Japan shifts to ambush intervention tactics against yen short sellers, sources say

Japan's Ministry of Finance is shifting to surprise intervention tactics against yen short sellers, moving away from previously telegraphed currency market actions. Officials are avoiding signaling any specific exchange-rate threshold, using silence as a policy tool to keep traders guessing, while coordinating with the Bank of Japan's hawkish stance. The yen recently touched a 40-year low around 162.66 per dollar, with prior intervention between late April and early May costing Japan a record 11.7 trillion yen (about $72 billion).