
The USD-KRW rate rose 0.80 won to 1,369.40 on September 1 as month-end selling eased, with the pair dipping to 1,364.30 before reversing to a 1,372.40 high. South Korea's August semiconductor exports rose 209 percent year on year to a record $46.65 billion.
The dollar index rose near 99.5 and USD-JPY climbed to 159.80.
Record chip export inflows support the won and reduce the won cost of dollar-priced imports. The won-dollar move is small, and a firmer dollar index limits how much currency relief buyers receive.
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.