Compound With AI
Get weekly AI-powered investing workflows and prompts to understand any business 10× faster.
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- Recommends
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What they write about
Weekly workflows and prompts for using large language models in investment research. Recurring subjects include reading filings such as the 10-K with AI assistance, comparing two businesses, building balance-sheet and macro analysis workflows, and assessing country and supply-chain risk.
- ai tools
- investment research
- financial statements
- prompts
- workflows
Recent examples: What a 129-Year-Old Idea Taught Me About AI for Investing · The 3 building blocks of the modern AI investor
Written from Compound With AI’s own published post titles and openings in Sep 11, 2026. It describes the subjects the newsletter covers, not its views, and is not investment advice.
Growth history
Subscribers (thousands, nightly)
66K on Sep 10, 2026 → 67K on Oct 21, 2026
Followers (thousands, nightly)
Rank in Substack’s finance leaderboard: #71 today · #61 a week ago · #64 a month ago
Stats worth sharing
Tracked since Sep 10, 2026 — 42 daily snapshots so far. The card below is built from what we track and refreshes nightly.
- Percentile
- Top 14%
- Best rank seen
- #58
- Rank, 7 days
- −10 places
- Rank, 30 days
- −7 places
- Subscribers added
- +1.0K
- Followers added
- +1.2K
- Posts
- 5
- Reactions per post
- 38
- Reactions tracked
- 768
of 525 ranked finance newsletters
on Sep 23, 2026
since tracking began
since tracking began
last 30 days
average, recent posts
across 20 posts
Most-reacted post we have seen: What 3,500+ prompts taught me about using AI for Investing — 77 reactions on Sep 6, 2026.
Recent posts
- What a 129-Year-Old Idea Taught Me About AI for Investing
“Why is our most expensive machine not running?”
- The 3 building blocks of the modern AI investor
AI is moving incredibly fast. I know, you’ve probably heard that a thousand times… Every week, there’s something new. But over time, one thing has become clear to me: The tools keep changing. The principles behind good investing research don’t. That’s why I’ve built a research process that evolves with AI, instead of starting from scratch every time a new model comes out. Today, I want to share the 3 building blocks behind that process. I’ll show you: Why each one matters. How to use them correctly. And how they all work together. The best part? These building blocks don’t depend on Claude…
- How to turn AI into a real investing analyst
I can tell the difference between an investor who uses AI as a real research tool and one who uses it like a gadget based on one thing: How specific their questions are when using AI. That’s it. You may be thinking: My questions are already specific. Let me tell you a secret: they probably aren’t that specific. Specificity has levels. And that difference can take AI from random answers to real research. Why? Because: The deeper you go, the fewer decisions you leave to AI. You decide what to research. What information matters. How to analyze it. And what a useful answer looks like. This is the…
- How to analyze 10 years of financials in minutes
This question used to take an analyst days to answer: How did this business evolve over the last 10 years and what drove the changes in revenue, margins, and cash flow? To answer it, you had to figure out: Where growth really came from :organic growth, acquisitions, pricing, volume? Why margins changed : Operating leverage, accounting, or temporary effects. Where the cash actually went : reinvestment, acquisitions, buybacks, or dilution. It means digging through 10 years of filings, rebuilding the financial history, and turning it all into one clear memo. Now you can get that first pass with…
- Replay: How I Use AI to Research Stocks
I sat down with René to walk through how I actually use AI for investing. from researching a new company to deeper analysis and repeatable workflows. Watch the replay Get more from Compound With AI in the Substack app Available for iOS and Android Get the app
- The AI Investing guide I wish I had when I started
“3 more kids and we might finally have this parenting thing figured out” That’s what I told my wife 10 days after our second child was born. She didn’t seem very excited about the idea of 3 more.. But the joke wasn’t completely wrong. With our first child: Every problem felt new. Now we recognize things we’ve already seen before. Everything felt important. Now we know what actually deserves attention. We researched everything from scratch. Now we reuse what already worked and continue to learn. At this point you may be thinking: “Mostapha, I’m not here for parenting and life advice.” Fair…
- How I use AI to research stocks: My 4-step process
The idea behind my AI investing process is simple: AI solves a different problem at each stage of the investing process. For New ideas: AI helps research more companies, faster, so I can see more opportunities. Going deeper: AI helps understand the business better and surface things I may have missed manually. Building the thesis: AI will challenge my assumptions and find what could prove me wrong. After I buy: AI will track earnings, new risks, and what materially changed in the thesis. Here is how I use AI at each step. The 4-Step AI Investing Process: 1. Overview: Understand more…
- Before you trust a stock pitch, run It through Claude
An email lands in your inbox. Your favorite investing newsletter just published a new stock idea. You open it. Start reading: The business looks good. The numbers make sense. The upside looks attractive. A few minutes later, you’re checking the stock price. But before you go further, something bothers you. Is that growth assumption realistic? Can margins really go that high? Did the author miss something? So you open Claude to check the growth assumptions, profit margins, and math behind the stock pitch. Here’s what that looks like with a real example : I picked a stock pitch from Value…
- What 3,500+ prompts taught me about using AI for Investing
I’m up 23% YTD. And since I started using AI in 2025 I’ve compounded at 19% a year. Did Claude and Gemini cause those returns? I’d be fooling myself if I said yes… But here’s what I can say with confidence: AI has made me a better investor, and I sleep better at night because of it: I’ve researched more companies and industries than ever before. I know the stocks I own today in more depth than I ever did before. I’ve rejected more investment ideas because I found risks much earlier in the process I’ve gone much deeper into the details, edge cases, and unanswered questions I used to leave…
- Use AI to compare any 2 stocks (Find the better business)
After 3 hours of research, the industry finally starts to click... Yes. We’re getting somewhere ! The industry tailwinds look real. Now,you have 2 annual reports open side by side. Both companies look attractive. Which is annoying ! Because now you have to decide: Which one is worth another 3 hours of your time? A famous meme, in case you don’t know it: “Please tell me we’re not doing this the painful way… right?” I taught Claude how to compare any 2 stocks in the same industry the way I want to compare them: Where growth comes from Who has the better cost engine Who has more competitive…
- Use Claude to learn any stock from scratch
A few days ago I was running a workshop on how I use claude for investing. I was explaining how AI transformed the first step of my process: The Overview phase. This is where I try to understand the basics of a company and its industry before going deeper. My 4 step Investing process with AI I needed an example… But using a stock I already knew would be dishonest. Then I remembered Martin Marietta. I had recently seen on X that Chris Hohn bought the stock. One participant said: I know this business. I knew nothing about the company. I said: great exemple ! So I opened Claude and showed them…
- I'm begging you to start using AI for investing (Before you fall behind)
I’m begging you to start using AI as an investor for a simple reason: AI will improve your returns. Not with some magic AI stock picks.. but because it improves the 3 things that drive investing returns: More opportunities × Better picks × Smaller losses Here’s how AI helps with each one: #1 AI cuts research time, so we can look at more stocks: Toyota went from selling textile machines to the world’s largest carmaker, selling 11+ million vehicles a year. One simple idea helped build this giant: Cut the work that adds no value. Let’s be honest: we spend a lot of time doing work that needs to…
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Data: Substack public leaderboards and publication archives, refreshed nightly, plus public beehiiv sitemaps and recommendation pages, refreshed weekly. Source for this page: Compound With AI. Subscriber counts are Substack’s own rounded public figures, so week-on-week changes move in steps. beehiiv audience sizes are self-reported by the publisher and are not verified. Last snapshot: Oct 21, 2026.