Net-Net & NCAV
This is the deepest bargain Graham ever hunted: a company you can buy for less than its cash and near-cash minus every debt it owes— getting the buildings, the brand, and the profits thrown in for free. When it's real, it's the safest kind of cheap there is. The catch: it's real almost never — and knowing why is half the lesson.
01Where it comes from
This is early Graham — the purest, most quantitative form of value investing, laid out in Security Analysis (1934) and run for real in his own partnership through the Depression. The idea was almost absurdly cautious: ignore earnings, ignore the future, and ask only what shareholders would be left with if the company shut down tomorrow and turned its liquid assets to cash.
The young Warren Buffett called these “cigar butts” — beaten-down stocks with one free puff left in them. Buy a basket below liquidation value, and the arithmetic protects you even if the businesses are mediocre. Buffett later moved on to great companies at fair prices, but he always credited the net-net years for teaching him that the price you pay is a form of protection.
02The formula
Note the word total — you subtract allthe debt, long-term included, not just current liabilities. What's left is an ultra-conservative liquidation floor. Graham wanted a further cushion, so he only bought when the price fell below two-thirds of even that floor.
Buy below ⅔ of NCAV and, on paper, you're purchasing a dollar of liquid-assets-minus-all-debt for sixty-seven cents — and everything else the company owns costs you nothing. That's the whole thesis.
03What it looks like — and why you won't see it
First the mechanic, on a made-up company with round numbers so the logic is clear:
⅔ × NCAV = the buy line = $3.33 · trades at $3.00
At $3.00 you pay 60% of the $5.00 liquidation floor. If the company simply wound down, you'd expect ~$5 back on a $3 outlay — and the operating business is a free option on top. (Illustrative figures, not a real company — chosen to show the arithmetic.)
Now a real stock — Linamar, our through-line name — computed from its latest filings:
Linamar is genuinely cheap on the Graham Number, on EPV, on the reverse DCF — and yet its NCAV is negative.Once you subtract its long-term debt, current assets don't cover it. That's not a knock on Linamar; it's the norm. The overwhelming majority of healthy companies have negative NCAV — which is exactly why a true net-net is such a rare and telling signal.
In a bull market, net-nets all but vanish. When they suddenly appear by the dozen — 2009, March 2020 — it's usually telling you something about the market, not just the stock.
04When the net-net lies
A price below liquidation value sounds like free money. Sometimes it is. Often it's a warning the market is pricing in something the balance sheet hasn't caught up to yet.
Four traps in the bargain bin
- The melting ice cube. A company below NCAV is often burning cash. If it loses money every quarter, that liquidation floor is dropping while you hold — the value melts before you can realize it.
- Book value ≠ liquidation value. Receivables may not fully collect and inventory rarely sells at cost, so real NCAV is often lower than the reported figure. Discount the assets before you trust the floor.
- You can't actually buy much. Genuine net-nets are tiny, illiquid micro-caps. Building — or exiting — a position without moving the price is a real constraint the arithmetic ignores.
- It's a basket, not a bet. Graham bought net-nets by the dozen, expecting some to fail and the group to win. Concentrate into one and you've thrown away the diversification that made the strategy safe.
That's why the app treats a net-net as a rare flag, not a verdict — and always shows it beside the health and solvency checks (the Piotroski F-Score and Altman Z) that tell you whether the ice cube is melting. Cheap plus healthy is a bargain; cheap plus deteriorating is a trap wearing a bargain's clothes.
See the NCAV on any stock
The research page computes NCAV per share for any company and flags the rare true net-net when it appears — right next to the health checks that tell you whether the discount is opportunity or warning. All figures recompute from current filings, not a saved snapshot.