Japan Isn’t Losing Control

Japan Wrote the Playbook

Financial Social Media has a new obsession. Every macro account, every market commentator, every newsletter is posting some version of this:

“BREAKING: Japan’s 30-year bond yield hits a RECORD 3.43%! The Bank of Japan is losing control!”

The charts look scary. The commentary sounds alarming. The narrative writes itself: Japan is in trouble, inflation is spiraling, and the world’s third-largest economy is about to blow up.

There’s just one problem: this story fundamentally misreads what’s actually happening.

We have spent years criticizing the Bank of Japan for distorting the bond market. Now that yields are finally normalizing, instead of stepping back to observe, everyone is rushing to declare that the BoJ has lost control.

But here’s the thing: I think everyone has got this story backwards.

Let me explain, and I promise to keep this simple, even if you have never thought about Japanese bonds in your life.

What Is Actually Happening?

Let me translate the jargon.

When you hear “bond yields are surging,” what that really means is that investors are demanding higher interest rates to lend money to the Japanese government. Think of it as a credit card rate going up, except this is for government debt.

Japan’s 30-year bond now pays about 3.35% per year. That might not sound like much, but for Japan, a country that had negative interest rates until recently, this is historic. Governor Kazuo Ueda, the head of Japan’s central bank, just gave his clearest signal yet that they might raise interest rates again as soon as this month.

Conventional wisdom? Japan is finally losing its grip on inflation after decades of fighting deflation. The market is forcing its hand. Panic accordingly.

Or maybe it’s the opposite?

Japan Does Not Easily Lose Control

Here is what the doomsayers are missing: Japan’s central bank is the most experienced unconventional monetary operator on the planet.

They invented the playbook everyone else copied.

Quantitative easing? Japan did it first, back in 2001. Zero interest rates? Japan pioneered them. Negative interest rates? Japan went there in 2016. Yield curve control, literally setting a ceiling on bond yields? Japan ran that program for 8 years before ending it in 2024.

Consider the numbers:

• Japan’s central bank still owns approximately 50% of all Japanese government bonds, roughly $3.7 trillion worth.

• When you add in domestic banks, insurers, and pension funds, Japanese institutions hold over 80% of Japan’s debt.

• The BoJ’s balance sheet is approximately 110% of GDP, far larger than the Fed’s 23% or the ECB’s 41%.

This is not a market that can be attacked by foreign speculators. When you own half the market, you are the market.

So why would Japan suddenly lose control now, after successfully managing its bond market for decades?

The answer is: they wouldn’t. And they haven’t.

They are doing this on purpose.

The Yen Strategy

Japan has deliberately allowed long-term bond yields to rise for one simple reason: it wants a weaker yen.

Here is why that matters.

When bond yields rise in Japan, it changes how global money flows. A weaker yen makes Japanese exports cheaper for the rest of the world. Toyota, Sony, and Nintendo have all become more competitive in their exports.

When Toyota’s finance team crunches the numbers, they estimate they gain about $300 million in profit for every single yen the currency weakens against the dollar.

Japan reported a current account surplus of over $115 billion in the first half of this year. This marked the largest surplus for any fiscal half-year period since comparable data became available in 1985. A weaker yen is rocket fuel for Japanese exporters.

But there is a bigger game being played here.

The China Factor

A weaker yen does not just help Japan sell more cars and electronics abroad. It makes Japanese manufacturers more competitive against their biggest rival: China.

And the timing here is no coincidence.

Right now, Japan and China are in the middle of their worst diplomatic crisis since 2023. Japanese Prime Minister Sanae Takaichi recently suggested that a Chinese attack on Taiwan could threaten Japan’s survival and might justify a military response. Beijing’s reaction was swift and severe: it banned Japanese seafood imports, cancelled flights, suspended film releases, and issued travel warnings.

China is Japan’s second-largest export market. Last year, Japanese companies sold $125 billion worth of goods to China. But as that relationship deteriorates, Japan needs to find new advantages elsewhere.

A weaker yen is how they do it.

Japanese goods are becoming cheaper relative to Chinese alternatives, not just for American buyers, but also for customers throughout Southeast Asia, Europe, and Latin America. Just as political tensions make relying on China riskier, Japan becomes a more attractive alternative supplier.

Here Is Where It Gets Really Interesting: America Benefits Too

Now let us talk about something nobody in the Japan doom-and-gloom crowd is mentioning: what this means for U.S. markets.

Japan is not just any country when it comes to American finance. Japan is the largest foreign holder of U.S. Treasury bonds, with holdings of over $1.18 trillion. That is more than China, more than the UK, more than anyone else.

For decades, Japanese money has flowed into the U.S. through a strategy known as the carry trade.

Here is how it works in plain English:

Japanese investors borrow money in yen at near-zero interest rates. They convert that cheap yen into dollars. They buy American assets, such as Treasury bonds, stocks, and real estate, that offer much higher returns. Then they pocket the difference. You will ask how this works if Japan is raising interest rates. As long as short-term interest rates in Japan are lower than those in the US and the Yen devalues, this trade works well.

This trade has been one of the quiet pillars supporting American asset prices for years. Trillions of dollars in Japanese funds have flowed into U.S. stocks and bonds through this mechanism.

Now here is the key insight: a controlled, gradual weakening of the yen keeps this money flowing to America.

Think about it from a Japanese investor’s perspective. If you are a pension fund manager in Tokyo holding $50 million in U.S. stocks, you are watching two things: what the stocks are doing, and what the yen is doing.

If the yen weakens gradually and predictably, your U.S. investments look better. When you convert them back to yen, you get more yen for every dollar. That makes American assets more attractive, not less.

But if the yen suddenly strengthened, if Japan lost control and had to slam on the brakes, Japanese investors would face massive losses on their overseas holdings. They would be forced to sell American assets en masse to limit the damage.

By managing a slow yen decline rather than risking a sudden reversal, Japan is actually providing stability to U.S. markets.

Japanese institutional investors—including banks, pension funds, and life insurers—currently hold massive positions in U.S. stocks and bonds. As long as the yen weakens gradually, they have no reason to sell. Many will keep buying. And that means hundreds of billions of dollars continuing to flow into American capital markets.

The Quiet Restructuring

Now here is where I am going to speculate a bit, but stay with me.

What is to stop Japan’s central bank from doing something like this:

“Hey, Ministry of Finance, we currently hold about half of your government debt. What if we swap all those bonds for new 100-year bonds at 3%?”

On paper, nothing changes. The bonds would remain at the same aggregate value on the balance sheet. But the implications would be enormous. Japan would lock in low borrowing costs for a century. Refinancing risk? Gone. Interest rate risk? Gone. All that handwringing about Japan’s debt sustainability? Effectively resolved.

This is not as wild as it sounds. Japan already issues 40-year bonds. The Bank of Japan’s balance sheet is larger relative to its economy than those of any other major central bank, more than five times the Federal Reserve’s relative to U.S. GDP.

They are operating in territory no one else has explored. Why assume they are following the old rules?

Who Wins, Who Loses?

If I am right about what Japan is doing, here is how the scoreboard looks.

Winners:

• Japanese exporters benefit from lower global prices. The BoJ raises short-term interest rates while allowing the long end of the curve to widen.

• The Japanese government sees inflation reducing its real debt burden.

• Japanese pension funds enjoy an orderly adjustment without panic.

• U.S. capital markets continue to receive inflows from Japan’s giant institutional investors.

• The U.S. Treasury benefits as Japan keeps buying American debt.

• American consumers gain access to more Japanese goods at competitive prices.

Losers:

• China faces a more competitive Japan just as tensions flare, adding to the deflationary pressures already in place.

• Anyone betting on a Japan crisis that is not coming will be disappointed.

• Anyone who believes this is a canary in the coal mine and that Japan’s 30-year rise will have adverse knock-on effects will be let down.

The Bottom Line

The financial media believes Japan is losing control of its bond market, that the third-largest economy in the world is on the verge of crisis, and that you should be worried.

But something different is happening.

I see a country that has spent 30 years mastering unconventional monetary policy. A country that owns half its own bond market. A country with every tool it needs to manage this transition on its own terms.

I see Japan weakening its currency to boost competitiveness, restructure its debt, and navigate a dangerous geopolitical moment, all while continuing to finance American markets with trillions of dollars.

The yen is not crashing because Japan lost control.

The yen is weakening because Japan wants it to.

As I have said many times before: The Yen Never Lies.

It is telling you that Japan is not panicking. It is executing a strategy. And if you understand what they are doing, you will realize that this is one of the most consequential and underappreciated stories in global finance.