
The Nikkei share average slumped 2.5% after the Bank of Japan changed its yield curve policy in a surprise move. The dollar fell as much as 3.1% to a four-month low of 132.68 yen.
The 10-year JGB yield briefly spiked to 0.460%, near the BOJ's newly set implicit cap and the highest since 2015.
The sharp yen move and equity sell-off change the cost of dollar-denominated commodity imports for Japan and the risk appetite that drives commodity funds. The effect on feed prices is indirect but could persist.
Not enough comparable past events yet for a historical read.
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.