Goldman Sachs said Japan has roughly $1 trillion in foreign exchange reserves and sufficient capacity to conduct additional yen interventions, according to strategist Karen Fishman in a research note published Wednesday.
The assessment comes as the yen has faced sustained pressure against the dollar. Japan's Ministry of Finance has intervened multiple times this year to support the currency, drawing down reserves in the process. Fishman's analysis shows the central bank and government retain significant firepower even after those moves.
Japan's total reserve assets stood at approximately $1.29 trillion to $1.41 trillion across February through July 2026, according to official Ministry of Finance data. The composition includes foreign currency reserves, gold, and special drawing rights held at the International Monetary Fund.
Goldman also flagged the Federal Reserve's FIMA facility, which allows foreign central banks to temporarily exchange their U.S. Treasury holdings for dollar funding. If Japan fully accessed this mechanism alongside its existing reserves, Fishman said, the country could theoretically deploy the entire amount for market support operations.
Japan has intervened in currency markets in May, June, and July of this year as the yen weakened past 160 per dollar. Each operation required sizeable reserve deployment. The Bank of Japan has maintained its accommodative monetary policy stance, a posture that has contributed to yen weakness relative to the dollar, where the Federal Reserve has kept rates high.
Goldman's reserve estimate of $1 trillion falls at the lower end of the official MOF figures, though the gap reflects different accounting treatments and the timing of the analysis relative to reported data.
The capacity assessment does not address the political or economic costs of sustained intervention, nor does it guarantee the government will deploy reserves at any particular level. Market participants have questioned how long Japan can sustain repeated yen support operations without structural shifts in monetary policy or economic conditions that alter exchange rate dynamics.
