| Section | What to read | Why it changes between filings |
|---|---|---|
| Part I, Item 1: Financial Statements | Unaudited balance sheet, income statement, cash flow statement for the quarter and YTD | Quarterly economic performance; restatements of prior periods (rare but high-signal) |
| Part I, Item 2: MD&A | Management's discussion -- the closest thing to an editorial on the quarter | Forward-looking language softens or strengthens; segment commentary reveals shifts |
| Part I, Item 3: Quantitative Market-Risk Disclosures | Interest-rate, FX, and commodity-exposure tables | Material balance-sheet shifts (new debt, hedging changes) move the numbers |
| Part II, Item 1: Legal Proceedings | New material lawsuits, regulatory investigations, settlement updates | Filings, settlements, dismissals -- all happen between annual reports |
| Part II, Item 1A: Risk Factors | Quarterly amendments to the 10-K's risk-factor list | When a new risk is added mid-year, that's the company telling you something changed materially |
| Going-concern paragraph (audit-related) | Look for any auditor or management language about ability to continue as a going concern | Often added between 10-K and 10-Q when liquidity deteriorates -- the loudest single signal |
The 10-Q is UNAUDITED. The financial statements are reviewed by the auditor but not audited; that's the trade-off for the 40-45-day filing deadline (vs ~75 days for the 10-K). This is why restatements often appear in 10-Q filings rather than 10-Ks — once the auditor goes through the full annual audit, errors from prior quarters surface. A restatement of a prior quarter's revenue or earnings is one of the most-watched red flags in fundamental analysis; the SEC's Comment Letter database is a treasure-trove of why these happen.
The MD&A section is editorial, not arithmetic -- read it with the same skepticism you'd apply to a press release. Public-company MD&As are written by IR teams under SOX requirements but with massive leeway in tone. Look for SOFTENING forward-looking language ('we now expect' is weaker than 'we expect'; 'subject to macroeconomic conditions' is a hedge that wasn't there last quarter). The MD&A is also where management gets to frame segment performance — read what the company DOESN'T highlight as carefully as what it does.
A 10-Q is the 10-K's quarterly diff. Read it as a diff: which Risk Factors changed, which legal proceedings updated, what the MD&A's tone shifted to, whether any prior period was restated. Auditor-related going-concern language is the loudest signal. The MD&A is the most-subjective section -- weight it accordingly.
Sit with the ideas.
A company's Q3 10-Q discloses a new $250M lawsuit, a restatement of Q1 revenue downward by $40M, and a going-concern warning from the auditor. None of these were in the 10-K filed eight months earlier. Which is the most material signal for an equity investor?