Ian Cassel

Ian Cassel

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Founder, MicroCapClub; long-term microcap equity investing.

Wealth Requires Constantly Rebuilding Your Portfolio
SocialMay 27, 2026

Wealth Requires Constantly Rebuilding Your Portfolio

New Article The portfolio that made you made money five years ago is a historical artifact. The portfolio that keeps you wealthy is the one you have the courage to keep rebuilding. https://t.co/4x8E2bMPMq

By Ian Cassel
Norse Raiders' Tactics Reveal Microcap Investing Secrets
SocialMay 12, 2026

Norse Raiders' Tactics Reveal Microcap Investing Secrets

Here is a new presentation. What three centuries of Norse raiders teach us about microcap investing. https://t.co/Y2R74Vus9F

By Ian Cassel
Follow Buffett’s Lead: Side‑car Investing Pays Off
SocialMay 9, 2026

Follow Buffett’s Lead: Side‑car Investing Pays Off

Hat tip to Ron Baron. It's acceptable to hitch your sidecar to Buffett and $BRK. Baron did it by hitching his sidecar to Elon Musk early on. https://t.co/ZW7B0xDE3M H/T @mastersinvest https://t.co/OO0uWVlMOt

By Ian Cassel
Discover My Top Recommended Investing Book
SocialMay 9, 2026

Discover My Top Recommended Investing Book

This week I wrote about one of the best investing books I've ever read. https://t.co/80gBuYmXRm

By Ian Cassel
Long-Term Success Demands Short-Term Humility
SocialMay 8, 2026

Long-Term Success Demands Short-Term Humility

To be right in the long-term, you must be willing to look wrong in the short-term.

By Ian Cassel
Talk to Management Early to Uncover Deal‑Breaker Insights
SocialMay 5, 2026

Talk to Management Early to Uncover Deal‑Breaker Insights

When investing in small public companies you can’t afford to wait until the end of your due diligence to talk to management. Why? Oftentimes one management conversation unearths differential insights that make the company completely un-investable or 3x more interesting...

By Ian Cassel
Lynch's “Know What
SocialMay 4, 2026

Lynch's “Know What

In 1977, Peter Lynch took over the Magellan Fund. In his first year the fund at 41 stocks and 343% turnover. By 1983, the portfolio expanded to 900 stocks, and by 1989 it owned 1,400 stocks. Lynch believed in "investing...

By Ian Cassel
Sibling Differences Reveal Unique Attachment Needs
SocialMay 3, 2026

Sibling Differences Reveal Unique Attachment Needs

It’s always surprising how each of your kids are so different. My son reaches for my hand all the time. My daughter pushes it away. 😔

By Ian Cassel
Youthful Voices Guard Veteran Investors From Risk Paralysis
SocialApr 29, 2026

Youthful Voices Guard Veteran Investors From Risk Paralysis

The natural course for stock pickers is to get more negative and contrarian as you age. You develop more experience in how quickly good things can come to an end in every facet of life, business and the markets. It...

By Ian Cassel
Forge Your Own Path, Avoid the Imitation Trap
SocialApr 29, 2026

Forge Your Own Path, Avoid the Imitation Trap

Master and Apprentice The perils of imitation and the discipline of making your own path https://t.co/JTphNs0tse

By Ian Cassel
Over‑prepare to Honor the Moment and Showcase Your Best
SocialApr 28, 2026

Over‑prepare to Honor the Moment and Showcase Your Best

Over preparing is the key to success. It shows you respect the situation (the interview, the meeting, the presentation, the test, the tryout, etc) and it shows off the best of who you are with no regrets regardless of the...

By Ian Cassel
Prioritize Business Fundamentals over Short‑term Price Predictions
SocialApr 25, 2026

Prioritize Business Fundamentals over Short‑term Price Predictions

The wrong mindset - "I think the stock will be up/down 10% tomorrow, next week, next month." The right mindset - "I don't care what the stock does tomorrow, next week, next month. I think the business will be worth...

By Ian Cassel
Human Interaction Beats AI in Investment Edge
SocialApr 24, 2026

Human Interaction Beats AI in Investment Edge

AI is great to supplement the investment process, but it's funny how the simple things are still incredibly useful. For example, listening live and/or participating live on earnings calls (versus reading the transcript later), talking to management 1x1, visiting management...

By Ian Cassel
Balance Growth Stories with Survival Fundamentals Across Markets
SocialApr 24, 2026

Balance Growth Stories with Survival Fundamentals Across Markets

In bull markets investors focus on the story and growth. In bear markets investors focus on the balance sheet and survival. The key is focusing on all these things.

By Ian Cassel