The Dollar Index was flat at 103.42 ahead of the FOMC decision and the upcoming US payrolls report. US job openings unexpectedly rose in December and consumer confidence climbed, while the Australian dollar eased after weaker retail sales.
Dollar direction is set by rate expectations and labor data, and a firmer dollar tends to pressure USD-priced commodities. This is routine pre-event trading with no new supply or demand driver.
After 359 past neutral macro events, US Dollar (Broad) moved a median -0.0% over 5 sessions (49% higher; middle half -0.4% to +0.4%), and -0.1% 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.