Lesson 16: How to read a 10-K before you research a stock
A beginner-friendly route through a company's annual SEC filing: where to find it, which sections to read first, and what the numbers can tell you.
The big idea
A Form 10-K is a public company's annual report filed with the U.S. Securities and Exchange Commission (SEC). The filing describes what the company does, the risks it faces, and its financial results for the year. The financial statements in a 10-K are audited. 1
Think of the 10-K as a restaurant's annual back-of-house binder. The binder has a menu of what the restaurant sells, a page about what could go wrong, the manager's explanation of the past year, and the books that show what came in and went out. You do not need to read every page in order to find the sections that answer your first questions.
Education only: This lesson explains how to use a public filing for basic research. It is not individualized investment advice. A company name or ticker used as an example is a label, never a recommendation.
Where the binder lives
The SEC's free database is called EDGAR. EDGAR gives the public access to filings from public companies, including Form 10-K, Form 10-Q, and Form 8-K. A 10-Q is a more abbreviated quarterly report. An 8-K reports certain important events between scheduled quarterly or annual reports. 2
Search for a company by its name or ticker, then look for the filing marked
10-K. A company's glossy report to shareholders can overlap with the 10-K, but the SEC filing usually carries more detail. The filing and the shareholder report sometimes appear as the same document. 1The company prepares and files the 10-K. The SEC sets disclosure rules and reviews filings for compliance. The SEC does not certify that every statement in a filing is accurate. A company's chief executive officer and chief financial officer certify the 10-K under the applicable requirements. 1
Start with the business and the risks
The Business section answers the first practical question: how does this company make money? It describes the company's main products or services, markets, subsidiaries, competition, regulations, and other parts of its operation. 1
Write down the business in one plain sentence. For example: "This company sells software subscriptions to other businesses." The sentence is a reading aid. It gives every later number a subject.
Then open Risk Factors. This section describes significant risks that affect the company or its securities, often starting with the risks the company considers most important. Risks can come from the economy, the industry, a region, competition, regulation, lawsuits, suppliers, or the company's own operations. 1
The risk section works best beside the business sentence. A company that depends on one supplier raises a different question from a company that depends on changing consumer tastes. The filing gives you the risk categories to investigate; the filing does not rank an investment for your own situation.
Read management's explanation
The Management's Discussion and Analysis of Financial Condition and Results of Operations, usually called MD&A, is management's explanation of the year's results. The section discusses operations, liquidity, capital resources, important trends, uncertainties, and material changes from an earlier period. 1
In the restaurant binder, MD&A is the manager's note beside the books: "Sales changed because we opened two locations," or "Costs rose because ingredients became more expensive." The note gives context for the numbers and shows which causes management wants readers to consider.
Read the MD&A with three questions:
- What changed from the prior year?
- What reason does management give for the change?
- Which trend or uncertainty does management say could affect the next period?
The third question deserves care. Management's explanation is useful evidence about the company's view. The explanation is one part of research, alongside the financial statements, risk factors, and later filings.
Three statements, three questions
A 10-K's financial statements turn the business story into organized records. FINRA describes three statements that give a beginner a practical starting point. 2
| Statement | Plain-English question | What it records | Reading caution |
|---|---|---|---|
| Balance sheet | What does the company own, and what does it owe? | Assets, liabilities, and shareholders' equity at a point in time. | Compare the company's resources and obligations over several periods and with relevant industry context. |
| Income statement | Did the business produce sales and profit during the period? | Revenue, expenses, gains, and losses for the period. | Revenue growth and profit are separate questions; rising sales can come with rising costs. |
| Cash flow statement | How did actual cash move? | Cash from operating, investing, and financing activities, plus the period's net increase or decrease in cash. | A reported profit and the cash available to pay bills can differ. |
Shareholders' equity is the amount left after liabilities are subtracted from assets. It gives a rough picture of the company's net value on the balance sheet. Liquidity means the company's ability to meet its short-term obligations with available resources. FINRA notes that a profitable company can still face liquidity problems when it does not generate enough cash to pay its bills. 2
Use the statements as a connected set. A sales number belongs to the income statement. A cash balance belongs to the balance sheet. The cash flow statement helps explain how the cash balance changed. A single line rarely answers the whole business question.
Read the footnotes and auditor's report
The small print often carries the explanation behind a large number. Financial-statement footnotes can describe accounting practices, income taxes, pension plans, stock options, and other details. 2
Look for the accounting policies that affect the numbers you just read. A footnote may explain how the company records revenue, values an asset, reports debt, or accounts for a legal matter. The footnote gives the definition and conditions behind the headline figure.
The financial statements also include an independent auditor's report. A standard report gives an opinion on whether the statements fairly present the company's financial position under the relevant accounting rules. A qualified opinion, a disclaimer of opinion, or a disclosed material weakness in internal controls calls for closer reading of the auditor's explanation. 1
Internal controls are the processes a company uses to prepare reliable financial reports. You do not need to become an auditor for a first pass. You do need to know where the filing tells you that the reported numbers require additional context.
A 15-minute first pass
A short first read can follow the binder's tabs:
- Business: Write one sentence describing how the company makes money.
- Risk Factors: Mark the risks that could affect sales, costs, access to cash, competition, or operations.
- MD&A: Note one major change from the prior year and management's stated reason.
- Financial statements: Check the direction of revenue, expenses, profit, cash, debt, and shareholders' equity across the periods shown.
- Footnotes and auditor's report: Read the notes attached to the numbers that raised questions. Check the auditor's opinion and any disclosed control weakness.
- Earlier filing: Compare the newest 10-K with an earlier 10-K or the latest 10-Q so that one year's snapshot becomes a short sequence.
FINRA recommends starting with questions about how a company makes money, demand for its products or services, past performance, management, growth, profitability, debt, industry conditions, and economic or political risks. The 10-K and 10-Q contain many of the business and financial details needed for those questions. 3
Keep two columns in your notes: What the filing says and What I still need to decide. The first column can hold a revenue trend, a debt balance, a stated risk, or management's explanation. The second column holds personal questions about goals, time horizon, diversification, and comfort with loss. A filing can inform those questions; the filing cannot answer them for you.
Quick recap
- Form 10-K is a company's annual SEC filing with business information, risks, management discussion, and audited financial statements.
- EDGAR is the SEC's free public database for company filings.
- The Business and Risk Factors sections explain the business model and the risks around it.
- MD&A gives management's explanation of results, trends, liquidity, and uncertainties.
- The balance sheet, income statement, and cash flow statement answer different questions and work best together.
- Footnotes and the auditor's report supply conditions behind the headline numbers.
- A first pass can turn a long filing into a short list of facts to verify and questions to research.
Next lesson: expense ratios—the ongoing cost inside a fund, how the percentage becomes dollars, and which other fund costs can sit beside it.
References
- 1How to Read a 10-K/10-Q | Investor.gov
investor.gov
- 2
- 3Evaluating Stocks | FINRA
finra.org
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