Sterling slid to around 1.27 against the dollar after S&P warned that a no-deal Brexit could cause two consecutive years of contraction. The dollar strengthened against all G10 currencies, with month-end demand cited as a driver.
Analysts note the pound looks oversold but the Bank of England is unlikely to sound hawkish.
A stronger dollar against major currencies is a modest headwind for US dollar-denominated feed and grain prices, with the effect mainly through export competitiveness.
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.