Daily Management Review

Japan may have spent $34 billion on interventions to support the yen on July 31


08/04/2026


According to Bloomberg's analysis of the Bank of Japan's accounts, Japan probably expended around 5.3 trillion yen ($34 billion) on currency support interventions last Friday, July 31.



pixnio
pixnio
On that day, the dollar decreased by 1.3% against the yen, which traders viewed as a cue for intervention in the foreign exchange market. Subsequently, the Japanese Ministry of Finance verified that it had engaged in collaborative interventions with the United States for the first time in 15 years to bolster the national currency.

US President Donald Trump declared that Washington participated in currency interventions that aided in strengthening the yen as a gesture of goodwill towards Tokyo. US Treasury Secretary Scott Bessent cautioned that the United States would rejoin collaborative interventions with Japan if required.

At the beginning of trading on August 3, the dollar-yen exchange rate increased once more, but soon dropped sharply, prompting experts to speculate that the Japanese Ministry of Finance intervened again. The exchange rate of the dollar decreased to 155.23 yen while trading. 

Prior to the currency market interventions last week, the yen was at its weakest against the dollar since 1986, approximately 164 yen per dollar.

As reported by Bloomberg, the Japanese government invested 8.45 trillion yen to bolster the national currency on July 30, marking a historic peak.

The yen has consistently declined this year as investor interest has shifted towards dollars due to the Middle East crisis and the difference in interest rates between the Federal Reserve and the Bank of Japan.

source: bloomberg.com