🔎How to "read" a company in 10 minutes: fundamentals for absolute beginners

The first time you look at a company's financial statements, it can feel like reading a foreign language. The good news: to get a solid basic orientation, you only need a handful of numbers. This week we'll show you how to "read" a company in about ten minutes — no formula-packed spreadsheets, just common sense and a few key concepts.

Think of a company as a living organism. You want to know three basic things: How big is it and is it growing? Does it earn real cash, or just "paper" profit? Is it not so indebted that one bad year could sink it? Five indicators answer these questions.

1. Revenue — how much the company sells

Revenue is the total amount a company earns from selling its products or services, before subtracting any costs. It's similar to your gross salary before taxes and deductions.

• Why it matters: Growing revenue shows increasing demand for the company's product.
• Watch out for: Revenue that stagnates or declines year after year is a warning sign — even if the company looks "cheap" by other metrics.

Example: If a company like Coca-Cola (KO) reported revenue of $46 billion last year and $44 billion this year, that's roughly a 4% decline. That alone isn't necessarily a disaster, but it's a question worth asking — why?

2. Profit and margin — how much of revenue actually stays with the company

Net income is what remains after all costs, interest, and taxes are paid. Margin expresses profit as a percentage of revenue — essentially "how much of each dollar of revenue the company actually keeps."

• Gross margin = what's left after direct production costs.
• Operating margin = what's left after regular operating costs too (wages, marketing, rent).
• Net margin = what's left at the very end, after interest and taxes.

Analogy: You run a lemonade stand. Revenue is everything you collect from customers. Margin is what stays in your pocket after paying for lemons, sugar, cups, and rent for your spot. A company with a high margin (e.g., a software company with a 30% margin) can afford more mistakes than a company with a 3% margin (typical for some retailers or shippers), where even a small hiccup can push it into a loss.

3. Free cash flow (FCF) — real cash, not just an accounting figure

Accounting profit can be legally "improved" through various non-cash methods (depreciation, accruals, etc.). That's why experienced investors also watch free cash flow — the cash that actually remains after operating costs and investments in equipment, buildings, and technology.

• Why it matters: A company with positive and growing FCF can afford to pay dividends, buy back shares, pay down debt, or invest in growth — without needing to borrow.
• Warning sign: A company that consistently reports accounting profit but negative free cash flow deserves a closer look — sometimes it means the "profit" is largely on paper only.

4. Debt — how much the company owes and can it repay it?

Companies commonly borrow to fund investments — that's not inherently bad. The question is whether the debt is proportional to the company's size and earning power.

A simple check: compare total debt to annual operating profit (EBITDA) or to free cash flow. If it would take a company more than 4–5 years to repay all its debt from current cash flow, that's a signal for caution (in capital-intensive industries like utilities — such as ČEZ — higher values are more common than in tech companies).

• Why it matters: A highly indebted company is more vulnerable to rising interest rates or declining revenue, since it must pay interest regardless of how business is going.

5. P/E ratio — how much you pay per unit of profit

The P/E (price-to-earnings) ratio shows how many times higher the share price is compared to annual net profit per share. If a company earns $5 per share and the stock trades at $100, the P/E is 20 — the market is willing to pay 20 times annual earnings.

• High P/E often means the market expects rapid future earnings growth (typical for growth companies like NVDA during periods of strong AI chip demand).
• Low P/E can signal undervaluation, but it can equally signal that the market expects trouble or slowdown (common for mature, cyclical companies).

P/E is most useful in comparison — against the same company's historical P/E or against competitors in the same industry. Comparing the P/E of a bank and a tech company doesn't make much sense, since they have different profitability and growth profiles.

What to look at first — a recommended order

1. Is revenue growing? Without growing revenue, it's hard to build a successful business long term.
2. Is the company profitable, and how strong is its margin? Profit shows whether the company can convert revenue into value for shareholders.
3. Does it generate real cash (FCF)? This confirms the profit isn't just an accounting illusion.
4. Is the company not excessively indebted? This protects you from companies that a single bad year could bring down.
5. Is the current valuation (P/E) reasonable relative to history and industry? The last step — even a great company can be "expensively" priced.

A simplified example

Metric	Last year	This year	Comment
Revenue	10 billion	11.5 billion	15% growth — positive
Net margin	12%	14%	Margin improving
Free cash flow	0.8 billion	1.1 billion	Real cash grows alongside profit
Total debt / EBITDA	2.1x	1.8x	Leverage decreasing
P/E	22	25	Market is willing to pay more — likely expecting further growth

In this simplified example, the company is growing, improving its margin, generating real cash, and reducing leverage — fundamentally it looks healthy. The higher P/E simply means the market has already "rewarded" these traits with a higher price, which may or may not mean the stock is currently more expensively valued.

How to do this in QMA

On the /stocks/[symbol] page (e.g., /stocks/AAPL, /stocks/KO, or /stocks/CEZ) you'll find an overview of key fundamentals — revenue, margins, profit, debt, and free cash flow for recent periods, along with their historical trend, making it easy to see whether metrics are growing or stagnating.

The stock detail page also includes a 5-pillar score, which summarizes the company's health across several categories (typically including growth, profitability, debt/financial stability, and valuation) — allowing you to quickly compare multiple companies at a glance without manually going through entire financial statements.

For broader market comparisons, the /screener lets you filter companies by similar criteria (e.g., margin, P/E, leverage) to find companies with a comparable fundamental profile. If you're interested in how a given topic translates into a specific investment idea or strategy rules, you can also check /strategy, which describes model approaches to evaluating stocks.

Your own observations and questions about individual companies can be recorded in /journal — useful if you want to gradually build your own system for evaluating fundamentals over time.

Disclaimer

Past performance is not a guarantee of future results. All investment decisions are your own responsibility.