
The ringgit opened lower against the US dollar at 4.1870/1890 on September 30, from the previous close of 4.1830/1855. A dealer cited a lack of market catalysts and higher US Treasury yields, while steady Brent crude near US$78.86 per barrel limited the decline.
Firm Brent prices support Malaysia's oil and palm oil export earnings and cushion the ringgit, which affects the local-currency cost of dollar-priced feed and energy inputs.
Not enough comparable past events yet for a historical read.
After 323 past bullish macro events, Crude Oil (Brent) moved a median +0.7% over 5 sessions (58% higher; middle half -2.9% to +3.7%), and +1.3% 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.