Intervention in the Yen: The Joint Maneuver That Manipulates Its Wealth and Exposes State Fragility

The news of a weekend currency rescue, with the air of a "friendship bracelet" between nations, revealed an orchestrated intervention in the bond market. The U.S. Treasury, in a surprising move, spent real money to defend the Japanese yen. Thus, this joint action, the first in 15 years between the two powers, raises serious questions about the true costs and implications for the average citizen, their mortgage, their 401k, and even investments in AI stocks.

Market observers present in the trading room quickly suspected an intervention when the yen made its expressive move. Subsequently, confirmation arrived: the movement was indeed the result of coordination between Japan and the United States, an act that many interpreted as 'teamwork.' However, experience suggests that such interventions are rarely motivated by pure benevolence and always carry a significant cost, along with potential risks of backlash against the interveners.

Context: The Fragility of the Yen and the Dance of Central Banks

The situation of the yen has been concerning. At the end of July, the U.S. dollar reached its highest level in 40 years against the Japanese currency, approaching 164 yen per dollar. This level represented the weakest point for the yen since 1986. Furthermore, this extreme devaluation directly impacts the purchasing power of the Japanese citizen and the country's trade balance, generating internal pressure for some form of action.

Last week, a sudden drop shocked the markets. The yen plummeted from 164 to approximately 158 in about an hour, without any economic data release or prior warning. Traders immediately detected the fingerprints of Tokyo. However, the Japanese Ministry of Finance initially remained silent about the maneuver.

The Behind-the-Scenes of the Yen Intervention

Friday brought more hints. After a press conference from the Bank of Japan, the dollar stabilized around 157.40 yen. Then, information leaked that the U.S. Treasury had discreetly communicated to banks about the possibility of its participation in the intervention. Confirmation came from various fronts, including Treasury Secretary Scott Bessent, who told Fox Business that the yen was "very undervalued."

The most concrete evidence emerged in an almost comical way. A Reuters photographer caught a notepad at a meeting in Camp David, with a handwritten item on the to-do list: "Buy Japanese yen, 5 to 10 billion dollars." Imagine the scene, a crucial monetary policy outlined on a note. On Monday, Japan's Finance Minister, Satsuki Katayama, officially stated: Japan had bought yen in coordination with the U.S. Treasury. Consequently, the dollar fell further, to about 155 yen, before a slight recovery. The press rushed to hail the "cooperation" between old allies.

However, the official narrative omitted a crucial detail. The last time the two countries conducted a joint intervention to buy yen was not in 2011, as many outlets reported. The 2011 action was, in fact, an opposite operation, selling yen to weaken it after the earthquake and tsunami. The most recent joint intervention to buy yen occurred in 1998. This historical inaccuracy suggests a "sloppy" coverage.

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