The worsening diplomatic environment between the United States and South Africa is already having tangible economic consequences. The South African rand (USD/ZAR) has grown increasingly volatile, with fluctuations closely tied to political developments and trade uncertainties.
Investor sensitivity to the bilateral relationship was underscored in May 2025, when the announcement of a forthcoming meeting between Presidents Ramaphosa and Trump triggered a brief appreciation in the rand, which traded at 18.22 against the dollar following the news. This movement reflects how political headlines are directly influencing currency sentiment.
Beyond bilateral tensions, broader geopolitical dynamics - including US trade policy toward China - also shape rand performance. Given China’s role as South Africa’s largest trading partner, any escalation in US-China trade disputes indirectly impacts South African financial markets.
For instance, the rand risk gauge dipped after President Trump suggested he might not follow through on China tariffs, underscoring the currency’s exposure to US geopolitical posturing. Political uncertainty within the US, including domestic instability or high-profile events like attempted assassinations, can further fuel market unease and increase exchange rate volatility.
Domestically, disappointing economic indicators, such as an expected contraction in the mining sector, are compounding the rand’s fragility. This multifaceted pressure on the currency directly impacts rand hedge stocks - companies that earn significant revenue in foreign currencies. Often viewed as a buffer against a weakening rand, these stocks have experienced heightened sensitivity in recent months.
While a depreciating rand boosts their reported earnings in local currency terms, their overall performance is also tied to global market trends and company-specific fundamentals. As such, they remain an imperfect hedge against politically driven volatility.
At a broader level, South Africa’s preferential access to the US market through the African Growth and Opportunity Act (AGOA) is also under threat. AGOA has been instrumental in supporting South Africa’s agricultural and automotive exports, with around two-thirds of US-bound agricultural products - such as citrus fruits, wine, and nuts - entering tariff-free. In 2024, automotive exports under AGOA reached billions of rand in value.
However, repeated threats from the Trump administration to revoke AGOA eligibility, coupled with proposed tariffs - including a 25% duty on vehicle imports and a temporarily suspended 30% tariff on various goods - have undermined the agreement’s economic benefits.
Losing AGOA access could have sector-specific repercussions far more severe than the modest 0.06% GDP impact projected by analysts. The stakes are much higher for industries like food and beverages, transport equipment, and fruit and vegetables. Job losses, reduced export earnings, and diminished investor confidence are likely outcomes.
Recognising these risks, South Africa is pursuing trade diversification strategies and even exploring the possibility of a new bilateral agreement with the US to stabilise economic ties.
Ultimately, the mounting strain between the two nations risks disrupting established trade flows, revealing South Africa’s vulnerability to US foreign policy decisions. The volatility in its currency, exposure of key sectors to shifting trade dynamics, and investor unease all signal that the economic fallout from diplomatic tensions is no longer hypothetical - it’s already unfolding.