CluenexWhat is a 10-K?
A 10-K is the annual report that companies with securities registered under US securities law file with the Securities and Exchange Commission (SEC). It covers the business, its risks, management's explanation of results and audited financial statements.
It is a legal filing, not a brochure. Under the Sarbanes-Oxley Act, the CEO and CFO must certify that the report is accurate and does not leave out material facts, and they can face legal liability if it does not. That makes it a very different document from a press release or investor presentation, which exist to persuade.
Every 10-K is free on the SEC's EDGAR database. You can search by company name or ticker with no account.
What sections are in a 10-K?
A 10-K can run to hundreds of pages, but four parts carry most of what an individual investor needs.
| Item | Section | What it tells you |
|---|---|---|
| 1 | Business | What the company sells, to whom, and how it makes money |
| 1A | Risk Factors | What management says could go wrong |
| 7 | Management's Discussion and Analysis (MD&A) | Why results changed, in management's words |
| 8 | Financial Statements | Audited income statement, balance sheet, cash flow statement and notes |
There are other items, including legal proceedings (Item 3), executive pay details that often point to the proxy statement, and controls and procedures (Item 9A). They matter, but start with the four above.
What do the three financial statements show?
The income statement shows profit over the year, the balance sheet shows what the company owns and owes on one date, and the cash flow statement shows actual cash moving in and out.
| Statement | What it shows | Analogy |
|---|---|---|
| Income statement | Revenue minus costs, ending in net income | A year of earnings and spending |
| Balance sheet | Assets, liabilities and equity on a single day | A net worth snapshot |
| Cash flow statement | Cash from operations, investing and financing | A bank statement |
Profit and cash are not the same thing. A company can report net income while cash shrinks, for example if customers have been billed but have not yet paid. For more on the balance sheet, see how to read a balance sheet, and for cash, see free cash flow explained.
When is a 10-K due?
A 10-K is due 60, 75 or 90 days after fiscal year-end, depending on the company's public float (the market value of shares held by people other than insiders and large owners).
| Filer category | Public float | Deadline |
|---|---|---|
| Large accelerated filer | $700 million or more | 60 days |
| Accelerated filer | $75 million to under $700 million | 75 days |
| Non-accelerated filer | Under $75 million | 90 days |
Some smaller companies with low revenue are also treated as non-accelerated even with a larger float, under SEC rules. If a deadline falls on a weekend or holiday, it moves to the next business day.
A company that cannot file on time submits Form 12b-25, known as an NT 10-K, which gives it a short extension. One late filing can be harmless. Repeated ones are worth reading about, because the reason given is often an accounting or internal controls issue.
How trustworthy is a 10-K?
A 10-K is one of the most reliable sources about a company because it is certified, audited and legally accountable. It is still not a guarantee that the story it tells is complete or that the future will resemble the past.
An audit by an independent accounting firm gives reasonable assurance that the statements are presented fairly under accounting rules (US GAAP). It does not remove judgment. For example, a company spreads the cost of equipment over its estimated useful life. Choosing 5 years instead of 8 changes reported profit each year, and both can be legal and disclosed.
The filing also looks backward. It reports a year that has ended. Management's outlook language, where present, is a view, not a promise.
How do you read a 10-K step by step?
Read in this order, and spend most of your time on trends rather than one year.
- Item 1, Business. Can you explain in one or two sentences how the company makes money? If not, pause here.
- Item 1A, Risk Factors. Skip generic industry language. Look for company-specific items such as one customer making up a large share of revenue, a named lawsuit or an investigation.
- Item 7, MD&A. Find the explanations for changes in revenue, margins and cash flow.
- Item 8, statements. Pull the same lines (revenue, operating income, debt, operating cash flow) for three years.
- Notes to the financial statements. Search for revenue recognition, debt, leases and legal contingencies.
- Filing timing. Note whether an NT 10-K was ever filed.
For help comparing margins, see gross, operating and net margin.
Worked example: why three years beat one
Take a made-up company, Example Co. Its latest year looks good alone, and the earlier years change the picture.
| Year | Net income | Operating cash flow | Total debt |
|---|---|---|---|
| Year 1 | $100 million | $105 million | $300 million |
| Year 2 | $115 million | $100 million | $380 million |
| Year 3 | $130 million | $90 million | $470 million |
Net income rose 30% from $100 million to $130 million. Over the same period, operating cash flow fell from $105 million to $90 million, and debt rose by $170 million. In Year 3, cash from operations is only $90 million / $130 million = 69% of reported profit.
This does not prove anything is wrong. It gives you a specific question for the MD&A: is the gap from customers paying slower, from inventory building up, or from something else, and why is borrowing rising?
Where does the 10-K fall short?
A 10-K is not built to be a forecast, a valuation or a bargain alert. Several limits matter.
- It is backward-looking. It tells you about a year that is already over, so use the 10-Q (quarterly report) for newer data.
- Risk factors are often boilerplate. Many are copied across companies, so a long list does not mean a risky company, and a short one does not mean a safe one.
- Audited is not the same as correct. Audits give reasonable assurance, not certainty, and accounting estimates remain judgments.
- Non-GAAP numbers add risk. Adjusted figures in MD&A or press releases can exclude real costs. Compare them with the GAAP statements.
- It does not tell you the price. A great business can be a poor purchase if the price is high. A filing says nothing about that.
What this means for you
If you own individual stocks, open the latest 10-K for each company at least once, and skim it again once a year when the new one is filed.
- Before buying, read Items 1 and 1A and write down what the company does in one sentence.
- Save three years of revenue, operating cash flow and debt in a simple spreadsheet and update it each year.
- Compare operating cash flow with net income. If the gap widens for two years, read the MD&A explanation.
- Use the notes to find debt maturities and lawsuits.
- Treat analyst summaries and news as a second opinion, not a replacement.
Cluenex pulls from SEC filings to refresh its stock pages nightly, and each public stock page at /stocks/