Foreign-exchange reserves hit a record high of $405.7 billion at the end of October, up $8.69 billion from the previous high set in September, the Finance Ministry said Wednesday.
The rise primarily stems from a series of yen-selling interventions made for dollars and euros to stem the yen's rise since Sept. 17.
The foreign reserves consist of securities and deposits denominated in foreign currencies, International Monetary Fund reserve positions, IMF special drawing rights and gold.