Japan, 15 trillion 399.3 billion yen in yen purchases... 7 trillion 975.6 billion yen on July 30

Japan’s Ministry of Finance disclosed that it spent a total of ¥15.3993 trillion buying yen and selling dollars across three foreign-exchange interventions this summer, with the largest single-day operation on July 30 at ¥7.9756 trillion, followed by ¥5.5523 trillion on July 31 and ¥1.8714 trillion on August 3. The ministry had previously released only the aggregate intervention figure in its August 28 monthly statistics, leaving the per-day breakdown undisclosed until now. The scale of the yen-buying operations drew attention because it roughly matched a decline in Japan’s U.S. Treasury holdings, and the ministry said the August 3 action was coordinated with the U.S. Treasury. The disclosure matters because it gives markets a clearer picture of how aggressively Tokyo defended the yen during the summer and how the operations were timed. What to watch next is whether further interventions follow if yen weakness persists, and how the sales of dollar assets affect Japan’s foreign reserves and U.S. Treasury holdings.