The South African rand plunged to become the world’s worst-performing currency of the day after the South African Reserve Bank (SARB) surprised markets by holding interest rates steady.

The Monetary Policy Committee’s decision to maintain the repo rate at its current level defied widespread market expectations for a 25-basis-point increase, signaling a shift in the central bank’s priority toward supporting economic growth rather than tightening further.

The currency’s sharp depreciation reflects the immediate repricing of rate differentials.

With the SARB opting for a pause, the yield advantage that had been pricing into the rand evaporated, triggering selling pressure across the board.

The move underscores the growing divergence between the SARB’s domestic growth concerns and the hawkish stance maintained by other major central banks.

In its accompanying statement, the SARB revised its inflation forecasts lower, citing easing price pressures and a more favorable outlook for the domestic economy.