Net Current Asset Value (NCAV) Investing: Benjamin Graham's Deep Value Strategy
Benjamin Graham -- Columbia professor, father of security analysis, and the mentor who shaped Warren Buffett's early investment philosophy -- developed many valuation tools over his career. Most of them, including the P/E ratio framework and the margin of safety concept, have been widely adopted and refined over the decades.
But Graham's most aggressive strategy -- buying stocks at prices below the liquidation value of just their current assets -- remains relatively obscure. Known as net-net investing or NCAV investing, it was the strategy Graham credited with generating roughly 50% annual returns when he applied it systematically during the 1930s through the 1950s. Understanding how it works, why it worked, and where it might still apply today is one of the most illuminating exercises in deep value investing.
This article is for educational purposes only and does not constitute financial advice.
The NCAV Formula
The Net Current Asset Value formula is straightforward:
NCAV = Current Assets - Total Liabilities
Current assets are the short-term assets on a company's balance sheet: cash and equivalents, marketable securities, accounts receivable, and inventory. Total liabilities include both short-term liabilities (accounts payable, short-term debt, accrued expenses) and long-term liabilities (long-term debt, pension obligations, deferred tax liabilities).
The resulting number represents the value a business would have if you liquidated only its current assets and used the proceeds to pay off every liability -- leaving fixed assets (property, plants, equipment, intangible assets) completely out of the calculation, as if they were worth nothing.
Graham's threshold for investment was purchasing stocks at no more than 2/3 of NCAV. If a company had NCAV of $15 per share, he would buy only if the stock was available below $10. The logic: even if some current assets (particularly inventory and receivables) were worth less than their stated book value in a liquidation scenario, a purchase at 2/3 of NCAV provided enough cushion that the investor was essentially buying at a discount to realistic liquidation value.
The "Net-Net" Concept: What You Are Actually Buying
When you buy a stock at a discount to NCAV, you are essentially paying less for a company than you would receive if you immediately liquidated its current assets and paid off all its debts. You get the fixed assets -- property, equipment, brands, customer relationships, patent portfolios -- for free.
Graham called these "net-net" stocks because you were paying less than the net of current assets minus total liabilities. The terminology has stuck, and "net-nets" are now the standard term for stocks trading below NCAV.
The investment thesis is not particularly complicated. If a business trades at less than liquidation value of its most liquid assets, three outcomes are possible:
- Operational improvement: The business returns to profitability, cash accumulates on the balance sheet, and the stock price rises toward a more normal valuation multiple.
- Acquisition: A strategic or financial buyer recognizes the liquidation value and acquires the company at a premium to the current price (but still at a discount to NCAV, making it attractive from the buyer's perspective).
- Liquidation: Management or shareholders vote to wind down the business and distribute assets. Shareholders receive at least NCAV per share.
All three outcomes produce positive returns for the investor who bought below NCAV, assuming the business does not deteriorate faster than the discount to liquidation value protects against. That last caveat is critical and explains why filtering for financial quality within NCAV candidates matters.
Why Graham Reported ~50% Annual Returns
Graham managed an investment partnership from 1936 to 1956 alongside Jerome Newman. The partnership's returns were exceptional by any measure -- Graham later reported that the net-net strategy, applied consistently, generated approximately 50% annual returns over the period he used it most aggressively.
Several factors explain why the strategy worked so well during that era:
Extreme undervaluation post-Depression. The 1929-1932 market crash was so severe that hundreds of companies traded below liquidation value -- not because they were bad businesses, but because panic selling created prices divorced from any rational fundamental analysis. Graham was systematically buying businesses that a rational acquirer would have paid more to purchase outright.
Limited competition. In the 1930s and 1940s, professional money management was in its infancy. There were no Bloomberg terminals, no electronic databases of SEC filings, no hedge funds scanning for systematic mispricings. Graham had to compile financial data by hand from printed annual reports. The inefficiency was enormous, and a systematic, quantitative approach to screening for net-nets was genuinely innovative.
Diversified approach. Graham did not make concentrated bets on individual net-nets. He bought baskets of 30, 40, or 50 net-net stocks simultaneously. Individual net-nets are risky -- many are cheap because they are declining businesses that will never recover. But a diversified basket relies on the law of large numbers: most will underperform, some will recover, and a few will be acquired at significant premiums. The aggregate result, historically, has been strongly positive.
Why NCAV Investing Is Harder Today
The honest assessment is that NCAV investing in the United States is dramatically harder today than it was in Graham's era, for several reasons:
Markets are more efficient. Institutional investors, algorithmic screeners, and global capital flows mean that obvious mispricings in large-cap stocks are quickly arbitraged away. Pure net-nets -- stocks trading below current assets minus all liabilities -- are rare in the S&P 500. When they do appear (briefly, during severe market dislocations), they are resolved within days to weeks.
Accounting quality has declined in some sectors. Current assets in Graham's era were primarily cash, physical inventory, and receivables from trade customers. Today, "current assets" can include intangible software subscriptions, deferred contract costs, and fair-value-marked financial instruments. Not all current assets are equally liquid or reliable in a real liquidation scenario.
More screens, more competition. Every value investor with a Bloomberg terminal has access to NCAV screens. The moment a genuine net-net appears, multiple bidders compress the discount. The "free research" advantage Graham had from manually compiling data no longer exists.
Where NCAV Opportunities Still Exist
Despite the efficiency argument, NCAV opportunities have not disappeared entirely. They have migrated:
Japan. The Japanese stock market has historically had an unusually high concentration of net-net stocks due to corporate governance norms that prioritized balance sheet hoarding over shareholder returns. Companies would accumulate cash and low-yield investments on their balance sheets for decades, producing NCAV discounts that persisted for years. Recent Tokyo Stock Exchange governance reforms have begun to address this, but Japan still offers more net-net candidates per capita than most developed markets.
South Korea. Korean small-cap companies, particularly in heavy industries and traditional manufacturing, frequently trade near or below NCAV due to conglomerate discount, family ownership structures, and limited institutional coverage. The "Korea discount" is a well-documented phenomenon.
Emerging markets. Frontier and emerging market small-caps in markets with lower institutional coverage can offer genuine NCAV discounts. The risks are higher (currency, political, governance), but so is the potential return for investors with appropriate risk tolerance and information.
US micro-caps in cyclical troughs. Even in the US, genuine net-nets appear in micro-cap cyclical industries during sector-specific downturns -- shipping, junior mining, certain retail categories -- when market sentiment drives prices below any rational liquidation value. These windows are narrow and require rapid action.
The NCAV Screen: Practical Criteria
A systematic NCAV screen should apply the following criteria to identify candidates worth further research:
Primary criterion: Market cap < NCAV (current assets minus total liabilities), ideally at a price below 2/3 of NCAV for the Graham margin of safety.
Quality filters (to screen out value traps):
- Positive operating cash flow in 2 of the last 3 years. A company burning cash at an accelerating rate may not survive long enough for the NCAV discount to close. Look for evidence that the business can at least fund its own operations from internal sources.
- Net debt negative or low relative to NCAV. Excess cash is the most reliable component of NCAV. A company with $5 of cash per share and $3 of current liabilities per share has more reliable NCAV than one with $5 of inventory per share and $3 of current liabilities.
- Accounts receivable days below industry average. Inflated receivables that may be uncollectible overstate NCAV. Receivable days below industry median suggests higher quality current assets.
- No going concern opinion from auditors. An auditor-flagged going concern is a serious warning sign that the company may not survive to realize the NCAV value.
- Insider ownership above 10%. When insiders have substantial ownership, they have aligned interests in unlocking NCAV value through operational improvement, distribution, or sale.
Risks: Value Traps and Deteriorating Businesses
The most dangerous outcome in NCAV investing is the value trap -- a business that appears cheap on an asset basis but is systematically destroying value faster than the asset base can be liquidated. If a company burns $2 per share of cash per year and trades at a 20% discount to NCAV, the discount narrows not because the stock goes up but because NCAV falls. Two years later, the stock is at the same price but NCAV has declined 25%, and the investment is no longer a net-net at all.
This is why the quality filters above are not optional add-ons to the NCAV screen -- they are essential protections against the most common failure mode in deep value investing.
Graham himself acknowledged that net-net investing works as a statistical strategy applied to diversified baskets, not as a concentrated bet on individual companies. Without the diversification, the asymmetry of outcomes (most lose a little, some win big) does not work in the investor's favor.
For investors willing to apply the NCAV screen systematically, across a diversified list of candidates, with appropriate position sizing and the quality filters in place, the strategy has historically offered one of the highest risk-adjusted returns available in quantitative value investing -- even if the returns of Graham's era are unlikely to be replicated in modern US markets.
ValueMarkers' global screener covers 85,000+ securities including Japanese, Korean, and emerging market small-caps where NCAV opportunities remain more prevalent, enabling a systematic NCAV screen beyond the US-centric universe most retail investors rely on.