Investing: why I never mix quality and price

2026-06-12 · By Lubin Danilo, founder of Lubin Investment

A good company and a good investment are two different things. Quality measures how solid the business is. Price measures what you pay for that solidity. Mixing the two is the number one mistake. My method judges them separately, quality first, price second. Here is how, and why it changes everything.

• Quality and price answer two different questions, never the same one.
• A great company bought too expensive is still a bad investment.
• A cheap but declining company is a trap, not a bargain (a value trap).
• My rule: I judge quality first, price only afterward.
• The box to aim for: high quality AND low price, at the same time.

The most expensive mistake

« It is a great company, so it is a good investment. » That sentence has ruined more portfolios than any crash. Because it confuses two unrelated things: the quality of a company, and the quality of an investment.

A quality company is a solid business: profitable, cash generating, resilient in downturns. A good investment is something else: it is buying something for less than it is worth. You can own the best company in the world and still make a poor investment, simply by overpaying.

Two questions, never just one

That is why I always ask two separate questions. First: is this a good company? There I look at quality, on objective criteria: the consistency of free cash flow (the money that truly remains once bills are paid), margins, balance sheet strength, return on capital. I sum it up as a score out of 10.

The second question, and only after: is this a good price? There I look at valuation, meaning how much I pay for what the company generates. The simplest tool is P/FCF (price-to-free-cash-flow): the share price divided by annual free cash flow. A P/FCF of 12 means you pay twelve years of that cash.

Real case: the great company too expensive

Take Adobe before its latest results. An elite company, dominant, huge margins. Everyone knows it. And because everyone knows it, the stock long traded above 30 times its free cash flow. At that price, even a wonderful company can stall for years, because the good news is already in the price. You paid the future in advance.

That is the number one trap: confusing an admirable company with a stock to buy now. Admiration is not a strategy. Price is.

Real case: the opposite trap, the value trap

The other trap is symmetrical. You find a stock at 4 times its free cash flow. It looks cheap, the reflex is: « it is undervalued, I buy ». Except sometimes the price is low for a good reason. The company is losing market share, its margins are eroding, its future cash will be lower. You think you are buying a bargain, you are buying a company that is melting. That is a value trap.

It is precisely to avoid this that I never look at price before judging quality. A low P/FCF is never a bargain on its own. It only is if the quality behind it holds over time.

The box I am looking for

If I had to sum up my method in one image, it would be a four-box grid, two axes: quality and price. Low quality and high price: avoid. High quality and high price: the fine company too expensive, I put it on a watchlist. Low quality and low price: the value trap. And the box I truly hunt for: high quality and low price, at the same time.

It is rare, and it is uncomfortable to buy, because at that moment nobody wants it. But that is where the best investments are made. Being able to answer those two questions, separately, in seconds for any stock: that is all I wanted. That is why I built my site, with a quality score and a reference price for every stock. You can start with the ranking of undervalued stocks or read my full methodology.

FAQ

Quality versus valuation, what is the difference?

Quality measures whether the company is a good business, regardless of its share price: profitability, cash, margins, debt. Valuation measures whether the price paid is reasonable given what the company generates. The two are independent.

What is a value trap?

A stock that looks cheap but whose company is in decline. The price is low because future cash will be weaker. You think you are buying a bargain, you are buying a problem. A low price is only attractive if the quality holds.

Why judge quality before price?

Because a low price only makes sense on a solid company. Starting with quality avoids being trapped by stocks that look cheap but are failing. Price only serves to decide when to buy a company already judged good.

How do I apply this method concretely?

For each stock, answer two separate questions: is it a good business (quality), and is it a good price (valuation). Only buy when both answers are yes. This is not investment advice, do your own research.

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About the author

Written by Lubin Danilo, founder of Lubin Investment. A self-taught individual investor, I have analyzed stocks through their fundamentals for several years and invest my own money with this method. I codified it into a tool that judges a company's quality and its price separately, using criteria drawn from the financial literature (Warren Buffett, Michael Mauboussin, Aswath Damodaran).