Good morning, let’s get into it!

I hope you had a great holiday break. I had one, but now I’m back in business. Let’s get into one of the most interesting lessons on investing inspired by Charlie Munger and Benjamin Graham.

1. Learn the Language of Investing

  • Start with basic accounting: Benjamin Graham’s "The Interpretation of Financial Statements" is recommended as the foundational text.

  • Master four key concepts: Understand how compound interest, present/future value, inflation, and the difference between price and value shape every decision.

  • Analyze cash flow: Understand the mechanics of how cash actually moves through a business.

  • Monitor growth metrics: Ensure that inventory and accounts receivables are not growing faster than overall sales.

2. Buy High-Quality Companies Below Intrinsic Value

  • Use a Margin of Safety: Only buy businesses when the market price is significantly lower than what the business is actually worth.

  • Evaluate Leadership: Look for management teams that are trustworthy and focused on shareholder interests.

  • Identify Moats: Ensure the business possesses a real, sustainable competitive advantage.

  • Capital Allocation: Verify that management invests the company's capital rationally and efficiently.

3. Concentrate Your Portfolio

  • Limit Diversification: Holding 10 to 12 stocks provides enough protection against specific risks without simply "tracking the market."

  • Bet Big on Great Ideas: When a high-conviction opportunity arises, buy a meaningful amount rather than a small position.

  • Minimize Turnover: Keep trading to a minimum to avoid losing money to commissions and taxes.

4. Build a Latticework of Mental Models

  • Multidisciplinary Learning: Develop a framework of models from various fields (like physics, biology, and psychology), not just finance.

  • Key Models to Use:

    • Inversion: Thinking about problems backward to avoid failure.

    • Opportunity Costs: Evaluating what you give up by choosing one investment over another.

    • Map vs. Territory: Remembering that the theory/model is not the reality.

    • Asymmetric Bets: Seeking situations where the potential upside far outweighs the downside.

5. Get the Psychology Right

  • Anticipate Volatility: Understand how market swings will affect your emotions and decisions before they happen.

  • Practice Patience: Conviction and patience are described as the core "job" of an investor.

  • Trust Your Research: Stand by your conclusions even (and especially) when the market disagrees with you.

  • Delay Gratification: Developing the ability to wait for long-term results is one of the biggest competitive edges an investor can have.

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