
The rand weakened 1.4% to 13.60 per dollar early on Tuesday as the dollar index rose 0.15% to 96.164. Traders were waiting for Janet Yellen's semi-annual testimony to Congress on Wednesday and Thursday for signals on US rate hikes.
The JSE opened nearly 1% higher, led by resources, on the weaker rand.
A stronger dollar raises the local-currency cost of imported feed inputs in South Africa and tends to pressure dollar-priced commodities. The price impact depends on what Yellen signals about US rates.
Not enough comparable past events yet for a historical read.
After 2,356 past bullish macro events, US Dollar (Broad) moved a median +0.2% over 5 sessions (60% higher; middle half -0.3% to +0.7%), and +0.4% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.