Alejandro Arce — home Thinking in Public
No. 06 · Investing

My personal investing update machine

Built with Claude. Updated every morning.

I wanted a personalized investing update in my inbox on the companies I follow, so I created a system where every morning it pulls the latest stock price, scrapes the day's top news, and uses Claude to summarize what's happening in one line per company — plus the 3–5 best links if you want to dig in.

Then I got fancy, and asked it to simulate me investing $100 every Monday in each public company I'm tracking — you can see for yourself the results. (It's not the best idea)

Then I added a group of companies that are private but are expected to go public soon, just so I can keep my finger on the pulse.

And I get the one-liners and stock price per company in my inbox — and if I want more detail I go to the live page, and I can change it as I please when I please.

The trending tracker dashboard showing ticker rows with price changes and a portfolio balance chart

The machine — price, sentiment, news, and the $100/week simulation

See it running. Today's snapshot is live.

Every company I'm watching — price, one-line sentiment, the day's best links, and the full portfolio simulation.

Open the live page
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