another brilliant trading update. So what's the FTSE 250 company's secret?

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

The stock market game you’re actually playing (and why you might be losing)

Our writer recounts a painful experience of making a rash stock market decision based on emotions, not logic – and…

Read more »

Aerial shot showing an aircraft shadow flying over an idyllic beach
Investing Articles

Why is EasyJet stock suddenly a takeover target for US investors?

Andrew Mackie looks at easyjet shares jumping on US takeover talk — but is this a genuine re-rating or just…

Read more »

Young Black woman looking concerned while in front of her laptop
Investing Articles

Have investors got BT shares all wrong?

BT shares spiked during the 1990s telecom boom, then struggled for two decades. Harvey Jones says it's the future that…

Read more »

BUY AND HOLD spelled in letters on top of a pile of books. Alongside is a piggy bank in glasses. Buy and hold is a popular long term stock and shares strategy.
Investing Articles

Looking for buying opportunities in June? Here’s 1 to consider from my Stocks and Shares ISA

The conflict in Iran is making one of the investments in Stephen Wright’s Stocks and Shares ISA volatile. But could…

Read more »

Row of blue European Union flags in Brussels.
Investing Articles

After crashing 13.7% today, is Wise now a stock market bargain at 805p?

Wise was one of the biggest fallers on the UK stock market today. What on earth is going on with…

Read more »

Road 2025 to 2032 new year direction concept
Investing Articles

At 8% is this eye-popping FTSE 100 dividend yield simply too good to be true?

The dividend yield is to die for, but the share price is lacking in life. Harvey Jones examines whether this…

Read more »

The flag of the United States of America flying in front of the Capitol building
Investing Articles

UK investors are piling into this legendary S&P 500 growth stock while it’s down 50%

This US growth stock fell from $240 to $80 amid AI disruption fears. And investors are now aggressively buying it…

Read more »