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I write about stocks and how insights from diverse disciplines—history, mathematics, psychology, etc.—can enhance fundamental equity research. Join 3,000+ investors getting interdisciplinary insights weekly.

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Latest Issues

Emerging Champions: Small-Cap Stocks with Hidden High-Growth Segments (And 7 Worth Watching)

A famous Thai Buddha statue, once hidden under plaster, revealed its true nature as solid gold after 200 years – a real-life example of hidden value finally coming to light.

In the mid-1950s, workers at a modest Bangkok temple made a start...

a year ago
34
9

What Would Prove You Wrong? The Most Important Question In Investing

Polymath Investor. (2025). “The Scientific Method Meets Your Bull Thesis”.

Sometimes I like to begin these articles with a thought experiment. So, if you’re willing, indulge me for a moment.

Let’s imagine two investors initiating a positi...

a year ago
26
2

Moury Construct SA (MOUR): A €213M Small-Cap With €116M Net Cash, and ~10% Revenue Growth — Trading at Just 3x LTM EV/EBITDA

Technical expertise, decades of reputation and client relationships: Exploring a rare European gem with the kind of value-for-money I haven’t seen in a long time

Dear Reader: This is the third investment write-up I publish here, and it’s a...

a year ago
24
9
Paid

On Why Carrying a Notebook Might Make You a Better Investor

Polymath Investor. (2025). “Freenoting For Business Insight"

I have an old-fashioned belief that I only should expect to make money in things that I understand. I don’t mean understand what the product does. I mean understand what the ec...

a year ago
66
18

Some Thoughts on GOOG: An 'Emperor Has No Clothes' Moment

Polymath Investor. (2025). “Google Search In Trouble"

I worked at Google from before the Global Financial Crisis until 2010.

I still regret not keeping those RSUs (or GSUs as they call them). It’s been a 10x since then.

Yet, on Wednesda...

a year ago
33
4

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Authors

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  • Polymath Investor

    i write about stocks and how ideas from other fields improve investing. not investment advice.

  • Safe Harbor Stocks

    Anchored in Safety. Built for Growth.

  • Kristopher Rymer

    Safe Harbor Stocks, Full-Time Private Investor Co-Founder and Co-Author at Accredited Investor Insights

  • James Emanuel

    A lawyer turned investor, he improves the fortunes of the companies in which he has a financial interest. His book, ‘Fabric of Success, Golden Threads Running Through the Tapestry of Every Great Business’ captures the essence of a great investment.

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