As global markets fluctuate, many South African investors are making decisions based on headlines rather than hard data – a pattern history shows can hurt long-term returns. Geopolitical tensions in the Middle East, particularly the ongoing conflict involving the United States, Israel, and Iran, have pushed global oil prices higher and intensified market uncertainty, with Brent crude recently trading above $107 per barrel.
Domestically, rising fuel costs and a weaker rand (around R16.8/$) are compounding cost pressures on households and businesses. Analysts warn these combined factors could push inflation higher and influence interest-rate decisions closely watched by the South African Reserve Bank.
Adding to cost pressures, the 2026 National Budget confirmed increases in fuel levies and carbon taxes from 1 April 2026, which, combined with rising global oil prices driven by geopolitical tensions, will feed directly into pump prices.
Fuel costs and the agriculture sector
For South Africa’s agriculture sector – currently entering a peak diesel-use phase as farmers prepare for harvesting – these fuel pressures are significant. Diesel accounts for roughly 11 – 13% of total production costs for grain and oilseed farmers, and transport is heavily road-dependent, with an estimated 75% of maize, wheat, and oilseeds moved by truck from farms to market.
“Sustained fuel price increases don’t just hit motorists – they also raise the cost of running tractors, harvesters, and logistics fleets, ultimately driving higher food prices for consumers,” says Pedri Reyneke, CEO and Fund Manager at Findotec.
Investor behaviour and market volatility
“Many investors react to news faster than economic realities unfold. Knee-jerk decisions during volatile periods often erode long-term returns.”
Behavioural research consistently shows that average investors often underperform because they trade on emotion rather than disciplined strategy – selling during downturns and missing key rebounds.
“Markets are complex systems influenced by thousands of variables, from economic data and global politics to currency flows and commodity prices. Attempting to predict outcomes based on sentiment or headlines is extremely difficult. A far more reliable approach is to focus on evidence and adapt as conditions change.”
Investor takeaways
The current geopolitical and domestic cost environment underscores that volatility is a permanent feature of financial markets. Rather than attempting to avoid it, investors should build strategies that are resilient and grounded in data.
“South African investors can mitigate currency and inflation impacts by relying on strategies built from continuous, adaptive analysis – not speculation. Science, math, and disciplined monitoring should guide investment decisions, not sentiment,” concludes Reyneke.
Findotec is a South African investment firm that combines disciplined, data-driven analysis with behavioural insights to guide long-term investing. Each portfolio is constructed using rigorous screening, smart fund selection, diversified allocation, and ongoing oversight, ensuring strategies are evidence-based and adaptive to changing market conditions. By focusing on consistent performance rather than sentiment, Findotec aims to help investors navigate volatility with precision and confidence.
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