A man named Atsushi Mimura sat in a Tokyo office Thursday night and pushed a button. The yen jumped 3% in minutes. And somewhere in Tampa, the rate on a guy's mortgage refi started ticking up.
He didn't know it. He was asleep. But that's how this works now.
I can't stop thinking about this. Japan crossed a line Thursday night they hadn't crossed in nearly two years. Their currency had fallen to 160 against the dollar. So Tokyo stepped in. They started buying yen. To buy yen, you have to sell something. They sold dollars.
Where did those dollars come from? From a pile of US Treasury bonds. Japan's pile.
Japan owns $1.2 trillion of our debt. More than any country on earth. More than China. They are our biggest lender. And they just started selling.
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If you have even a single dollar invested in the U.S. stock market, this is going to directly impact you.
Here's what worries me. When a big holder sells US bonds, the price drops. When the price drops, the yield goes up. And our 30-year mortgage rates? They track that yield almost step for step.
So a man in Tokyo sells bonds at 3 a.m. our time. By breakfast, the rate on a HELOC in Phoenix is a hair higher. By lunch, a couple in Tampa gets a worse number on their refi. Nobody in Washington picked up a phone. Nobody voted on it. It just happened.
The Finance Minister of Japan is a woman named Satsuki Katayama. On Thursday she told reporters something that stopped me cold. She told them to keep their phones on. All weekend. Through Monday, Tuesday, Wednesday. Japan's markets are closed those days for a holiday they call Golden Week. That's the window. That's when the next move comes.
Her deputy, Mimura, said Japan is in "extremely close contact" with the US. I get it. That sounds polite. That sounds calm. But read it again. They are telling us before they sell. They are warning us. Because if they didn't, things could break.
I don't think most people realize how strange this is. The Fed is supposed to set our rates. That's the whole point. A room full of Americans in Washington, voting. That's the system we were taught. But Tokyo has a vote too. They just used it. And they're about to use it again.
The S&P 500 closed above 7,200 this week. First time ever. People are buying boats. People are pouring concrete. Markets feel calm. I had lunch with a friend who runs a small print shop. He's never been more optimistic. He had no idea any of this happened.
That's what scares me most. The thing that could move his world is a man he's never heard of, in a city he's never been to, doing a job he doesn't know exists.
Nobody knows how big Japan goes here. They could sell $50 billion. They could sell $200 billion. The 2024 round was around $60 billion. This one already feels bigger. The "final warning" language is new. The Golden Week timing is deliberate. They picked a week when their own markets are shut so prices can't whip around at home.
$1.2 trillion. That's the number I want you to hold onto. $1.2 trillion in US bonds, sitting in Tokyo. More than any other country on the planet. More than China. That is the lever. That is what they can pull. And they just started pulling.
I don't have a tidy answer for you tonight. I don't think there is one. The Fed will meet. They'll talk. Powell will say words. But a piece of our rate — a real piece — is being decided in a building in Tokyo this week. By people we did not elect. About things we cannot see.
Keep an eye on the 10-year yield this morning. If it jumps, that's Japan. If your mortgage broker calls and says rates moved overnight, that's Japan. The cause won't be on the news. It will be a small line in the Wall Street Journal on page B6.
Watch that line. That's our line now too.
More on this tomorrow.
— Lauren
Editor, American Ledger
