How a market the world forgot became the richest hunting ground for the serious value investor
There is a principle I have long held to be the bedrock of sound investment: that the investor's chief enemy is not the market, nor the economy, but his own emotions and his own ignorance. And nowhere on earth does this truth express itself more vividly today than in the Tokyo Stock Exchange, where thousands of publicly traded companies sit quietly, unnoticed, selling for less than the cash and receivables on their balance sheets — offering the disciplined buyer a margin of safety that would have made even the most cautious of analysts blush with excitement.
I want to tell you about these securities. I want to walk you through precisely how to find them, how to underwrite them, and why — if you approach them with discipline and patience — they represent one of the most compelling opportunities available to the thoughtful investor.
What Is a Net-Net, and Why Does It Matter?
Let me begin with first principles, as I always do.
A net-net — or, more precisely, a stock trading below its Net Current Asset Value (NCAV) — is a company whose current assets, after subtracting all liabilities (current and long-term), still exceeds the stock's market capitalization. The formula is simple:
NCAV = Current Assets − Total Liabilities
If NCAV per share exceeds the current share price, you are, in a very literal sense, buying a dollar for less than a dollar. You are acquiring a liquidation claim — the hard, tangible assets of a business — at a discount. You are not betting on future earnings growth, management brilliance, or a benevolent macro environment. You are simply recognizing a mathematical fact.
This is not speculation. This is arithmetic.
The beauty of the NCAV framework is that it provides a genuine floor. Even in the most pessimistic scenario — assuming the business earns nothing, grows nothing, and is wound down tomorrow — the buyer who purchased at a discount to NCAV stands to profit. The assets are there. They are not hypothetical.
Why Japan? The Anatomy of Persistent Undervaluation
Now you may ask: why would rational market participants allow such conditions to persist? In the United States, the forces of arbitrage are swift and merciless. A stock trading at 60 cents on the dollar rarely remains there for long. Activists descend, acquirers circle, insiders buy.
Japan has been different — and deliberately so.
For decades, Japanese corporate culture operated under a set of informal but powerful norms. Companies held equity stakes in one another — the so-called keiretsu cross-shareholding structure — not for financial return, but to cement business relationships and insulate management from outside pressure. Cash hoarded on balance sheets was a sign of prudence, not waste. Dividends were modest. Buybacks were rare. Shareholder return was, to put it plainly, an afterthought.
This structure resulted in weak oversight of management, limited shareholder activism, and a prioritization of the group over profitability — leading to lower ROEs, lower dividend payout ratios, and a slower pace of stock buybacks.
The result? As of March 2023, around 43% of companies in the TOPIX 500 traded below book value, and roughly 40% generated ROEs below 8%. By comparison, the S&P 500 posted a price-to-book ratio of 4.5 and an ROE of 18% in 2023.
And yet — and this is the critical insight — undervaluation without a catalyst is merely a curiosity. It is the change in conditions that converts a cheap stock into a profitable investment. A man who sells a $10 bill for $7 is making a gift to his buyer, but only if the buyer can eventually redeem it. In Japan, for many years, redemption seemed uncertain.
That is changing.
The Historical Record: Numbers Do Not Lie
Before we discuss the present, let us examine what the past teaches us.
Academic research into Japanese NCAV stocks — most notably work carried out by James Montier — produced results that should arrest the attention of every serious investor. The result of investing in Japanese net-nets from 1985 to 2007 was nothing short of fantastic. While Japanese stocks as a whole provided a compound annual growth rate of just 5%, Japanese net-nets beat the index by 200%, coming in at a CAGR of 20% for the period.
Pause on that figure. Twenty percent compounded annually — in a market that, over the same two-plus decades, was largely flat or declining in real terms. A country that endured the collapse of its asset bubble in 1990, a lost decade, deflationary stagnation, and near-zero interest rates. And yet the disciplined buyer of net-net stocks, deploying a strategy I first articulated in the 1930s, was rewarded handsomely.
By comparison, while US net nets performed better overall, they also benefited from a fantastic tailwind — yet despite the great investing environment from 1985 to 2007, American NCAV stocks merely doubled the market return, while Japanese NCAV stocks beat the Japanese index by 200%.
What this tells us is something subtle but important. The net-net strategy does not require a favorable macro environment to work. It does not require GDP growth, rising markets, or even competent management. It requires only that, over time, the gap between price and liquidation value closes — whether through business improvement, buybacks, dividends, takeovers, or simple mean reversion. In Japan, even with governance challenges, even without activists, even without management incentive to create shareholder value, the math eventually prevailed.
The Catalyst Has Arrived: Understanding the TSE Reform
The best time to fish, as any angler knows, is when the water is changing. And the water in Japan is changing dramatically.
In March 2023, the Tokyo Stock Exchange urged all listed companies to take "action to implement management that is conscious of cost of capital and stock price." This was not a polite suggestion. It was accompanied by a public naming mechanism — a list of compliant and non-compliant companies published monthly — and the implicit threat of exclusion from major indices. As of end 2024, over 90% of companies in the prime segment of the TSE have disclosed plans in compliance with the TSE request.
The effects are already measurable. The average price-to-book ratio across the Prime Market improved from 1.1 in July 2022 to 1.4 after three years, while ROE rose from 8.4% to 9.0%. The call has led to a significant increase in share buybacks in 2024, and some companies have officially committed to reducing cash on their balance sheets and returning excess capital to shareholders.
Cross-shareholdings — long the structural reason that Japanese stocks could remain cheap indefinitely — are unwinding at an accelerating pace. The pace of unwinding since 2023 has run about three times faster than before, with cross-shareholdings reduced by roughly 255 basis points of market capitalization. Major insurers have pledged to exit cross-held positions entirely. Shareholder returns surged via JPY 16 trillion in dividends and JPY 6 trillion in buybacks in 2025, with foreign ownership of Japanese equities now reaching 32%.
If this progress continues, ROEs could rise from 9–10% toward 13–15%, supporting a potential price-to-book re-rating of up to 75% over the medium term.
For the net-net investor, this is the ideal backdrop: a universe of cheap securities, now subject to regulatory pressure to close the price-to-value gap. The assets were always there. The catalyst has now appeared.
How to Underwrite a Japanese Net-Net: A Systematic Framework
Let me now turn to the practical question, which is the one that matters most. Knowing that cheap stocks exist is useless. Knowing which cheap stocks to buy, and why, is everything.
Here is how I would approach the underwriting process.
Step 1: Calculate NCAV with Appropriate Conservatism
The NCAV formula as stated — current assets minus total liabilities — is the starting point, not the ending point. Current assets are not all created equal. Cash is cash. But receivables are only cash if they are collected, and inventory is only cash if it is sold. I recommend applying haircuts to reflect these uncertainties:
• Cash and short-term investments: 100% of stated value
• Receivables: 75–80%
• Inventory: 50–66%
• Other current assets: 25–50%
A company whose NCAV is comprised primarily of cash is far superior to one whose NCAV is dominated by inventory or receivables. A key criterion for screening quality net-nets is ensuring that current assets consist largely of cash and short-term investments rather than less liquid working capital assets like accounts receivable and inventory.
After applying these haircuts, if the adjusted NCAV still exceeds the market price — ideally at a ratio of 1.5x or better — you have a genuine candidate.
Step 2: Verify the Business Is Not Burning Cash
A net-net is not a bargain if the company is systematically destroying the very assets that make it cheap. A firm trading at 70% of NCAV but losing 15% of its net current assets each year is not cheap — it is a melting ice cube. The margin of safety evaporates in proportion to the cash burn.
Examine the last three to five years of operating cash flow. You need not find a growing business. You need only find one that is stable or marginally profitable, preserving the asset base that underpins your thesis. A useful screening criterion is requiring TTM P/E of less than 10x — ensuring the company is profitable and cheap based on the performance of its operating business, not merely its balance sheet.
Step 3: Assess the Balance Sheet Composition
Beyond NCAV, examine the full balance sheet with skepticism and care.
Goodwill and intangibles: In a liquidation scenario, these are frequently worth nothing. I would eliminate them entirely from your asset calculations.
Pension liabilities: Japanese companies often carry significant unfunded pension obligations that do not appear prominently in headline liability figures. Search for them in the footnotes and deduct them fully.
Cross-shareholdings: A stock portfolio held by the company represents real value — but value that was historically illiquid and difficult to monetize. With the TSE reform actively accelerating the dissolution of these holdings, this is now an increasingly realizable asset. Note its value, but apply a modest discount for timing risk.
Real estate: Many older Japanese industrials carry land on their books at historical cost, which may dramatically understate current market value. This is an asset, not a liability — but it requires independent verification.
Step 4: Look for a Catalyst or Accept Diversification
I have long believed that the net-net strategy works best when deployed as a portfolio rather than in concentrated individual positions. The reason is straightforward: any single net-net may remain cheap for years. The portfolio of net-nets, however, mean-reverts reliably, because some positions will be taken over, some will return capital, some will improve their business, and some will simply be noticed by a market participant with a larger megaphone.
In Japan today, the catalysts are more plentiful than at any time in memory:
• TSE regulatory pressure on companies trading below book to disclose improvement plans
• Activist investors, once culturally marginalized, now welcomed with increasing frequency
• The NISA reform driving Japanese household savings from cash into equities
• Private equity funds hunting for take-private opportunities in a target-rich environment
Since 2023, a gradual stock market revaluation has been underway — and the dissolution of cross-shareholdings is expected to drive a chain of positive reactions. The shift of major shareholders from financial institutions to individuals and institutional investors will clarify evaluation criteria for management, who must become more conscious of stock price to gain voting support at annual general meetings.
When a specific catalyst is identifiable — a company announcing buybacks, a new independent director joining the board, a major cross-shareholder beginning to unwind its position — size the position accordingly.
Step 5: Demand Shareholder Returns as a Quality Indicator
In the absence of an imminent catalyst, a company returning capital to shareholders demonstrates that management recognizes the disparity between price and value, and is willing to act upon it. A combined dividend and stock buyback yield above 3% on a trailing twelve-month basis — roughly the average for the TSE — serves as a useful filter, eliminating companies with below-average capital returns to equity holders.
A company that earns money, holds more than its market cap in net current assets, and also returns capital through dividends or buybacks while trading at a single-digit P/E is, by any reasonable definition, a gift.
The Margin of Safety: Not Just a Number, but a Philosophy
I want to close with something more fundamental than screening criteria.
The margin of safety is not merely a quantitative buffer against being wrong about valuation. It is a philosophy — a recognition that the future is uncertain, that our estimates are imprecise, and that the prudent investor builds protection against his own fallibility into every purchase decision.
In Japan, the margin of safety is structural. You are not paying for earnings projections, for management promises, or for strategic optionality. You are paying, at a discount, for assets that already exist. Cash in a bank account. Receivables from customers. Inventory on a warehouse floor. These are things you can see and count. They do not require a forecast.
In academic studies, net-net stocks have been shown to yield the highest return of every available classic Benjamin Graham-styled investment strategy. The record of performance goes back at least until the 1920s. Returns typically show a 10–20% excess return over the market, translating to roughly a 20–30% annual return over the long term. Graham's NCAV strategy has also been successfully employed in practice by the likes of Warren Buffett, Seth Klarman, Walter Schloss, and Tweedy Browne.
The Japanese market today presents this opportunity not merely in isolated instances but by the hundreds. In a world where most developed equity markets trade at price-to-book ratios of 3x, 4x, even 5x or higher, where the concept of a margin of safety has been replaced by a premium for growth and narrative, Japan remains the rare place where the classical discipline still finds fertile ground.
Study the balance sheets. Apply the haircuts. Demand profitability. Require capital returns. Diversify across positions. Wait.
The math, as it always does, will do the rest.
