Read the filing before you buy the ticker

Start with the cash flow statement. Not the headline, not the chart, not the earnings number. Open the company's most recent annual filing, scroll to the statement of cash flows, and find the line for net cash provided by operating activities. Then find capital expenditures. Subtract. If what's left is negative, the business consumed money last year. Somebody funded that gap, either a lender or a new share buyer, and both of those have a claim that comes before yours.

That single subtraction will disqualify a surprising number of things you were about to buy.

Public companies in the U.S. file a 10-K once a year and a 10-Q each quarter. They're free on the SEC's EDGAR database and on most company investor relations pages. A first-time filing before an IPO is an S-1. Those documents are long, badly typeset, and written by lawyers who want to be accurate more than they want to be read. They're also the only place the company is legally on the hook for what it tells you. Everything else — the press release, the podcast interview, the deck — is marketing.

Ninety minutes, four sections

You don't read a 10-K front to back. You read four parts of it, and you can do that in about an hour and a half.

Item 1, Business. What do they sell, to whom, and how do they get paid. If you can't explain it out loud in two sentences after reading this section, stop. Not because it's a bad company, but because you now know you're buying a story instead of a business.

Item 1A, Risk Factors. Most of this is boilerplate about weather and terrorism and interest rates. Skim for the specific ones. A risk factor naming a single customer, a single supplier, one patent, one regulator or one country is the company telling you where the whole thing breaks.

Item 7, Management's Discussion. This is management explaining its own numbers in plain English. Read the revenue discussion and the liquidity discussion. Liquidity is where they tell you whether they can pay next year's bills.

The financial statements and the notes. The notes are longer than the statements and more useful. Debt maturities live there. So do lease obligations, stock-based compensation, and the accounting choices that flatter the headline.

Three years, not one

One filing is a photograph. Three is a video.

Pull the same 10-K for the last three years and compare the same paragraphs. Did the risk factors change? A new one that appeared this year matters far more than the twenty that have been copied forward since 2019. Did the segment they were most excited about last year quietly get folded into "other"? Did the definition of a key metric shift? Companies redefine metrics when the old definition stopped being kind to them.

Read the shareholder letters over the same period, in order. You're looking for one thing: did they do what they said they'd do. A management team that set a target, missed it, and said plainly that they missed it is worth more than a team that never sets targets at all.

Who gets paid first

Ownership of a share is the last claim in the line. Before you, there's the tax authority, the suppliers, the staff, the lenders, and sometimes a class of preferred stock.

Find total debt and find when it's due. A company with a lot of debt and nothing maturing for six years has time. The same company with a big chunk due in eleven months has a problem, and the size of that problem depends on rates and on whether anyone will roll it over.

Then look at the share count. Compare shares outstanding today with three years ago. If it's climbing steadily and revenue isn't climbing faster, your slice is shrinking. Stock-based compensation is a real cost even though it doesn't leave the bank account — it leaves your ownership instead.

Check the proxy statement for how executives are paid. If the bonus is tied to revenue growth, expect revenue growth and don't be shocked when margins suffer. People do what they're compensated to do. That's not cynicism, it's just reading the instructions.

Doing the same work on a token

Crypto is where this discipline matters most, because the disclosure is voluntary. There's no 10-K. There's a website, a docs site, a repository, and a chain you can read directly. That's less than a filing in some ways and more in others — you can see the actual flows.

Work through the same four questions in the same order.

What does it do, and does anyone pay for it? Many protocols generate real fees. Many generate none. Fee data is usually visible on-chain and on public dashboards. Ask whether the fees exist without incentive emissions propping them up. If the protocol is paying users more in tokens than it collects in fees, that's the negative free cash flow problem wearing different clothes.

Where's the supply coming from? Find total supply, circulating supply, and the unlock schedule. Insider and investor allocations usually vest over months or years, and every unlock is new supply arriving whether demand shows up or not. A token with twelve per cent circulating and three years of vesting ahead of it is not the same asset as one fully distributed. Check the treasury too. A large treasury denominated in the project's own token is worth less than it looks the moment they try to sell it.

Who's in control? Find out who can upgrade the contracts, who holds the admin keys, whether there's a multisig and how many signers it needs. Find out where the governance votes actually land — if a handful of wallets can pass anything, governance is decoration. These details are usually documented, and when they aren't, that's the answer.

What's been audited, and what happened after? Audits reduce risk, they don't remove it. Read whether the findings were fixed. Check whether the code has changed materially since the audit, because an audit of last year's contract tells you very little about this year's.

The page you write before you buy

Before money moves, write half a page by hand. Four lines.

• What this business or protocol does, in two sentences.
• Why it's worth more in three years than it is now.
• The two things that would prove you wrong.
• What you'd do if either happened.

That last line is the one people skip, and it's the one that saves you. Deciding your exit while you're calm is much easier than deciding it while you're down forty per cent and reading a forum.

Size the position so that being wrong is survivable. Assume total loss is possible on anything speculative, because sometimes it is. And if you're weighing this against a mortgage, a tax situation, or a retirement account, that's the point to talk to a licensed financial adviser or an accountant who knows your full picture. This is general education, not a plan for your money.

None of this takes talent. It takes an evening, a notebook, and the willingness to put something down after you've read it and found out it isn't what you hoped. The people who lose money badly are rarely the ones who couldn't understand the filing. They're the ones who never opened it.