March 2026 is a month South African investors will not forget in a hurry. In just 31 days, the JSE shed more than R3.4 trillion in market value. That’s the worst monthly destruction of wealth on our stock exchange since the 2008 global financial crisis.
To put that number in context: at the start of February, South Africa’s listed equities had reached a record high of R26.6 trillion.
Then, on February 28, US and Israeli forces struck Iran. And everything changed.
By the end of March, that figure stood at R23.2 trillion.
What happened? And more importantly, what does it mean for you?
Why the JSE got hit so hard
South Africa’s stock market has a peculiarity that makes it especially vulnerable to exactly this kind of global shock: it is disproportionately weighted toward mining.
The JSE Top 40 – our benchmark index – has roughly 35% of its value in mining companies. That’s an enormous concentration in a sector whose fortunes are tied directly to commodity prices. And commodity prices, as we’ve covered in recent weeks, have been in turmoil since the Iran conflict began.
Gold was supposed to be the safe haven that protected SA miners. Instead, as we explained last week, gold fell sharply – down around 15% from its highs – as investors sold liquid assets to cover losses elsewhere.
The result was brutal. AngloGold Ashanti, Gold Fields, and Harmony Gold collectively lost more than R507 billion in market value during March. Sibanye-Stillwater and platinum miners Valterra and Impala shed a further R272 billion between them. The resources index as a whole lost more than 29% in a single month.
Banking stocks weren’t spared either. The reason is worth understanding, because it’s counterintuitive.
You might assume that higher interest rates are good for banks, since they can charge more on loans. But that logic breaks down when rates rise because of inflation rather than economic strength. When oil prices spike and inflation surges, central banks face pressure to raise rates to cool prices – not because the economy is booming, but because it’s overheating for the wrong reasons.
In that environment, higher rates slow consumer spending, increase loan defaults, and compress economic growth. Businesses borrow less. Homeowners with variable-rate mortgages come under pressure. Developers shelve projects. The property market softens. And banks – whose health is directly tied to the health of borrowers and the broader economy – see their loan books deteriorate even as their margins nominally improve.
What this means for SA investors
The honest answer is that the JSE’s March performance reflects forces largely beyond our control as local investors. A war in the Middle East, a global gold selloff, rising oil prices, and a shift in interest rate expectations are not things many SA investors could’ve predicted or prevented.
But there are lessons worth taking forward.
1) Concentration is risk
A market as heavily weighted toward mining as the JSE will always be exposed to sharp commodity swings. Diversification – including some offshore exposure – isn’t just a financial planning cliché. March proved it matters. Think about owning some rand and inflation-hedges.
2) Volatility creates opportunity on both sides
The JSE fell harder than most global markets partly because it had risen further. Investors who bought SA stocks before 2025’s 38% rally still have significant gains. Those who chased the market near its February peak are nursing painful losses. Entry price always matters.
3) This isn’t 2008
The 2008 financial crisis was a systemic collapse of the global banking system – a structural breakdown that took years to recover from.
This is a geopolitical shock with a defined, if uncertain, endpoint. When Middle East conflicts have resolved in the past, markets have tended to recover meaningfully. That doesn’t mean the bottom is in, but it does mean the comparison to 2008 speaks to the severity of the month, not necessarily the duration of the pain.
In short – panic is not a strategy. Neither is pretending nothing happened. The right response is to review your exposure honestly, understand why you own what you own, and position yourself for the recovery that based on every historical precedent eventually comes.
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