Berkshire Hathaway
high confidence — compiled with source citation from the investment brain.
Berkshire Hathaway
Berkshire Hathaway
Berkshire Hathaway is the conglomerate that warren-buffett has built and run since 1965, originally as a textile manufacturer and later as a holding company for insurance, operating businesses, and a large equity portfolio. Its 49 shareholder letters (1977–2025) are the primary source for its philosophy and history in this wiki.
The letters describe a business built on a simple idea with enormous second-order consequences: accumulate quality businesses with durable advantages, fund them with insurance float, and redeploy the resulting cash into more of the same. Buffett summarizes the three jobs of Berkshire's capital as: (1) maintaining fortress-like financial strength, (2) widening the moats around our operating businesses that give them durable competitive advantages, and (3) acquiring and developing new streams of earnings. See moats and capital-allocation.
The model crystallized in 1972 with the purchase of See's Candy, a business then earning about $4 million pre-tax on $8 million of net tangible assets but holding an unbooked asset — "a broad and durable competitive advantage that gave it significant pricing power." Buffett bought it for $25 million (the family wanted $30 million), and reports that See's has since earned $1.9 billion pre-tax while requiring only $40 million of incremental investment — cash that helped fund the purchase of other businesses. GEICO plays an analogous role in insurance: its low-cost structure is, in Buffett's words, "a moat – an enduring one – that competitors are unable to cross", letting it grow its share from 2.5% in 1995 to 10.8% by 2014.
Berkshire's stated objective is the long-run growth of intrinsic value per share, with book value treated as "a conservative, but useful, proxy." Buffett explicitly prefers intrinsic value to book as the measure that matters, and has long reported the two components of value — investments and operating earnings — separately so shareholders can judge progress.
A defining feature of Berkshire is its flexibility in capital allocation. Unlike firms limited to acquisitions they can operate, Berkshire can deploy large sums passively into non-controlled businesses — "a significant edge over companies that limit themselves to acquisitions they will operate." Share repurchases are an explicit tool, undertaken "when they trade below our estimate of intrinsic value, conservatively determined."
The 2025 letter, written around Buffett's leadership transition, frames the enterprise as built to outlast its founders: they "combined world-class capital allocation with the vision and leadership" that left the business "fully equipped to transition from founder-led to one well-positioned for the next 60 years." Buffett has also been candid about the flip side of his record: several acquisitions were "serious mistakes I made in my job of capital allocation", producing very poor returns.
See howard-marks for a contrasting, risk-first style of investing against which Berkshire's quality-first approach is often weighed.
See also
- index-vs-active-bets
- berkshire-protege-index-bet
- graham-era-vs-modern-intangibles
- concentrated-vs-diversified
Investment philosophy
The compiled, source-grounded version of this investor's beliefs lives at investment philosophy.
Sources
berkshire-hathaway/Letters-Markdown/2008 - Letter to Shareholders.mdberkshire-hathaway/Letters-Markdown/2014 - Letter to Shareholders.mdberkshire-hathaway/Letters-Markdown/2015 - Letter to Shareholders.mdberkshire-hathaway/Letters-Markdown/1992 - Letter to Shareholders.mdberkshire-hathaway/Letters-Markdown/1997 - Letter to Shareholders.mdberkshire-hathaway/Letters-Markdown/2025 - Letter to Shareholders.mdberkshire-hathaway/Letters-Markdown/2012 - Letter to Shareholders.md