Five simple rules for investing

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Investing for the first time can be daunting and it’s hard to know where to start. It might seem like there’s an endless line of decisions to make, with so much noise around the investing world that you’re not sure what you really need to focus on.

But while investing can be complex, it doesn’t need to be that way. Here are five simple investment rules to get you on the way to achieving your financial goals.

Rule 1: Start right now

As in, not tomorrow or next week, but today – even if it’s just a £1 a day or a week. No matter how small the amount, just start right now and you’ll see your money grow quickly. That’s because of a really simple but important concept – compound interest. Another way of explaining compound interest is that you get interest on the interest you get paid, and then you get paid interest on that interest, and pretty soon the interest you earned is bigger than the money you put in there in the first place.

Let’s say you put £100 in the bank. If the interest rate is 5% you’ll earn £5 in interest in the first year. That means you now have £105 instead of £100. The next time you receive interest, it will be on your original £100 as well as the interest you received, so you get £5.25. Now you have £110.25. And it will keep growing and eventually the interest bit will be bigger than the original sum you put in the bank. If you did that for 25 years (at the same interest rate) your £100 would become £338.64.

Now imagine that you saved £100 a year at the same interest rate. After 25 years, you’ll have saved £2,500 but earned an additional £2,273 in interest — almost double the amount you saved. It’s a bit like a snowball that rolls downhill, gathering snow. By the time it reaches the bottom, the snowball is much larger than it was at the start.

The longer you save, the better. After 35 years of saving £100 a year, you would have accumulated £9,032 and £5,532 would have been interest. We’ve got more on how you can use the power of compounding to make yourself rich.

Rule 2: Don’t pick stocks

First, here’s a quick overview of the stock market. To raise capital (money), companies sell shares of their company on the stock market. These shares are publicly traded and there is a fixed number available. If someone wants to buy a share, someone else who owns a share must be selling it. It’s this supply and demand that determines the price of a company’s shares, usually driven by how the company is doing (or predicted to do). Now that we are all on the same page, let’s get down to the nitty-gritty of why the best investors in the world all say the same thing — do NOT pick and invest in individual stocks!

No one has a crystal ball to predict which company’s shares will go through the roof and which will tank. If there was a simple way to reliably predict which shares would outperform the rest, then every stock-picker in every corner of the country would be a billionaire. In reality, for every billionaire made by the stock market, there are legions more going broke.

You’re probably wondering why people invest if the stock market is so risky and unpredictable? That’s because the best way to invest is through an investment fund that buys shares in lots of companies on behalf of its investors. The fund will protect you from some of the risk of picking the wrong stocks. In investments, some stocks will go up and some will go down.

Although there is some risk, the stock market has always gone up over the long term. This means that if your portfolio (investments) reflects the broader stock market, your investment will grow over a long period of time even as some individual stocks go down.

Rule 3: Keep costs low

Your investments could be doing very well, but if the cost of managing those investments is high, then it reduces the long-term returns. Active funds charge higher fees, then there’s the cost of a financial adviser (if you use one) and the investment platform fees where your investments are hosted. All those costs can add up and erode your earnings, so it pays to pay attention.

Let’s say your investment is making an average return of 2% a year. If your adviser, investment platform and fund are charging you 2% a year, then your returns are wiped out. It’s the opposite of compound interest, those fees can snowball out of control.

Now let’s look at two people who invest £1,000 a month for 30 years. One is paying fees of 1.5% and one is paying fees of 0.5%. A 1% difference might not seem like a lot but after 30 years, the first person has accumulated a portfolio of £387,430 while the second one has accumulated a portfolio of £450,741. That’s a difference of £63,212, which is huge.

If you use an adviser, ask about the impact of fees on your investments. If you look after your own investments, check what you’re being charged for the platform and the fund charges.

Rule 4: Diversify

Investing in stocks and bonds comes with risk, so it’s good to have a diversified portfolio – which basically means not putting all your eggs in one basket. In rule three we explained why stock-picking never works and why funds do. Smart investors spread the risk by buying funds that give exposure to different markets and asset classes.

If you spread your investments across lots of different industries, countries and regions, it will protect you against any ups and downs in any part of your portfolio. We human beings prefer to invest in what we know and trust, but rather than investing in a bunch of UK equity funds which will be invested in the same underlying investments, you can diversify with investments in UK, Europe, US and Asia-Pacific equity funds for example, spreading the risk and taking advantage of different economic factors in each of those markets. You should also diversify with cash, bond and mixed asset funds.

Rule 5: Tune out the noise

Emotion is the enemy of successful investing. When the markets are up and down it’s easy to make decisions based on greed, fear, anxiety, excitement and other emotions. But history has shown that trying to time the market usually leads to worse returns. The difference between good and bad investors is that good investors can tune out the noise.

You might say that the 2008 global financial crisis was hardly just noise, for example. And you’re right – events can have a huge impact on markets, the economy and investors. But the investors who panicked in 2008 and pulled their money out didn’t just crystallise their losses – they also missed out on a decade of stellar growth. The stock market rose by 84% in that time – that’s a lot to lose out on. Smart investors stay invested – and we know you’re smart investors.


Photo by Debra Angel on Canva