Compound interest in the real world

โ€œCompound interestย is the 8thย wonder of the world. He who understands it, earns it; he who doesnโ€™t, pays it.โ€ โ€“ Albert Eistein

Weโ€™ve all heard about the effect of compounding interest. For most of us, itโ€™s been a few years since we first heard this term in school. Letโ€™s recap on what is meant by compounding interestโ€ฆ

What is Compound Interest?

Compound interest is the addition of interest to the principle sum of a loan or deposit. It is also referred to โ€œinterest on interestโ€. This is because the interest is reinvested, rather than paid out, so that interest in the next period is then earned on the principal sum plus previously accumulated interest. This makes your money grow at a rate significantly faster than simple interest, which is only calculated on the principle sum.

How does Compound Interest work in the long term?

Example:ย Bill invests R 10 000 for 25 years.
Compound Interest
This example clearly illustrates the powerful effect of compound interest over time.

Compounding your Wealth

Most people invest in funds for the following reasons:
  • Advanced Portfolio Management.
  • Convenient and fair princing.
  • Low barier to entry.
  • Risk Reduction at a low cost.
Read More: โ€œWhat does it mean to invest in an Investment Fund?โ€œ

These funds invest in different types ofย Assets Classes. Examples include Equities (stocks), fixed income (bonds), cash and cash equivalents, real estate, etc. Your investment fund will deliver returns in the form of interest, dividends and capital gains. These returns are volatile and will fluctuate over time. This means that the compounding effect of investing in the real world looks a bit different from the example of compound interest illustrated above.

A Practical Example:

Comparison:
  • JSE All Share Index (Equities) โ€“ย Black Line
  • ALBI Index (Bonds) โ€“ย Dark Blue Line
  • STeFI Index (Cash) โ€“ย Gray Line
  • Allan Gray Balanced Fund (Multi-Asset Investment Fund) โ€“ย Light Blue Line

10-Year Returns:

5-Year Returns:

Conclusion:

It is clear from the illustrations above that asset classes perform differently over time. It is important to align your investment goals with your investment choices. An Independent Financial Adviser can fill the role of a financial coach and help you to make informed decisions. They specialise in โ€œlooking at the big pictureโ€ and will consider additional factors like tax, estate planning, risk mitigation, etc.

Contact usย to learn more about how you can use the power of compounding in your financial plan.

Related Articles

  • South Africa Severe Illness Claims Stats 2018 - TVC Wealth and Health Managers

    What is Severe Illness Cover?

    Justin Els/
    31 March 2025
  • Vote

    TVCโ€™s Economic Review of Quarter 1 2024

    The state of the economy impacts you in a tangible way – even more so if you invest. Globally, The Markets were mostly positive in Q1 2024, while the local markets were influenced by uncertainty over the national elections.
    Justin Els/
    28 March 2025
  • The Exchange Rate And Your Investments

    There are many important considerations when investing offshore, but investors often tend to focus their attention exclusively on the Exchange Rate. Many are reluctant to invest when the Rand has weakened. The benefits of investing offshore often tend to outweigh potential gains made by trying to time the investment decision.
    Justin Els/
    28 March 2025
  • Personal Finance 101: Tax Efficient investments

    Welcome to Personal Finance 101. Our commitment to innovation lead us to start a podcast with the purpose of providing financial education to our audience. For our first episode, we cover the topic of Tax Efficient investments.
    Justin Els/
    28 March 2025
  • SASRIA Cover Explained

    After the recent unrest which saw widespread looting and vandalism suffered in areas of Gauteng and KwaZulu-Natal between 9 and 19 July 2021, the loss count has revealed the true impact as devastating. In instances such as this, businesses might typically turn to their insurance provider to compensate for the losses. However, the catch is that most insurers do not cover political unrest and looting.
    Justin Els/
    28 March 2025
  • Conversation, Financials

    Short Term Insurance Explained

    Understanding your insurance terms and small print is important, but we donโ€™t always have the time to do so. This blog article explores this and offers some tips, applying mostly to short-term insurance.
    Justin Els/
    28 March 2025
  • Wealth Protection, Insurance

    Smart Wealth Protection: Comprehensive Insurance

    Youโ€™ve put in the hard work to accumulate your wealth, but is it well protected? In this blog we cover the strategic advantage of Comprehensive Insurance in smart wealth protection.
    Justin Els/
    28 March 2025
  • Personal Finance 101: Financial Planning for Families

    In the latest episode of our Personal Finance 101 Podcast, we cover: “Financial Planning for Families.” Starting a family demands an entirely new set of financial strategies, foresight, and priorities.
    Justin Els/
    28 March 2025
  • 2024 Investment Outlook: A round-up of some predictions

    The 2024 investment outlook looks at the connections between economic uncertainties and geopolitical shifts, and how this translates into diverse investment strategies. The resounding emphasis is on caution and professional guidance for risk management.
    Justin Els/
    28 March 2025
  • Why you should offer group benefits at your business

    Besides offering a good salary, there are other ways that you can make your business a competitive place to work, such as offering group employee benefits. But what are group benefits?
    Justin Els/
    28 March 2025