Stock Research Lesson

Understanding the Business Before the Stock

Learn what the company actually does, how it makes money, who its customers are, and which parts of the business drive its results

Before analyzing the stock, understand the business that the stock represents.

Financial ratios become more meaningful when the researcher understands where revenue, profits, cash flow, risks, and growth actually originate.

1. Start With the Business, Not the Ticker

Owning shares represents an economic interest in an operating company.

The ticker identifies the security; the business behind it determines what that ownership actually represents.

2. Describe the Company in One Sentence

Write a simple description that answers: What does this company actually do?

Avoid merely copying promotional language. The sentence should reflect your own understanding, not the company's marketing.

3. Identify the Products and Services

Determine what customers actually purchase from the company.

The answer should be specific enough that someone unfamiliar with the company could understand what changes hands.

4. Identify How the Company Makes Money

Common revenue models include:

  • Product sales
  • Subscriptions
  • Services
  • Transaction fees
  • Advertising
  • Licensing
  • Financing
  • Rentals
  • Combinations of the above

5. Revenue Is Not the Same as Profit

A business can generate substantial revenue without producing strong profits or cash flow.

Revenue measures sales. Profit measures what remains after costs. Cash flow measures the cash the business actually generates. These are different questions.

6. Identify the Business Segments

Many companies operate several distinct businesses under one corporate structure.

Consolidated results can hide very different operating businesses with different growth rates, margins, and risks.

7. Measure Segment Revenue

A basic calculation:

Segment Revenue % = Segment Revenue ÷ Total Revenue × 100

Example: Total revenue = $10 billion; Segment A revenue = $6 billion.

Segment A = $6 billion ÷ $10 billion × 100 = 60% of total revenue.

8. Measure Segment Profit Contribution

The largest revenue segment is not necessarily the largest profit contributor.

Where appropriately disclosed, use segment operating income to compare how much profit each segment contributes.

9. Build a Segment Table

A structured way to record segment information:

Companies report segments differently, and operating profit may not always be disclosed by segment. Record what the company actually discloses rather than forcing a uniform structure.

SegmentRevenue% of RevenueOperating ProfitRecent Direction
Segment ARecordCalculateRecord↑ / ↓ / Stable
Segment BRecordCalculateRecord↑ / ↓ / Stable
Segment CRecordCalculateRecord↑ / ↓ / Stable

10. Identify the Customers

Determine who actually pays the company.

Examples: consumers, businesses, governments, hospitals, insurers, distributors, financial institutions.

11. Customer Concentration

Dependence on a small number of customers can matter because the loss or reduction of one relationship could materially affect results.

Customer Concentration % = Revenue From Customer ÷ Total Revenue × 100

There is no universal percentage at which concentration becomes unacceptable. The significance depends on the business, the customers, and the alternatives available.

12. Direct Customers Versus End Users

The entity paying the company may differ from the person ultimately using the product.

For example, a company may sell to distributors while consumers use the product, or sell to businesses while employees use the service.

13. Recurring Versus Transactional Revenue

Recurring revenue comes from subscriptions or ongoing contracts. Transactional revenue depends on one-time purchases or transaction volume.

Do not automatically characterize recurring revenue as superior. Each model has different economic characteristics, costs, and risks.

14. Contracted Revenue

Some companies disclose long-term contracts, backlog, remaining performance obligations, or similar measures.

These measures are not identical, and definitions vary by company. Interpret them according to the company's own definitions.

15. Geographic Revenue

Determine where revenue is generated and record it:

GeographyRevenue% of RevenueRecent Direction
DomesticRecordCalculate↑ / ↓ / Stable
International Region ARecordCalculate↑ / ↓ / Stable
International Region BRecordCalculate↑ / ↓ / Stable

16. Why Geography Matters

Geographic exposure can involve currency, economic conditions, regulation, taxation, political conditions, and differing growth rates.

These factors create exposure; they do not predict outcomes.

17. Currency Effects

Reported results can change because of foreign-exchange movements even when local-currency business activity differs.

A company can report revenue growth while local-currency sales declined, or the reverse.

18. Understand the Cost Structure

Major cost categories can include:

  • Cost of goods or services
  • Labor
  • Marketing
  • Research and development
  • Distribution
  • Technology
  • Facilities
  • Interest

The income statement itself is covered in Fundamental Analysis and will not be retaught here.

19. Fixed and Variable Costs

Fixed costs remain relatively constant as sales change; variable costs move with sales volume.

Because of this difference, the same change in sales can affect businesses very differently depending on their cost structure.

20. Operating Leverage

Companies with substantial fixed costs may experience profits changing faster than revenue—in either direction.

This relationship is conceptual, not mechanically predictable; many other factors influence reported profit.

21. Identify the Major Suppliers

Determine what the company must obtain from others in order to operate.

Supplier dependence and supply-chain concentration can create business risk if an important input becomes unavailable, delayed, or more expensive.

22. Supplier Concentration

Ask whether the company depends on:

  • One supplier
  • One manufacturer
  • One geographic region
  • One commodity
  • Specialized components

23. Understand Distribution

Determine how products and services reach customers.

Examples: direct sales, retailers, distributors, app stores, online platforms, partners, wholesalers.

24. Identify Dependence on Other Platforms

Some businesses depend on third-party ecosystems, marketplaces, operating systems, payment networks, cloud providers, or distribution platforms.

Changes in those platforms' terms, pricing, or access can affect the business.

25. Identify the Company's Important Assets

Assets can be tangible or intangible:

  • Plants and equipment
  • Inventory
  • Real estate
  • Patents
  • Software
  • Brands
  • Customer relationships

Accounting book value does not necessarily capture the economic value of all assets—particularly intangible assets developed internally.

26. Understand Intellectual Property

Where relevant, consider patents, trademarks, copyrights, trade secrets, licenses, and proprietary technology.

Do not assume intellectual property automatically creates durable competitive protection. Patents expire, can be challenged, and may not cover what actually drives the business.

27. Identify the Company's Growth Drivers

Growth can come from:

  • More customers
  • Higher prices
  • Greater volume
  • New products
  • New geographic markets
  • Acquisitions
  • Cross-selling

Growth drivers should be supported by evidence rather than assumed.

28. Decompose Revenue Growth

Conceptually:

Revenue Growth ≈ Volume/Customer Growth + Price/Mix Changes + Acquisitions + Currency/Other Effects

Exact decomposition depends on company disclosures, and these effects can overlap.

29. Organic Growth Versus Acquired Growth

Acquisition-driven growth should be distinguished from growth generated by existing operations when disclosures allow.

An acquired business adds revenue immediately, but says nothing by itself about whether the existing business is growing.

30. Identify Business Cyclicality

Demand can be influenced by economic cycles, interest rates, commodity cycles, capital spending, housing, consumer spending, or other industry-specific conditions.

Do not label a business cyclical without evidence from its historical results.

31. Identify Seasonality

Quarter-to-quarter comparisons can be misleading for seasonal businesses.

Where useful, compare appropriate periods such as the same quarter in prior years.

32. Understand Regulation

Depending on the industry, regulation may affect pricing, costs, market access, product approval, reporting, or operations.

Identify which regulations matter to this specific business rather than treating regulation as uniformly positive or negative.

33. Identify What Could Change the Business

Sources of potential change include:

  • Technology
  • Competition
  • Regulation
  • Customer behavior
  • New products
  • Supply changes
  • Acquisitions
  • Economic conditions

Separate identified risks from predictions. Identifying what could change is not the same as predicting that it will.

34. Build the Business Profile

Organize the findings into a structured profile:

This is a research organizer, not a scoring system.

Research QuestionFindingSourceFollow-Up Needed?
What does the company do?RecordRecordYes/No
What does it sell?RecordRecordYes/No
How does it make money?RecordRecordYes/No
Major segments?RecordRecordYes/No
Major customers?RecordRecordYes/No
Geographic exposure?RecordRecordYes/No
Major suppliers?RecordRecordYes/No
Distribution channels?RecordRecordYes/No
Major assets/IP?RecordRecordYes/No
Growth drivers?RecordRecordYes/No
Cyclicality/seasonality?RecordRecordYes/No
Major regulatory exposure?RecordRecordYes/No

35. Explain the Business Without Looking at the Stock Price

After completing the business profile, try to explain the company without mentioning:

  • Stock price
  • P/E
  • 52-week high
  • 52-week low

If the company cannot yet be explained clearly, additional business research may be necessary.

36. From Business Understanding to Evidence

Once you understand what the company does and how it earns money, the next question becomes: Where can the information needed to verify this understanding be found?

That is the subject of Lesson 3: Where to Find Reliable Company Information.

Understanding the business provides the framework. Reliable evidence determines whether that understanding is supported by the company's actual disclosures and other credible information.