Most investors open a 10-K and feel the same thing…
A hundred pages of dense text, footnotes that reference other footnotes, and accounting language designed to satisfy regulators rather than inform shareholders.
The result is that most people skip the filing entirely and rely on someone else’s summary instead
That is a problem. The filling is the primary source. Everything else is someone else’s interpretation.
Here is how I use Claude to get through it in 10 minutes and actually understand what matters.
Claude does not replace your judgment. It replaces the part of the process that is slow and mechanical: finding the relevant sections, translating accounting language into plain English, and flagging what changed since last year.
Your job is still to think about what the numbers mean.
Upload the annual report or paste the key sections directly into Claude. Then run these three prompts in order.
Act as a senior equity analyst with 20 years of experience reading financial statements.
I am sharing a financial filing with you. Before we look at any numbers, I want to understand the business first.
Answer the following:
What does this company actually do and how does it make money? Explain the business model in plain English, not marketing language.
What are the two or three things that drive revenue growth or decline for this business?
Who are the main customers and how dependent is the business on them?
What does this company need to go right every year to hit its numbers?
What would a bear case look like for this business in three sentences?
Keep each answer to three to five sentences. No jargon. If something is unclear from the filing, say so explicitly rather than guessing.
This gives you context before you touch a single number. If you do not understand the business model first, the numbers will not make sense anyway.
Now analyze the income statement, balance sheet and cash flow statement from this filing.
I want to understand what changed materially compared to last year. Structure your response as follows:
Revenue: What grew, what shrank and why? Break down by segment if available. Separate volume growth from price growth if the filing allows it.
Margins: What happened to gross margin and operating margin? Did costs grow faster or slower than revenue? What is management’s explanation and do the numbers support it?
Cash generation: How much free cash flow did the business produce? How does that compare to reported net income? If there is a large gap between the two, explain why.
Balance sheet: Did debt go up or down? How does net debt compare to EBITDA? Is the cash position stronger or weaker than last year?
Red flags: Flag any line items that moved significantly without a clear explanation in the filing. Flag any accounting changes, one-time items or adjustments that management is using to make results look better than they are.
Be specific. Use actual numbers from the filing, not vague descriptions.
This is where Claude earns its keep. It reads the footnotes, catches the one-line disclosures buried on page 67, and surfaces the things management would prefer you not notice.
Now read the letter to shareholders and the management discussion and analysis section of this filing.
I want you to do one specific thing: compare what management is saying to what the numbers actually show.
Structure your response as follows:
What management emphasizes: List the three to five main points management is making about performance, strategy and outlook. Use their own language.
What the numbers show: For each point, tell me whether the financial data supports or contradicts the claim. Be direct. If management says margins improved but gross margin fell, say that clearly.
What management is not talking about: What material developments in the numbers receive little or no attention in the narrative? What would a skeptical investor want explained that management has glossed over?
Overall narrative quality: Rate management’s transparency as High, Medium or Low. Explain your reasoning in two to three sentences.
This is not about finding fault. It is about understanding whether management is being straight with shareholders or managing the message.
This is the most valuable prompt. Management letters are written to present the best version of events. The gap between what they say and what the numbers show is where the real insight lives.
In 10 minutes you have a clear picture of what the business does, what changed materially in the last year, and whether management is being straight with you.
That is enough to decide whether the company deserves deeper research or whether you move on.
Most filings do not survive prompt three. That is useful information too.
Claude works with what you give it. If you paste in a poorly formatted PDF extract, the output will reflect that. The cleaner the input, the sharper the analysis.
For best results, use the HTML version of the filing from the SEC EDGAR website rather than a scanned PDF.
Copy these three prompts and try them on any company you are researching this week.
If you want ten more prompts built around the same workflow, the AI Investing Lab Prompt Library has you covered.
No posts
Comments
Nothing yet. Say the first thing.
Sign in to join the conversation.