*This content is brought to you by Brenthurst Wealth
By Arin Ruttenberg*
Are you living in anticipation of the next big market crash? If so, you are probably wondering how to protect against another disastrous market event like 2008.

It is a foregone conclusion that we will experience another market correction. History tells us that. But because history is backward looking, it cannot tell us when exactly we will suffer another crash.
So, what can you do?
If you are a long-term investor, then the one thing you certainly should not do is panic and sell your investments in the dip. You are doing untold harm to your portfolio, with much lower chances of recovering your losses.
However, at a broader level, you can limit your losses in a crash by sufficiently diversifying your portfolio, while limiting your leverage.
Here are four related principles you can use to guide your thinking and planning for a market crisis:
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Spread your risk across asset classes
One of the secrets to successful investing is appreciating that not all investment assets react the same at the same time. This basic principle of spreading your risk is best illustrated in the graph below that shows the 10-year recovery chart for U.S. stocks from the 2008 global financial crisis.

If you were looking for a rapid recovery, then a mix of 40% stocks and 60% bonds (the dark blue line) would have returned to pre-crisis levels within about two years. A mix of 60% stocks and 40% bonds (the light blue line) took another 12 months to recover, while the S&P 500 (the green line) took about 4,5 years to recover from its previous peak in 2007.
However, 10 years after the crisis being 100% in equities would have given you the highest returns, albeit with some volatility along the way.
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Spread your risk offshore
South African investors are often encouraged to build offshore portfolios to counter the low growth domestically. However, diversifying your portfolio by holding stocks abroad is a principle applied by investors globally.
The benefits of doing so was illustrated in research by legendary investor David F Swensen who died earlier this year, showing that hypothetical investors who had invested equally in the United States, Europe, and Asia Pacific from 1970 to 2014, and rebalanced occasionally, had better risk-adjusted returns (10.6% annualised in USD) and thus lower volatility than any of the three markets independently.
The big attraction for South African investors is that their investment choices are broadened exponentially once you consider the investment opportunities offered by larger, deeper and broader markets.
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Importance of rebalancing
After a stock market crash, many investors damage their portfolio by selling their holdings after the market has declined deep into bear territory. This effectively means they do not get the full benefit from an eventual recovery in prices.
Rather than selling stocks after they fall, you should be buying. You can ignore fears about market timing if you apply the principle of occasionally rebalancing your portfolio – a strategy I am most fond of.
How this works is that shares become a greater proportion of your portfolio as they rise in value. If this then means you’re overweight stocks, you can sell some to buy bonds or other asset classes to return to your target allocation, or you can direct new income to your underweight asset classes.
Conversely, when stocks fall, they will become a smaller portion of your portfolio, especially if bonds and certain other asset classes have retained their value.
Buying into a diversified low-cost portfolio with exposure to several asset classes, and rebalancing occasionally, is one of the simplest and most effective long-term strategies for the majority of investors.
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Do not be greedy
One of the biggest challenges you face as an investor is to fight human nature. When things go badly, the natural instinct for many is to flee before taking further damage, despite locking in losses by selling at the bottom of the market.
Similarly, it is easy to get greedy when a bull market has been running for several years. What separates smart investors from average ones is that they are cautious when others are greedy, and opportunistic when others are fearful.
So, when the economy is strong, it is better to focus on building your wealth, paying down debt, and making sure you have an emergency fund to solidify your financial position. If a downturn comes, then you are prepared and should be able to ride out the worst of it.
Your primary focus should be to keep your necessary expenses (housing, transportation, food, healthcare) well below your income.
It is the households that do not do this that suffer the most when the economy turns sour because they were over-leveraged and had low levels of savings. Or they might have sold their stocks at the market bottom and have not recovered in tandem with rising stock prices post the crisis.
These are all mistakes that can be easily avoided when you have the right perspective. And calling on expert advice from a certified advisor is a great way to make sure you make the best decisions when times are good, and bad.
- Arin Ruttenberg is a financial advisor at Brenthurst Sandton



Megan joined the Brenthurst Wealth team in March 2026 as an Administrative and Fiduciary Services Assistant at our Val de Vie Office in the Western Cape. Prior to joining Brenthurst, Megan gained three years of experience in the retail sector, where she developed management and client service skills.




I obtained my National Diploma in Financial Information Systems from the Cape Peninsula University of Technology in 1999 and have worked in the wealth management industry since January 2000. Over the years, I have gained extensive experience in various roles, including Portfolio Manager Assistant, Planner Assistant, and Paraplanner.
Esmarelda Isaacs-Andreas joined the Brenthurst Wealth Stellenbosch office in October 2025, taking on the dual role of Receptionist and Fiduciary Administrator.
I obtained my National Diploma in Financial Information Systems from the Cape Peninsula University of Technology in 1999 and have worked in the wealth management industry since January 2000. Over the years, I have gained extensive experience in various roles, including Portfolio Manager Assistant, Planner Assistant, and Paraplanner.
Ashley joined Brenthurst Wealth in January 2025 as Office Administrative Assistant and Receptionist for the Stellenbosch Office.




René Heystek joined Brenthurst Wealth in November 2023, as receptionist and administrative assistant in the newly established George/Garden Route office.
Michelle Heystek has built a career in the financial services over the last two decades, after obtaining her B.Com degree in Financial Management in 2005. Once she joined Brenthurst in 2006, she continued her academic journey, obtaining her Certificate in Wealth Management from INSETA in 2007, followed by a Postgraduate Diploma in Financial Planning from the University of the Free State. In 2008, she earned the Certified Financial Planner (CFP®) designation.





Anelle joined Brenthurst Wealth as a Receptionist and Administrative Assistant to Brian Butchart in the Cape Town office in December 2023. She has a wealth of knowledge from working as a liaison between Financial Advisers and clients at TMA and Absa Investment Management Services (Aims) since 1998. She obtained her B. com degree from the University of Port Elizabeth in 1997.











ADMITTED ATTORNEY | FINANCIAL PLANNER & HEAD OF BRENTHURST FOURWAYS

Sanet was appointed in April 2020, joining our Cape Town team as an Executive Administration Assistant to Renee Eagar. She has been in the financial services industry since 1990. Her previous experience includes positions at Sanlam, BJM and ABSA. She spent her last 12 years working at Alexander Forbes Private Client Wealth as a Senior Wealth Management Assistant. She has received numerous accolades over the years which include but not limited to, Alexander Forbes Client Service Excellence – Silver award in 2014,2015 and 2017. Sanet has also obtained her Certificate in Wealth Management (NQF 5) in 2012 and achieved “Best Student of the Year” from Moonstone.













Maria Smit is a Certified Financial Planner® with over 10 years of experience in the financial planning industry.


























