The Moat Around the Castle: Warren Buffett's Timeless Investment Wisdom

Warren Buffett's Investment Best Practices

Based on Buffett's 1986 letter to Berkshire Hathaway shareholders, here are his key investment principles:

Focus on Business Fundamentals

  • Seek businesses with "excellent economics, run by talented, high-grade" managers who love what they do
  • Look for companies with strong market positions, high returns on capital, and outstanding management
  • Avoid businesses requiring significant additional capital to maintain competitiveness

Acquisition Criteria

  • Large purchases (at least $10M in after-tax earnings)
  • Consistent earning power (not future projections or turnarounds)
  • Good returns on equity with little or no debt
  • Management team already in place
  • Simple businesses without complex technology
  • Clear offering price

Long-Term Ownership Perspective

  • Hold onto great businesses permanently rather than trading actively
  • Work with people you like and admire - this maximizes chances for good results
  • The "activity" mindset prevalent in corporate America and investment management is often counterproductive

Market Psychology & Timing

  • "Be fearful when others are greedy and greedy only when others are fearful"
  • Recognize that fear and greed periodically sweep through markets
  • Don't try to time these swings, but be prepared to act when opportunities appear

Capital Allocation

  • Proper capital allocation is crucial to long-term success
  • Shareholders' interests are best served when excess capital is deployed in businesses with excellent economics
  • Be willing to hold cash when attractive opportunities aren't available

True "Owner Earnings"

  • Focus on true economic earnings rather than accounting figures
  • Consider what a business can generate after maintaining competitive position and unit volume
  • Be skeptical of "cash flow" figures that don't account for necessary capital expenditures

Patience & Discipline

  • Be willing to wait for the right opportunity rather than compromising standards
  • Recognize that "no deal" is better than a mediocre one
  • Maintain rational expectations about future returns as size increases