What Is a 10-K?
The 10-K is the annual report that every publicly traded U.S. company must file with the Securities and Exchange Commission (SEC). Unlike the glossy annual report companies send to shareholders, the 10-K is a legally mandated document with strict formatting requirements and penalties for misrepresentation.
It contains audited financial statements, a detailed description of the business, risk factors, management's discussion and analysis of financial results, and extensive notes explaining accounting policies. This is the single most important source of data for fundamental analysis.
Every number on FairValueLabs — Z-Scores, DCF fair values, moat ratings, dividend safety grades — originates from 10-K data.
Where to Find It (SEC EDGAR)
All 10-K filings are available for free on SEC EDGAR at sec.gov/edgar. Search by company name or ticker symbol. Filings are available in HTML (readable in your browser) and XBRL (machine-readable format — this is what FairValueLabs uses for automated data extraction).
Most investor relations pages on company websites also link to their SEC filings, but EDGAR is the authoritative source.
Key Sections to Read
A 10-K is divided into four parts. Here are the sections that matter most:
Item 1: Business Description — What the company does, its products, customers, competition, and regulatory environment. Read this first to understand the business model.
Item 1A: Risk Factors — The company's own assessment of what could go wrong. These are legally required disclosures, so companies are incentivized to be thorough. New risk factors that weren't in last year's filing deserve special attention.
Item 7: Management's Discussion and Analysis (MD&A) — Management's explanation of financial results, trends, and outlook. This is where you learn why revenue grew or declined, why margins expanded or compressed, and what management expects going forward.
Item 8: Financial Statements — The audited numbers. Income statement, balance sheet, cash flow statement, and (critically) the notes to the financial statements.
The Three Financial Statements
Income Statement (Statement of Operations) — Shows revenue, expenses, and profit over the fiscal year. Key lines: revenue, gross profit, operating income (EBIT), net income, and earnings per share.
Balance Sheet (Statement of Financial Position) — A snapshot of everything the company owns (assets) and owes (liabilities) at fiscal year-end. Key lines: cash, total debt, working capital (current assets minus current liabilities), shareholders' equity.
Cash Flow Statement — Shows how cash moved during the year across three categories: operating activities (cash from the business), investing activities (capex, acquisitions), and financing activities (debt, equity, dividends). The most important number: free cash flow (operating cash flow minus capex).
The cash flow statement is the hardest to manipulate and the most reliable indicator of financial health. A company can report positive earnings through accounting choices while burning cash — the cash flow statement reveals the truth.
Red Flags to Watch For
When reading a 10-K, watch for these warning signs:
- Going concern warning in the auditor's report — the auditor has doubts about the company's ability to survive another year
- Revenue growing while cash flow declines — suggests aggressive revenue recognition or deteriorating collection of receivables
- Frequent changes in accounting policies — may indicate management is manipulating reported results
- Large "other" or "non-recurring" charges every year — truly non-recurring charges don't recur. If they show up annually, they're operating expenses management wants to hide
- Increasing accounts receivable faster than revenue — customers may not be paying, or the company is booking revenue prematurely
- Off-balance-sheet obligations — disclosed in footnotes, these can be material (operating leases, guarantees, unconsolidated entities)
10-K vs. 10-Q
The 10-Q is the quarterly equivalent of the 10-K, filed after each of the first three quarters (the fourth quarter is covered by the annual 10-K). Key differences:
- 10-Q financial statements are unaudited (reviewed but not fully audited)
- 10-Q is shorter and less detailed
- 10-Q does not include Item 1 (Business Description) or full risk factor updates
For fundamental analysis, the 10-K is the primary source. 10-Q filings are useful for tracking quarterly trends between annual reports.
On FairValueLabs, our automated pipeline processes both 10-K and 10-Q filings to keep data as current as possible.