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L.23 · BEGINNER · 4 MIN

Net-Net Stocks and Cigar-Butt Investing

Benjamin Graham's most quantitative value-investing strategy — buying stocks at a discount to net current asset value — was the strategy that built much of his early academic reputation and shaped the first generation of his students, including Warren Buffett. Understanding the original mechanic, why it worked historically, and why most of the original opportunity has compressed in modern US large caps is part of the canon every serious value investor needs to absorb. The strategy is also the gateway to understanding why Buffett evolved out of it — the subject of a later module in this sequence.

Quiz · 5 questions ↓
§ 01

Net current asset value, often abbreviated NCAV, is computed as current assets minus all liabilities — including long-term debt — divided by shares outstanding. The intuition: NCAV approximates what shareholders would receive if the company were liquidated tomorrow at carrying values, after every creditor was paid in full. A stock trading below two-thirds of NCAV is buying current assets at a discount and receiving the entire long-term business for free.

§ 02
Net Current Asset Value per share = (Current Assets − Total Liabilities) ÷ Shares Outstanding
§ 03

The cigar-butt metaphor. Graham described net-net investing as picking up cigar butts off the street — one or two free puffs of value remained, and the discount to NCAV was the cushion that made the position survive even if the underlying business eventually went to zero. The strategy was never about finding great businesses; it was about finding businesses where the price was so far below the salvage value that capital could be recovered through asset realization even in the bear case.

§ 04
Era and marketNet-net availabilityWhy the inefficiency does or does not persist
United States small caps, 1930s-1960sWide universe of qualifying namesManual screening was rare and limited; small caps received little institutional coverage
United States large caps, modern eraAlmost no qualifying names outside brief crashesUniversal institutional screening closes obvious mispricings within days; intangible-heavy business models make NCAV a poor liquidation proxy
United States microcap, modern eraPockets persist with hard execution constraintsSub-coverage thresholds for institutional screens leave inefficiencies, but illiquidity, governance risk, and going-concern issues create real downside that historical studies often understate
Japanese small caps post 1990 bubbleSustained universe of qualifying namesDecades-long deflationary regime, conservative balance sheets with large cash holdings, and limited foreign investor attention preserved the inefficiency longer than US analogues
§ 05

Modern caveats every practitioner needs to absorb. First, intangible-heavy business models — software, brands, networks — generate value that does not appear on the balance sheet, which makes NCAV systematically understate liquidation value for some companies and overstate it for others. Second, severely distressed names often have a real reason for the discount that long-only investors should respect, including pending bankruptcy, unrecognized off-balance-sheet liabilities, or accounting issues that have not yet surfaced publicly. Third, position-level liquidity in microcap names is genuinely poor, and large-portfolio realized returns in modern net-net studies often diverge meaningfully from the paper returns of the screens. None of these caveats invalidates the strategy in its narrow modern habitats, but each one shrinks the universe the strategy can responsibly cover.

§ 06
Pull up the balance sheet of any one microcap company you have heard of and compute its NCAV per share using the formula above. Compare to current price. If the price is below two-thirds of NCAV, list three reasons the market might be assigning that discount — pending litigation, customer concentration, recent management turnover, accounting concerns, illiquidity. The exercise is not to identify a buy; it is to feel the gap between the screen result and the business reality the screen does not see.
§ 07
A microcap industrial trades at $4.20 per share against an NCAV of $7.10 per share — the screen flags it as a textbook net-net candidate. On further investigation, the most recent quarterly filing discloses an SEC inquiry into revenue recognition, two recent CFO departures, and a going-concern note from the auditor. Which of these is the most disciplined interpretation in light of the modern caveats?
§ 08

Net-net investing is part of the value-investing canon every serious investor should understand, both for its historical contribution to the field and for the narrower contexts in which it still works. The deeper lesson — why the most successful student of the strategy eventually moved away from it toward a different philosophy — is the subject of the Buffett-Munger evolution module later in this sequence.

Five questions · AI feedback

Sit with the ideas.

A reader has been told that Benjamin Graham's net-net strategy — buying stocks at a discount to net current asset value — earned strong historical returns. The reader plans to apply the strategy to large-cap United States equities today. Which response best captures why the practitioner consensus is that this plan is mostly unworkable in modern US large caps but may still work in narrower contexts?

Why:
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