$USDJPY

The price action in USD/JPY has been flashing warning signs that look a lot like the Japanese authorities are quietly stepping in to defend the yen.

The pair dropped from near 162.40 to 161.90 in a sharp move, and then again from 161.80 down to 161.30 . These sudden, vertical drops are exactly the kind of moves that traders associate with intervention.

The market has been on high alert because Japanese officials have been unusually aggressive with their warnings. Finance Minister Satsuki Katayama has repeatedly said the government will "respond appropriately at any time as needed" and remains in close contact with US authorities on foreign exchange issues . Japan's top currency diplomat, Atsushi Mimura, has refused to comment on the moves, which is a departure from their usual approach of telegraphing intervention risks . Sources have indicated officials are now using a more targeted campaign to squeeze speculators and keep traders guessing .

The suspected interventions are happening as the yen has been under relentless pressure. The pair recently hit a 40-year low of 162.84 . The wide interest rate gap between the US and Japan continues to drive the carry trade, where investors borrow yen at low rates to buy higher-yielding assets elsewhere . Despite the Bank of Japan raising its policy rate to 1 percent in June and the government spending a record 11.73 trillion yen ($73 billion) on intervention in April and May, the yen has continued to weaken .

The intervention data confirming whether Tokyo has actually stepped in won't be published until later this month, but the market is already pricing in the risk . Key technical levels to watch are 161.75, which was support during the previous intervention rounds and is now acting as resistance , and 160.50, the low from July 2 . A sustained break below 160.50 would signal a failed intervention and could trigger a deeper decline toward 160.00 .

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