Sterling and the FTSE 100 fell after the Bank of England expanded its asset purchase facility by £100bn to £745bn, with the facility to be filled by year end. The decision was seen as implying a slowdown in the pace of growth in QE.
A weaker pound and risk-off equity moves shift currency and risk-appetite flows that can affect dollar-denominated commodity prices at the margin, though the link to feed markets is weak.
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.