Japan's August foreign reserves post largest-ever drop after record intervention

September 6, 2026 8:28 PM EDT

FILE PHOTO: Japanese Yen and U.S. dollar banknotes are seen in this illustration taken March 10, 2023. REUTERS/Dado Ruvic/Illustration/File Photo

By Makiko Yamazaki

TOKYO, Sept ‌7 (Reuters) - Japan's ​foreign ​reserves posted their biggest-ever drop in August, government data showed on Monday, after Tokyo launched another round of ‌record dollar-selling, yen-buying intervention to stem persistent weakness in ⁠its currency.

The reserves stood at $1.208 trillion at the end of August, down by ‌a record $79.6 billion, or 6.18%, ‌from $1.287 trillion a month earlier, according to the Ministry of Finance (MOF) data.

The decline was led by a drop in foreign ​securities, held mostly in U.S. Treasuries bought during dollar-buying intervention conducted around two decades ago, which account for about 70% ⁠of Japan's reserves.

Japan spent 15.4 trillion yen ($98.66 billion) on intervention between July 30 and August ​26, marking the largest intervention operation on record in a single month, separate MOF data showed last ​month.

The intervention helped lift the yen ‌from 40-year lows near 164 per dollar to as high as 155.20 by August 3. The Japanese ⁠currency subsequently weakened toward 160 before recovering to around 155 to 156 in early September.

Part of the yen-buying operation was conducted jointly with ⁠the United States, the first coordinated intervention by the two countries since 2011, ​surprising markets that had seen little prospect of such action.

To soothe market concern about the limits of Japan's capacity for large-scale intervention, Tokyo and Washington ‌have said Japan could utilise a COVID-19 era Federal Reserve backstop for major central banks.

The Fed ‌facility, introduced in 2020 to steady markets during the pandemic, allows ⁠Japan to raise dollar liquidity ‌without outright sales of ​U.S. Treasuries, potentially easing funding pressure on Tokyo for intervention.

($1 = 156.0900 yen)

(Reporting by Makiko Yamazaki; Editing by ‌Muralikumar Anantharaman)



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