INVESTOR LETTER #132
Concentrated Investing
While diversification spreads risk across many investments, concentrated investing takes the opposite approach. It means investing a significant portion of your portfolio in a small number of businesses that you understand exceptionally well. Done wisely, it can produce outstanding returns. Done carelessly, it can lead to devastating losses. Concentration rewards knowledge—but punishes overconfidence.
INVESTOR NOTE
A business owner thinks in decades. A speculator thinks in minutes.
Would You Bet Equally on Every Idea?
Imagine you've researched ten businesses. Two of them stand out as exceptional, while the others are simply good. Would it make sense to invest the same amount in all ten? Many great investors believe their best ideas deserve more capital.
What Is Concentrated Investing?
Concentrated investing means building a portfolio with relatively few stocks, giving each one a meaningful allocation. Instead of owning dozens of companies, the investor focuses on a small number of high-conviction ideas.
Conviction Must Come From Research
A concentrated portfolio isn't built on confidence alone. It should be supported by deep research, a clear understanding of the business, trustworthy management, and a reasonable valuation.
High Reward Comes With High Responsibility
If your best ideas turn out to be correct, a concentrated portfolio can outperform a broadly diversified one. But if you're wrong, the losses can also be much greater. Concentration magnifies both success and mistakes.
Know the Business Exceptionally Well
The fewer companies you own, the better you should understand each one. You should know how the business makes money, what its biggest risks are, who its competitors are, and what could permanently damage its future.
Concentration Isn't the Same as Gambling
Putting all your money into a stock because of a tip or social media hype isn't concentrated investing—it's speculation. True concentration is based on knowledge, not excitement.
Stay Humble
Even after months of research, unexpected events can happen. Regulations change, technologies evolve, and management teams make mistakes. A concentrated investor must constantly question their own assumptions instead of becoming emotionally attached to a stock.
You Don't Need to Copy Famous Investors
Many legendary investors have run concentrated portfolios, but they also spent decades studying businesses. Their strategy worked because of their knowledge—not simply because they owned fewer stocks.
Concentration Requires Emotional Strength
When a stock represents a large portion of your portfolio, price swings become much harder to ignore. Staying calm during market volatility requires confidence that comes from understanding the business, not from watching the share price.
Know Which Strategy Fits You
Some investors sleep better with broad diversification, while others prefer concentrating on a handful of exceptional businesses. Neither approach is universally right or wrong. The best strategy is the one you can follow consistently through both good markets and bad.
Concentrate Only When You've Earned the Right
Concentrated investing should be the result of exceptional understanding, not exceptional optimism. If you know a business deeply and have strong evidence supporting your investment thesis, concentration can be rewarding. Otherwise, diversification is often the wiser path.
INVESTOR PRINCIPLE