Table of Contents

net_net_investing

The 30-Second Summary

What is Net-Net Investing? A Plain English Definition

Imagine you're at a massive garage sale for businesses. Most items are priced based on their future potential or sentimental value. But in a dusty, forgotten corner, you find a locked cash box. The seller, distracted and pessimistic, is willing to sell you the entire box for just $60. You don't have the key, but you can see through a small crack that there's at least a crisp $100 bill inside, along with some loose change. You buy it instantly. Why? Because you're not speculating on what the box might be worth someday. You're buying it for less than the cold, hard cash already sitting inside it. The business itself—the brand, the future sales, the management—is essentially free. That, in a nutshell, is net-net investing. It's a quantitative investment strategy pioneered by Benjamin Graham, the father of value investing and Warren Buffett's mentor. He called it his “cigar butt” approach. He looked for companies that were like discarded cigar butts found on the street—unloved, ugly, and thrown away by others, but still having one good, free puff left in them. A “net-net” is a company whose stock market valuation (its market cap) is so low that it's trading for less than its Net Current Asset Value (NCAV). NCAV is a very conservative calculation of a company's liquidation value. It's what would be left over for shareholders if the company closed down, sold all its easily-convertible assets (like cash, inventory, and accounts receivable), and paid off every single one of its debts, from the smallest utility bill to the largest long-term loan. When you buy a net-net, you are essentially buying a dollar's worth of assets for 50 or 60 cents. The potential for the business to turn around and become successful is just a bonus—a free lottery ticket. Your primary protection, your margin_of_safety, comes from the pile of tangible assets you bought at a steep discount.

“It is the last of the three that has been far and away the most profitable of all our transactions, in a variety of securities and all sorts of markets. The 'net-net' approach is a ridiculously simple one.” - Benjamin Graham, 1972

Why It Matters to a Value Investor

For a true value investor, net-net investing represents the purest, most undiluted form of the craft. It's a strategy that strips away all the noise, narrative, and emotion that so often leads investors astray. Here’s why it's a cornerstone concept:

How to Calculate and Interpret Net-Net Investing

The process is methodical and quantitative, designed to be a clear-eyed assessment of rock-bottom value.

The Formula

The core of net-net investing is a value called Net Current Asset Value (NCAV). First, you calculate NCAV: `NCAV = Current Assets - Total Liabilities` Let's break that down:

Once you have the NCAV, the next step is to find the NCAV per share: `NCAV per Share = NCAV / Shares Outstanding` Finally, Benjamin Graham’s buying rule was not just to buy below NCAV, but to demand a significant discount to it. This provides an even greater margin of safety. The Net-Net Buy Signal: `Stock Price < (2/3) * NCAV per Share` In other words, you are looking for stocks trading for less than 66 cents on the dollar of their net current asset value.

Interpreting the Result

Finding a company that meets this strict criterion tells you several things:

As a strategy, net-net investing should be approached as a portfolio game. You should aim to buy a basket of 10-20 different net-nets. Some will fail, burning through their cash and eventually going bankrupt. Others will stagnate. But historically, a diversified basket has seen a few big winners and enough moderate successes to produce excellent overall returns, as the statistical edge plays out over time.

A Practical Example

Let's analyze a hypothetical company, “Forgotten Fasteners Inc. (FFI)“, a small industrial parts manufacturer that has fallen on hard times. The market is panicking about FFI's declining sales and a new, more efficient competitor. The stock price has collapsed to $4.00 per share. Here is a simplified look at FFI's balance sheet:

Forgotten Fasteners Inc. - Balance Sheet
Assets Liabilities & Equity
Current Assets Current Liabilities
Cash $10,000,000 Accounts Payable $5,000,000
Accounts Receivable $15,000,000 Short-term Debt $3,000,000
Inventory $20,000,000 Total Current Liabilities $8,000,000
Total Current Assets $45,000,000
Long-Term Liabilities
Non-Current Assets Long-term Debt $12,000,000
Property, Plant & Equipment (Net) $25,000,000
Total Assets $70,000,000 Total Liabilities $20,000,000

The company also reports that it has 5,000,000 shares outstanding. Let's apply the net-net formula: Step 1: Calculate Net Current Asset Value (NCAV)

NCAV = Total Current Assets - Total Liabilities
NCAV = $45,000,000 - $20,000,000
NCAV = $25,000,000

This $25 million is the theoretical cash value left for shareholders if FFI were to close up shop today. Step 2: Calculate NCAV per Share

NCAV per Share = NCAV / Shares Outstanding
NCAV per Share = $25,000,000 / 5,000,000 shares
NCAV per Share = $5.00

The company holds $5.00 per share in net current assets. Step 3: Apply the Graham Buying Rule Graham advised buying only when the price is below two-thirds of the NCAV per share.

Graham Buy Price = (2/3) * NCAV per Share
Graham Buy Price = 0.67 * $5.00
Graham Buy Price = $3.35

Conclusion: The current stock price of FFI is $4.00 per share. This is below the NCAV per share of $5.00, making it an interesting prospect. However, it is not below Graham's stricter buying threshold of $3.35. A disciplined net-net investor would put FFI on a watchlist. They would not buy at $4.00 because it doesn't offer a large enough margin_of_safety. If the market pessimism deepens and the price falls to, say, $3.00, it would then become a classic net-net buying opportunity. At that price, you'd be buying $5.00 worth of net current assets for only $3.00, with the entire factory and equipment (the “Non-Current Assets”) thrown in for free.

Advantages and Limitations

Strengths

Weaknesses & Common Pitfalls