Research Guide
How to read a 10-K without getting lost
An annual report can run past a hundred pages. You do not need to read it front to back to get what matters.
The 10-K is the annual report a US public company files with the Securities and Exchange Commission. It is the most complete official description of the business, its risks and its finances that the company publishes in a year. It is also long, dense and written with lawyers in the room. The trick is to read it in the right order, with specific questions.
What a 10-K contains
Every 10-K follows the same broad structure set by SEC rules, which is what makes it so useful: once you learn where things are, you can find them in any company's report. The sections that matter most for most readers are:
| Section | What you will find |
|---|---|
| Item 1, Business | What the company sells, to whom, its segments, competition and regulation |
| Item 1A, Risk Factors | The risks management says could hurt results |
| Item 7, Management's Discussion and Analysis (MD&A) | Management's explanation of results, trends, liquidity and capital resources |
| Item 8, Financial Statements and notes | Income statement, balance sheet, cash flow statement and the detail behind them |
Read in this order
- Item 1, Business. Make sure you can explain in two sentences how the company makes money. If you cannot, nothing else will make sense.
- Item 7, MD&A. This is where management explains why revenue, costs and margins moved. Note every reason they give; you will test them against the numbers.
- Item 8, the financial statements. Check the claims in MD&A against the actual figures.
- The notes to the financial statements. Debt maturities, segment results, leases, stock compensation and one-time items usually live here.
- Item 1A, Risk Factors. Read these last, and compare them with last year's list. New or rewritten risks are often more informative than the long standard ones.
What to look for in the numbers
Pull the key lines into your own table rather than reading them on screen. For the income statement: revenue, gross profit, operating income and net income. For the cash flow statement: cash from operations and capital expenditures; operating cash flow minus capital spending is a simple proxy for free cash flow. For the balance sheet: cash, total debt and shareholders' equity.
Then calculate the relationships yourself. Gross margin is gross profit divided by revenue. Operating margin is operating income divided by revenue. Compare each with the prior year. If revenue grew but gross margin fell, the company sold more but kept less of each dollar, and MD&A should explain why. Our guide to reading an earnings report works through an example of exactly that tension.
The notes are where surprises hide
Headline figures are summaries. The notes show what is underneath. A few that are always worth reading:
- Debt: when it matures, at what interest rate, and whether it is fixed or floating.
- Segments: which parts of the business are growing and which are shrinking. A healthy total can hide a weak core.
- Revenue recognition: when the company counts a sale. Changes here can move reported revenue without any change in customers.
- Unusual or one-time items: restructuring, impairments, legal settlements. Decide for yourself whether they are truly one-time.
Questions to ask while you read
A 10-K answers the questions you bring to it. Keep a short list beside you as you read:
- Which segment or product line produced most of the growth, and is it the same one that produced most of the profit?
- Did operating cash flow keep pace with net income? If profit rose but cash did not, find out why, often in receivables or inventory.
- How much debt comes due in the next two or three years, and does the company have the cash or credit lines to meet it?
- Did the number of shares outstanding rise? Stock compensation and new share issues spread the same profit across more shares.
- What does management say it will do next, and how does that compare with what it said a year ago?
Write the answer to each next to the page number where you found it. That habit turns a long read into a reusable evidence file.
Turn the filing into research, not a summary
Reading a 10-K is only useful if it changes your understanding. As you go, keep three lists: facts you verified with the source page, explanations management gave that you still need to test, and questions the filing did not answer. That third list tells you where to look next: the latest 10-Q, the earnings call, competitors' filings or industry data.
If you have not yet found the filing itself, our guide to using SEC EDGAR shows where every 10-K, 10-Q and 8-K lives. For the full method of turning documents into an evidence file and a thesis, see our ebook How to Research Like a Wall Street Analyst.
Questions readers ask
What is the difference between a 10-K and an annual report to shareholders?
The 10-K is the formal filing required by the SEC and follows a set structure. Many companies also publish a glossier annual report for shareholders, which often includes the 10-K but adds marketing material.
What is the most important section of a 10-K?
For most readers it is Management's Discussion and Analysis (Item 7), read alongside the financial statements (Item 8), because together they show what happened and management's explanation of why.
How often is a 10-K filed?
Once a year, after the end of the company's fiscal year. Quarterly results in between are reported on Form 10-Q, and significant events on Form 8-K.
Educational material from The Company Chronicle, not individualized investment advice. Investing involves risk, including loss of principal. Examples are illustrative.