The Old Playbook is Broken

The Shift in Capital

The yen has been fascinating lately, and I think the market is finally reaching an important turning point.

Japan just spent ¥15.4 trillion, or about $96.5 billion, supporting the yen in the foreign-exchange market. Yet the currency has slipped back toward ¥160 per dollar. The intervention worked for a moment, but it did not fix the underlying problem. Japan cannot permanently defend the yen with foreign-exchange reserves if the economics keep pushing money in the opposite direction.

Now the Bank of Japan is facing pressure to raise rates again. Economists increasingly expect the policy rate to reach 1.25% in September, after reaching 1% in June. At the same time, Japan's 10-year government bond yield has reached 3%, its highest level in roughly three decades.

This changes how I think about Japan.

For years, the easy Japan trade was simple: buy exporters, enjoy a weak yen, and wait for corporate earnings to improve.

I don't think that is the best trade anymore.

The next phase is about whether Japan can turn higher rates, a stronger currency, and corporate reform into higher returns on capital.

After watching this cycle, I now look at Japan through four pillars: Macro dictates the valuation water level, fundamentals provide the anchor for value, news creates short-term volatility, and execution determines whether the structural story actually becomes shareholder returns.

1. Macro dictates what the market is willing to pay.

The biggest change is happening in the interest-rate differential.

Japan spent decades with extremely low rates while the U.S. offered much higher yields. That made the yen an attractive funding currency. Investors could borrow yen cheaply, buy higher-yielding assets elsewhere, and leave Japan with relatively little incentive to hold yen.

That trade is now becoming less attractive.

The BOJ has already raised rates to 1%. Markets increasingly expect another move to 1.25% in September, while pressure is building for further increases. The problem is that the yen has still weakened toward ¥160 despite massive intervention.

This tells me something important.

The currency cannot be fixed by intervention alone.

The market wants to see a change in the underlying economics.

Higher Japanese rates. Higher domestic returns. Better capital allocation. Less dependence on a permanently weak currency.

The macro water level is moving.

And when it moves, different Japanese companies benefit.

2. Fundamentals dictate what a company is actually worth.

This is where the Japan story gets much more interesting.

The old Japan thesis was heavily dependent on exporters.

A weak yen makes every dollar of overseas revenue worth more yen. That creates an easy earnings boost without necessarily improving the underlying business.

But that benefit works in reverse when the yen strengthens.

Toyota is a perfect example.

Toyota's April-June revenue increased 10.4% to ¥13.5 trillion, but operating income declined from ¥1.166 trillion to ¥1.063 trillion. The company is already dealing with tariffs, global competition, and currency sensitivity. Japanese automakers have also been using yen assumptions around ¥150-¥160 per dollar in their forecasts.

So I don't want to own an exporter simply because the yen is weak.

I want to know what happens when the yen stops being weak.

That is a much better test of business quality.

Honda shows the other side of the equation. Its April-June operating profit jumped to ¥530.8 billion, and it raised its full-year operating-profit forecast by 30% to ¥650 billion. But part of that improvement came from the weaker yen, and Honda still expects another ¥520 billion of restructuring costs this fiscal year after its massive EV restructuring.

The lesson is simple.

A weak yen can make a weak business look better.

A strong yen forces management to become better.

3. News dictates short-term volatility.

The yen has become a headline machine.

Intervention. U.S. Treasury comments. BOJ speeches. Fed policy. Oil prices. Japanese fiscal policy. Every headline can move the currency.

Japan and the U.S. have now agreed to continue coordinating around orderly yen movements, after the extraordinary intervention last month. U.S. Treasury Secretary Scott Bessent has also publicly signaled that he expects Japan and the BOJ to take steps that lead to a stronger yen.

That creates enormous short-term volatility.

But I don't want to trade every headline.

When news breaks, I ask one question:

Will this actually change the economics?

A ¥96.5 billion intervention can move the exchange rate temporarily.

A higher BOJ policy rate changes the return investors receive from holding yen assets.

A 3% Japanese 10-year government bond yield changes the opportunity cost of capital.

A higher domestic wage base changes consumption.

A sustained improvement in corporate ROIC changes equity valuations.

These are different levels of the same story.

The market tends to focus on the currency.

I am watching the capital cycle underneath it.

4. Execution is everything.

Japan has spent years talking about corporate reform.

Now the test is whether reform continues when the easy currency tailwind disappears.

The Tokyo Stock Exchange has pushed companies to focus on the cost of capital and sustainable profitability rather than simply using buybacks as a one-time response. Japanese buybacks have already reached extraordinary levels, with fiscal 2025 buybacks on track for a record high.

That matters because the next phase of Japanese equities should not simply be:

"Yen goes up, stocks go down."

It should be:

"Yen goes up, weaker businesses lose their currency cushion, while efficient companies use capital more intelligently."

That is a much more interesting investment setup.

The Japan Post-Mortem: The weak-yen trade is becoming less reliable.

For years, investors could make a relatively simple bet.

The BOJ keeps rates low.

The yen stays weak.

Japanese exporters earn more.

Corporate profits rise.

Stocks rise.

That playbook worked because the currency itself was doing part of the work.

But the environment is changing.

Japan's companies are now operating in an economy where domestic capital is becoming more expensive. The BOJ is normalizing policy. JGB yields are rising. Foreign investors are paying more attention to Japanese capital efficiency.

At the same time, Japan's second-quarter corporate capital spending increased 1.6% year over year, up from almost zero growth in the previous quarter. Corporate recurring profits reached a record ¥44.7 trillion, while sales rose 5.9%.

This is important.

The Japanese economy is not simply collapsing under a stronger currency.

Companies are still investing.

The question is where that investment goes.

The real bottleneck is no longer access to cheap money.

It is whether Japanese companies can generate attractive returns on that money.

That is the transition I am watching.

The Megabanks Are the Cleanest Expression of This Trade.

If the yen recovery is real, I don't think the megabanks are a side story.

They may actually be one of the cleanest ways to express the structural change.

MUFG's first-quarter net profit jumped 48% year over year to ¥809.4 billion. Its domestic loan spread increased to 1.15% from 0.95%, showing exactly what happens when Japan moves away from zero-rate economics.

Mizuho reported an even more dramatic first-quarter result. Net profit rose 45% to ¥422.9 billion, while its domestic loan-deposit margin increased to 1.26% from 1.10%. Mizuho also doubled its share buyback program to ¥200 billion.

This is the part of the Japan story I find most compelling.

A stronger yen hurts an exporter when foreign revenue gets translated back into fewer yen.

A higher rate can help a bank because the bank can earn more on its domestic assets.

The value migration is therefore moving.

From:

Weak yen → exporter translation gains

Toward:

Higher rates → bank margins → stronger cash flow → buybacks → higher capital efficiency

That is a very different Japanese equity market.

Toyota: Still powerful, but more currency-sensitive.

Toyota remains one of Japan's highest-quality global companies.

But I would not automatically treat it as a pure beneficiary of Japan's structural recovery.

Its scale, manufacturing discipline, hybrid leadership, and global footprint are enormous advantages.

But the investment question is changing.

How much of Toyota's earnings are generated by genuine operating improvement versus a favorable currency?

If the yen strengthens from ¥160 toward ¥145, the translation benefit becomes a headwind.

At the same time, tariffs and Chinese EV competition remain real issues.

Toyota can survive this.

But survival is not the same as excess returns.

MUFG: The beneficiary of normalization.

MUFG is different.

Its first-quarter numbers show that higher domestic rates are already flowing into the income statement.

Net profit rose 48%.

Domestic loan spreads widened.

Loan demand remained strong.

And the bank also benefited from its ownership of Morgan Stanley and strength in global markets.

This gives me multiple engines rather than a single currency tailwind.

If Japan normalizes rates gradually, MUFG can benefit from better domestic margins.

If corporate investment accelerates, lending demand can improve.

If capital markets remain active, its global businesses can contribute.

That is much closer to the type of earnings durability I want.

Mizuho: The capital-return story.

Mizuho may be even more interesting from a shareholder-return perspective.

Profit rose 45%.

The domestic loan-deposit margin widened.

Non-interest income increased.

And management doubled the buyback program to ¥200 billion.

This is exactly what Japan's corporate reform thesis should eventually look like.

Not simply "we bought back shares."

But:

Higher earnings.

Higher ROE.

Better capital allocation.

More shareholder returns.

Less excess balance-sheet capital.

That is the second-order effect I care about.

Honda: The warning label.

Honda is where I remain cautious.

The headline looks excellent.

Operating profit jumped.

Full-year guidance increased.

The company is benefiting from a favorable currency environment.

But underneath that, the business is still dealing with EV restructuring and intense competition in China.

Honda expects another ¥520 billion of restructuring costs this year.

So I would not confuse a strong quarter with a completed turnaround.

The yen can help Honda.

But the yen cannot solve the strategic problem.

That distinction matters.

The New Japan Trade

The most important shift is not actually the yen.

It is the direction of capital.

For decades, Japan was the country where capital was cheap and corporate returns were mediocre.

Now capital is becoming more expensive.

That sounds negative.

I think it can actually be healthy.

When money costs almost nothing, companies can survive without being particularly efficient.

When money costs something, management has to answer harder questions.

Why are you holding this cash?

Why is this business earning less than its cost of capital?

Why are you investing here?

Why aren't you buying back shares?

Why are you carrying this cross-shareholding?

Why does this division exist?

Those questions are exactly what Japanese corporate governance reform has been trying to force.

The yen recovery therefore creates a fascinating feedback loop.

A stronger yen removes some of the artificial earnings support from exporters.

Higher rates increase the value of capital.

Corporate reform forces management to allocate that capital more efficiently.

Buybacks reduce excess equity.

Better ROIC supports higher valuations.

And stronger domestic financial institutions capture more of the economics.

That is the second-order reality.

I am not betting on Japan simply because I think the yen will rise.

I am betting selectively on what happens when Japan can no longer hide behind a weak currency.

My positioning is increasingly simple.

I want the banks that benefit from normalization.

I want companies that can generate strong ROIC without requiring a ¥160 dollar.

I want businesses with pricing power, capital discipline, and recurring cash flow.

And I am more cautious with companies whose earnings depend heavily on currency translation.

The four KPIs I am watching now are simple:

1. USD/JPY — Is the currency actually stabilizing below the intervention zone?

2. BOJ policy rate and JGB yields — Is Japan truly normalizing the price of capital?

3. Domestic loan spreads and corporate ROIC — Is normalization creating real earnings?

4. Buybacks and free cash flow — Are companies returning the new economic gains to shareholders?

The market is still asking:

"Will the yen finally strengthen?"

I think the better question is:

"Who makes more money when Japan no longer needs a weak yen?"

That is where the next Japanese capital cycle will be decided.