Compounders & Quality
Warren Buffett
Buy a durable business at a sensible price, let it compound, and treat the market as a servant, not a guide.
Warren Buffett ran the investment partnership from 1956 and has led Berkshire Hathaway since 1965, turning a failing New England textile mill into a holding company that owns insurers, a railroad, utilities, and large stakes in listed businesses. What makes him worth studying is not the size of the result but the visibility of the method: for sixty years he has written it down, in plain language, in the annual letters - including, unusually, the mistakes. He is the clearest available worked example of reading a business rather than a ticker.
The method
Concentrated, long-holding-period ownership of businesses he believes he understands. He works from published accounts and his own reading of competitive position, not from forecasts or macro calls; he prizes managers who allocate capital well; he uses the float from Berkshire's insurers as patient, low-cost leverage; and he does very little - years can pass between major decisions. Turnover is near zero by design.
The record
Berkshire's book value per share compounded at roughly 19–20% a year over more than five decades, versus about 10% for the S&P 500 with dividends - one of the longest documented outperformance records in public markets. Treat the exact figures with care: they are Berkshire's own reported book value, the early partnership years used different capital, and the edge has narrowed sharply as size grew. The record is real; the replicability is not.
Where they were wrong
By his own account: holding the Berkshire textile mill far too long out of attachment; buying Dexter Shoe with Berkshire stock for a business that went to zero - a permanent, compounding cost; underrating technology for decades; the misread of airlines (twice); and stakes where the moat analysis was right but the governance or culture was not. He records these deliberately, because a record without failures teaches survivorship bias.
Studies
16- Study 01The Moat Around a BusinessName the reason rivals cannot copy the business, or there is no moat - only good weather that will pass.Read this study →
- Study 02The Real Cash a Business MakesDont ask what a business earned - ask how much you could take out and still own the same business tomorrow.Read this study →
- Study 03Money You Hold That Isnt YoursFloat is other peoples money you may invest but must one day return - a gift only while the insurance stays honest.Read this study →
- Study 04The Sweet Shop That Raises PricesThe best business raises its price without losing the customer and grows without needing your cash back.Read this study →
- Study 05Knowing What You UnderstandKnow the edge of what you understand, and put everything past it in the too-hard pile without shame.Read this study →
- Study 06Mr. Markets Moody PriceThe markets price is an offer, not a verdict - a helper to use at the extremes, never a boss to obey.Read this study →
- Study 07The One-Rupee TestJudge the bosses by whether each rupee they kept became at least a rupee of worth - and ask them to pay out what they cannot use well.Read this study →
- Study 08Buybacks: The Price DecidesCheer a buyback only when the company is buying its own shares below what they are worth - otherwise it is overpaying the sellers with your money.Read this study →
- Study 09Dexter Shoe: His Worst DealHow you pay can matter more than what you pay - never hand over shares of a growing business for something that wont grow.Read this study →
- Study 10The Mistake He Named the Company AfterCheap is not the same as good, and money already spent is never a reason to pour in more.Read this study →
- Study 11Brave When Others Are ScaredYou cannot decide to be brave in a crash; you can only arrive already holding cash, owing nothing, and knowing what things are worth.Read this study →
- Study 12The Business He Mocked, Bought, Then FledA business with no pricing power and huge fixed costs fights price wars that eat its money, and this time its different is the most expensive thing you can say.Read this study →
- Study 13The Profit Hiding Under the WaterCount the profits working for you, not just the dividends you receive - but only when the company grows what it keeps as well as you could.Read this study →
- Study 14Inflation: The Hidden TaxPrices climb every year, so ask of any business: when its costs rise, can it raise its own prices and keep its customers?Read this study →
- Study 15The 20-Hole Punch CardAct as if you had only twenty decisions in your whole life: say no to almost everything, then move calmly on the rare great idea and sit still.Read this study →
- Study 16When Companies Copy the HerdWhen a company makes a big move, ask whether the managers thought for themselves or just copied the crowd.Read this study →
Primary sources
full register →Read Warren Buffett in their own words. We reproduce none of it - these are the real things to go to.
Berkshire Hathaway Shareholder Letters (1977–2024) letters
The full official archive of Buffett's annual letters - the clearest running record of how he reads a business, allocates capital, and, unusually, names his own mistakes.