Last Tuesday, I received an email from Thomas, a Macro Notes Premium member based in Singapore. He wanted to share his portfolio performance: +47% over the past 18 months while the S&P was up 28%.
Nothing unusual there. What caught my attention was his next line:
“The stocks that crushed it for me this past year? They’re almost all Japanese. I wasn’t even trying to build a Japan thesis—it just kept working.”
I’ll be honest—my first reaction was skepticism. Japan? The country that’s been in a deflationary spiral since 1990? The poster child for demographic collapse? The market that’s been a graveyard for foreign investors for three decades?
But Thomas isn’t your typical investor. He’s a former healthcare executive who spent five years living in Tokyo and has watched Japan’s quiet transformation up close. So instead of dismissing it, I asked him to walk me through his thesis.
What he told me over the next hour completely shifted my perspective on one of the most misunderstood—and potentially profitable—investment themes of the next decade.
We decided to collaborate on a deep dive into what we’re calling “The Japan Playbook.” Not because Japan itself will boom (though the Nikkei hitting all-time highs suggests something’s changing), but because Japan is 15-20 years ahead of the rest of the developed world on the single most important macro trend of our lifetime:
How to survive—and profit from—demographic winter.
The Setup: A Crisis Everyone Sees Coming (But No One Wants to Face)
Here are the numbers that should terrify every government official in the Western world:
Japan’s median age: 49.8 years (as of 2025)
South Korea’s median age: 45.6 years
Italy’s median age: 48.2 years
Germany’s median age: 45.5 years
United States’ median age: 38.5 years (and climbing fast)
By 2030, one in four Japanese will be over 75. By 2040, the same demographic catastrophe hits South Korea. By 2050, most of Europe follows.
This isn’t a Japan problem. Japan is just patient zero.
The difference? Japan has been forced to deal with this reality for 25 years. No choice but to innovate, adapt, and build solutions. No immigration surge was coming to save them. No baby boom revival. No magical political fix.
While the West debates policy solutions and kicks the demographic can down the road, Japan has been quietly engineering its way out of the crisis.
And as Thomas showed me, the companies building these solutions represent some of the most compelling—and underappreciated—investment opportunities available today.
What Japan Figured Out (That We’re About to Learn the Hard Way)
When your workforce shrinks by 1% every single year and your elderly population explodes, three things become inevitable:
1. Labor becomes impossibly scarce and expensive
Japan’s unemployment rate sits at just 2.6% as of late 2025. Not because the economy is booming, but because there literally aren’t enough workers. Restaurants close early. Convenience stores can’t find staff. Construction projects get delayed for years.
The solution isn’t “try harder to recruit.” The solution is eliminate the need for human labor entirely.
2. The cost of elderly care becomes an existential fiscal crisis
Japan already spends over 11% of GDP on healthcare. With demographics worsening every year, this becomes mathematically unsustainable within a decade without radical innovation.
The solution isn’t “build more nursing homes.” The solution is technology that allows elderly people to stay independent longer, and care systems that require 1/10th the human labor.
3. Deflation becomes structural, not cyclical
When your population shrinks and ages, consumption falls. When consumption falls, prices fall. When prices fall, people delay purchases. It’s a vicious cycle.
The solution isn’t monetary policy—Japan tried that for 30 years and barely moved the needle. The solution is productivity growth so extreme it offsets demographic drag.
Japan has been forced to become the world’s laboratory for solving these three problems simultaneously.
And they’ve made shocking progress.
The Japanese Companies You’ve Never Heard Of (That Are Quietly Winning)
This is where Thomas’s portfolio gets interesting.
When I asked him to break down his Japanese holdings, I expected Sony, Toyota, maybe some Nintendo. The usual suspects American investors know.
Instead, he rattled off names I had to Google:
Cyberdyne (not the Terminator company)—robotics exoskeletons for elderly care
Fanuc—the world’s largest maker of industrial automation robots
Keyence—industrial sensors with 50%+ operating margins
M3—healthcare data platform serving 90% of Japanese doctors
MonotaRO—the “Amazon for factories” with zero debt and 25% ROI
These aren’t sexy tech startups. They’re boring, profitable, industrial companies solving real problems with real technology.
And here’s what shocked me most: Their valuations are absurdly cheap compared to American equivalents.
Keyence—a company with 50% operating margins, 20% revenue growth, and an unassailable competitive moat—trades at 35x earnings. In America, a company with that profile would trade at 60-80x minimum.
Why the disconnect?
Because for 30 years, international investors have been burned by Japan. They’ve learned to ignore it entirely. The entire market trades at a “Japan discount” that assumes nothing will ever change.
But Thomas’s thesis—and after digging in, I now agree—is that something fundamental has changed.
The Quiet Revolution: What’s Different This Time
After decades of stagnation, three massive shifts are converging in Japan right now:
Shift #1: Corporate governance reform is finally real
The Tokyo Stock Exchange is literally delisting companies that don’t improve capital efficiency. Companies are being forced to buy back shares, increase dividends, and stop hoarding cash. It’s like if the SEC actually had teeth.
Warren Buffett noticed. As of March 2025, he’s invested over $23.5 billion in Japanese trading houses—his biggest foreign investment ever. He owns between 8.5% and 9.8% of each of the five major sogo shosha, and has stated he expects to hold these positions for the next 50 years.
Shift #2: The weak yen is triggering a manufacturing renaissance
The yen has collapsed from 100 to 150 against the dollar over the past few years. Japanese manufacturers are suddenly hyper-competitive again globally. Factories are reopening. Export growth is back.
Shift #3: The “automation imperative” is creating world-leading companies
This is the big one. Because Japan had to automate or die, they’re now 10-15 years ahead of everyone else in industrial robotics, elderly care tech, and labor-saving innovation.
And now the rest of the world is entering the exact same demographic trap Japan fell into 25 years ago.
Suddenly, Japanese solutions to Japanese problems are about to become global solutions to global problems.
The Thesis: Japan’s Crisis Is America’s (and Europe’s, and China’s) Future
Here’s what Thomas and I discovered in our research:
The median age in the United States will hit 42 by 2030. Europe will be even older. Even China—despite 1.4 billion people—will have a median age of 47 by 2040.
Every developed economy is turning Japanese.
And when they do, they’ll face the same impossible equation:
Shrinking workforce
Exploding elderly care costs
Structural labor shortages
Productivity collapse without automation
The companies that solved these problems in Japan won’t just dominate the Japanese market. They’ll export their solutions globally to countries facing identical crises.
This is why Thomas’s portfolio is so heavily weighted to Japan. Not because he’s bullish on Japanese GDP growth. But because Japan’s crisis forced the creation of companies that will thrive everywhere else as the same crisis spreads.
In the premium section of this report, Thomas and I break down:
The 12 Japanese companies positioned to dominate the global aging economy (with specific entry prices, catalysts, and risk analysis)
Why robots aren’t the answer everyone thinks (and what actually works in elderly care)
The “automation arbitrage” trade: How to profit as Western companies scramble to catch up to Japanese innovation
The three categories where Japan has an unbeatable 10-year head start (and the specific stocks in each)
How to play this theme beyond Japan: The American and European companies licensing Japanese technology
The demographic timebomb calendar: Which countries hit crisis mode next (and when to position)
This isn’t a “bet on Japan” trade. It’s a bet that the entire developed world is about to desperately need the solutions Japan has spent 25 years perfecting.
And that the companies providing those solutions are sitting at absurd valuations because global investors still think “Japan = stagnation.”
After that initial conversation, I asked Thomas to share his full research. He’d spent three months digging through financials, talking to Japanese company management teams, and mapping out exactly which companies are positioned to profit as the rest of the world faces Japan’s demographic reality.
What he sent me completely validated his thesis. These aren’t speculative AI startups or biotech moonshots. These are profitable, cash-generative industrial companies trading at valuations that would be impossible in the U.S. market.
Here’s the full breakdown of Thomas’s Japan Playbook.