¥15.4 trillion. Nearly $99 billion.
That is how much Japan spent on foreign-exchange intervention to support the yen.
The sheer size of the intervention is striking. But what interests me even more is where the firepower for interventions like this can come from.
Around 70% of Japan’s foreign-exchange reserves are held in foreign securities, with a large share invested in U.S. Treasuries.
When Japan wants to buy yen with dollars, that dollar liquidity has to come from somewhere. Which means pressure on the Japanese currency is not necessarily an isolated issue for Tokyo.
It can also have implications for the U.S. Treasury market.
This time, part of the intervention was also coordinated directly with the United States — the first such coordination since 2011.
Japan is one of the largest foreign holders of U.S. government debt. If pressure on the yen continues and Tokyo is forced to repeatedly draw on its reserves, the question is no longer just how much it can spend defending the currency.
It is also how long interventions of this scale can continue without creating broader effects on reserves and bond markets.
For gold, this is another reminder of a long-term theme.
Foreign-exchange reserves are not just numbers on a central bank balance sheet. They are part of a country’s monetary defense. And when currency pressure intensifies, the difference between reserves held in another country’s debt and an asset that carries no other country’s liability can become much more relevant.
$99 billion spent defending a single currency is a big enough number to pay attention to.
Especially if the yen remains under pressure.
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