TL;DR: Benjamin Graham's Net-Net Working Capital strategy buys stocks for less than two-thirds of their net current asset value (NCAV = current assets minus total liabilities). You're essentially buying a company for less than its liquidation value. Diversification across 20-30 positions is mandatory: 30-40% of individual net-nets underperform, but the total historically returns 15-20% per year.
Benjamin Graham's Net-Net strategy is the most conservative value investing approach. NCAV = Current Assets - Total Liabilities. If a stock trades below NCAV, you're buying it for less than the company could liquidate for TODAY, ignoring all fixed assets and future earnings. Graham called this the 'cigar butt' approach - one last profitable puff. Historically, portfolios of net-nets returned 20%+ annually, but these opportunities are rare and require patience. Most net-nets are troubled companies, so diversification across 20-30 positions is critical.
Core principles
- 1. Calculate NCAV = Current Assets - Total Liabilities
- 2. Buy only when price < 67% of NCAV (2/3 rule)
- 3. Diversify across 20-30 net-nets to manage risk
- 4. Sell when price reaches NCAV or after 2-3 years
- 01 Stock price < 67% of NCAV per share
- 02 Positive current assets
- 03 Company not in bankruptcy proceedings
- 04 Some track record of profitability
- 01 Price reaches NCAV (100% of liquidation value)
- 02 Hold for 2-3 years even if no price movement
- 03 Company enters bankruptcy or liquidation
Risks to respect
- Never invest more than 3-5% per net-net
- Require 20-30 positions for proper diversification
- Expect 30-40% of positions to fail
- Focus on aggregate portfolio returns
Risk management
- Never invest more than 3-5% per net-net
- Require 20-30 positions for proper diversification
- Expect 30-40% of positions to fail
- Focus on aggregate portfolio returns
Step-by- step plan
- 1
Learn to Calculate NCAV From Balance Sheets
Master the Net Current Asset Value calculation. Find total current assets (cash, receivables, inventory, prepaid expenses) on the balance sheet. Subtract ALL liabilities—both current and long-term. Divide by shares outstanding. Practice with 5-10 companies until you can do this quickly.
- 2
Screen for Net-Net Candidates
Use a stock screener to find companies trading below NCAV. Set filters for: market cap below NCAV, positive current assets, and stocks not in bankruptcy. Most screeners require custom formulas. Focus on developed markets (USA, Japan, Europe) where financial statements are reliable.
- 3
Apply Graham's Two-Thirds Rule
Only buy when the stock price is 67% or less of NCAV per share. This provides an additional 33% margin of safety. If NCAV is $10 per share, only buy at $6.67 or below. Never pay full NCAV—the discount is your protection against errors and deterioration.
- 4
Build a Diversified Portfolio of 20-30 Net-Nets
Net-net investing requires diversification because many positions will fail. Allocate roughly equal amounts to each position (3-5% per stock). Expect 30-40% of positions to decline significantly or go bankrupt. The winners must compensate for the losers.
- 5
Set Sell Rules and Exit Systematically
Sell when: (1) stock price reaches NCAV (100% of liquidation value), (2) you've held for 2-3 years without progress, or (3) the company enters formal bankruptcy. Replace sold positions with new net-net candidates. Track your portfolio NCAV quarterly.
In detail
The Cigar Butt Philosophy: One Last Profitable Puff
Benjamin Graham described net-net investing using a memorable metaphor: the cigar butt. Imagine finding a discarded cigar on the street with one puff remaining. It's not a pleasant experience, but that one puff is free—pure profit with zero cost. Net-net stocks are the market's cigar butts. These are companies so beaten down, so ignored, that they trade for less than their liquidation value. If the company shut down tomorrow and sold all current assets (cash, inventory, receivables) minus ALL liabilities, shareholders would receive MORE than the current stock price. Why would any company trade below liquidation value? Usually because they're losing money, in dying industries, or facing serious problems. But Graham discovered that buying a basket of these 'cigar butts' produced extraordinary returns—the gains from winners far exceeded the losses from bankruptcies. You don't need the companies to thrive; you just need them to not go completely bust.
The Net-Net Calculation: Finding Hidden Value
The Net Current Asset Value (NCAV) formula is deliberately conservative. Take current assets (cash, receivables, inventory) and subtract ALL liabilities—both current and long-term. Fixed assets like factories, real estate, and equipment count for nothing. Why so harsh? Graham knew that in distressed situations, fixed assets often sell for pennies on the dollar. That beautiful factory might fetch 20 cents per dollar in bankruptcy. But cash is cash, receivables can often be collected, and inventory has some value. By ignoring fixed assets entirely, Graham created a floor value that would hold even in worst-case liquidations. To calculate NCAV per share: (Current Assets - Total Liabilities) ÷ Shares Outstanding. If a stock trades below this number, you're literally buying dollars for less than a dollar. Graham's rule was to only buy when price was 67% or less of NCAV—a built-in 33% margin of safety on top of an already ultra-conservative valuation.
Why Do Net-Nets Exist? The Psychology of Abandonment
Rational markets shouldn't allow stocks to trade below liquidation value. Yet they consistently do. Why? The answer lies in investor psychology and institutional constraints. Institutional investors—mutual funds, pension funds, hedge funds—cannot buy most net-nets. These stocks are too small, too illiquid, and too 'ugly' for their mandates. Fund managers risk career damage owning such troubled companies. Analysts don't cover them. Index funds can't own them. The entire professional investing world is designed to avoid exactly these opportunities. Meanwhile, individual investors flee when companies announce bad news. Price drops create more selling, which creates more price drops. Eventually, stocks become orphaned—no institutions, no analyst coverage, no media attention. That's when prices can fall below even the most conservative intrinsic value. The very features that make net-nets unattractive to professionals create the opportunity for individual investors willing to do the work.
Walter Schloss: The Master Net-Net Investor
If you want proof that net-net investing works, study Walter Schloss. A Graham disciple who worked alongside Warren Buffett at Graham-Newman, Schloss ran his own fund for 45 years—averaging 15.3% annually versus 10% for the S&P 500. Schloss's method was remarkably simple. He looked for stocks trading below book value, preferably below net current asset value. He didn't visit companies or talk to management. He just read balance sheets, bought cheap stocks, and held a diversified portfolio of 60-100 positions. When stocks reached fair value, he sold and bought new net-nets. Schloss worked from a small office with no computer (even in the 1990s), no staff, and almost no expenses. His total research time was about 4 hours per day. Yet he outperformed 99% of professional investors across nearly five decades. The strategy works—but it requires discipline, patience, and the willingness to own truly unloved companies.
Key takeaways
- Net-net investing is the ultimate margin of safety—you're buying companies for less than their liquidation value, ignoring all fixed assets and future earnings potential.
- The NCAV formula (Current Assets - Total Liabilities) creates a floor value that holds even in bankruptcy. Graham's two-thirds rule adds another 33% cushion on top.
- Net-nets exist because institutional investors cannot buy them—they're too small, too ugly, and too risky for professional mandates. This creates opportunity for disciplined individual investors.
- Walter Schloss proved the strategy works: 45 years of 15.3% annual returns using nothing but balance sheets and patience. Diversification across 20-30 positions is essential because many will fail.
Frequently asked questions
How do I calculate the NCAV of a stock? +
NCAV = current assets − total liabilities. Divide by the number of shares outstanding for NCAV per share. Only buy if the stock price is below 67% of NCAV per share. Find balance sheet data in the latest annual report or via Tikr, Macrotrends, or Wisesheets.
Are there still net-net stocks to find in Europe? +
In Europe, true net-nets are rare but exist, often among small Japanese stocks (Japan historically has many net-nets), Korean stocks, or small European industrial companies during broad bear markets. Tools like Tikr, Gurufocus, or an NCAV screener on Finviz (for US) help searching.
Why do 30-40% of net-net positions fail? +
Net-net stocks are cheap because the market suspects problems: deteriorating profitability, outdated business models, poor governance. Some stocks remain undervalued for years or go bankrupt. Graham's solution: diversification. The 60-70% that does perform more than compensates for the failures.
Historical context
Graham's net-net portfolios returned 20%+ annually (1930s-1950s)
- Advanced accounting knowledge
- High risk tolerance
- Extreme patience
- Stock screener
- Balance sheet analysis
- NCAV calculator