You Don't Need Jargon to Read a 10-K: Three First-Principles Questions

A 10-K isn't a codebook for accountants. Hold on to three questions — where the money comes from, where it goes, and where what's left ends up — and you understand the company.

How jargon keeps people out

Open a US annual report (a 10-K) and hundreds of pages of terminology hit you at once. Most people flip two pages, close it, and go read someone else's "take." The trouble is that the person with the take may not have understood it either — or may have their own agenda.

"First principles" simply means: don't borrow someone else's conclusion; go back to the most basic facts you can verify yourself and think it through again. For a company, there are only three basic facts — where the money comes from, where it goes, and where what's left ends up. Every piece of jargon is just another name for one of those three.

Question one: where does the money come from?

Who pays, why they pay, and whether they'll keep paying.

In the 10-K, the Business section and the revenue breakdown inside Management's Discussion answer this. You're not looking for the single total-revenue figure. You're looking for: how is revenue split (by product, region, customer type)? Which piece is growing and which is shrinking? Do a handful of customers account for most of it?

A test that needs no vocabulary: if this company's largest customer group bought thirty percent less next year, how much revenue would disappear? The customer-concentration disclosure tells you. If the answer makes you uncomfortable, that's the important information.

Question two: where does the money go?

Of the money earned, how much is the cost of simply doing this business, and how much is spent to grow faster?

The cost breakdown and expense notes answer this. Separate two kinds of spending: costs that rise with revenue (sell more, spend more) and costs that barely move (selling one more unit costs almost nothing extra). The larger the second kind, the more the company "earns better as it gets bigger." The larger the first kind, the less scale helps.

Then ask: the money the company says it's "investing in the future" — what exactly did it buy? Can you point to it in the statements? If you can't, treat that "investment" as an ordinary expense until proven otherwise.

Question three: where does what's left end up?

Profit is calculated. Cash is real. The two can be far apart.

The cash flow statement answers this. Three lines are enough: is cash from operations positive or negative? Did the company spend its cash on equipment and acquisitions, or on repaying debt, buying back shares, and paying dividends? Is there more cash on the balance sheet than a year ago, or less?

A common signal: reported profit rises every year while operating cash lags behind — the money is stuck in receivables or inventory. That's not necessarily bad, but it always deserves a "why."

Putting the three together

Join the three answers into one sentence: what this company gets paid for, how much of what it collects it actually keeps, and what it does with what it keeps. If you can say that sentence in your own words, you understand the company better than most people who only read headlines — and every word of it can be traced to the annual report.

That is the order our own stock research follows: answer these three questions first, cite the filing behind each answer, and only then talk about valuation. We avoid jargon not to be popular, but because the places you can't explain plainly are usually the places you haven't thought through.