The South African rand strengthened to 15.9550 per U.S. dollar by 1311 GMT on Tuesday, up roughly 0.4% from the prior session, as the greenback eased and global commodity prices firmed.
The gains came despite South Africa's central bank reporting a 1.4% month-on-month drop in its composite leading business cycle indicator for June, marking the third consecutive monthly decline. The indicator aggregates metrics including vehicle sales, business confidence and money supply to assess the economic outlook for Africa's largest economy.
Analysts attributed the rand's resilience to broader dollar weakness and higher commodity prices, which bolstered appetite for risk-sensitive currencies. The U.S. dollar index showed little directional movement against a basket of peers but remained vulnerable to further declines as investors digested Washington's expanded sanctions on Iran.
U.S. Treasury Secretary Scott Bessent warned on Monday that countries reducing ties with Iran risk exclusion from the dollar-based financial system, following the announcement of expanded sanctions. The measures target Iran's financial and energy sectors, potentially tightening global oil supply dynamics and supporting commodity-linked currencies such as the rand.
