The Bank of Japan’s most anticipated policy announcement in years left investors underwhelmed, sparking a surge in the yen and sending government bonds and emerging-market stocks lower. Japan’s currency rallied against all of its 31 major peers after the BOJ kept its government-bond buying target and policy interest rate unchanged, opting instead to increase exchange-traded fund purchases.

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US President Donald Trump reacts after signing executive orders imposing tariffs on imported goods in the Rose Garden at the White House on April 2, 2025, in Washington, DC. (Andrew Harnik via Getty Images)