Warren Buffett
USA
Net Worth
$144B
Source of Wealth
Berkshire Hathaway
Global Rank
#6 of 100
About Warren Buffett
Warren Buffett, known as the Oracle of Omaha, is widely regarded as the greatest investor in history. As chairman and CEO of Berkshire Hathaway, he has built what began as a struggling textile company into a sprawling conglomerate worth over $900 billion, encompassing insurance, railroads, energy, retail, and manufacturing. His patient, value-oriented investment philosophy — buying wonderful companies at fair prices and holding them forever — has delivered returns that have compounded at roughly 20% annually for nearly six decades.
Buffett's investment acumen is matched only by his wisdom and integrity. His annual shareholder letters are considered essential reading in business education, distilling complex financial concepts into clear, witty prose. He has consistently championed rational thinking, ethical business practices, and the importance of building trust. His circle of competence approach and emphasis on economic moats have influenced generations of investors worldwide.
Perhaps most remarkably, Buffett has pledged to give away over 99% of his wealth to philanthropy, primarily through the Bill & Melinda Gates Foundation and his children's foundations. The Giving Pledge, which he co-created with Bill Gates, has inspired hundreds of the world's wealthiest individuals to commit the majority of their fortunes to charitable causes. His combination of investment genius, personal humility, and extraordinary generosity makes him one of the most admired individuals in the world.
Key Achievements
Greatest Investment Track Record
Grew Berkshire Hathaway's stock from $19 per share in 1965 to over $600,000 per share, delivering a total return of over 4,000,000% and creating enormous wealth for long-term shareholders.
Built Berkshire Hathaway
Transformed a failing textile mill into one of the world's most valuable companies, a diversified conglomerate owning GEICO, BNSF Railway, Dairy Queen, See's Candies, and dozens of other businesses.
The Giving Pledge
Co-founded the Giving Pledge with Bill Gates, inspiring over 230 of the world's wealthiest individuals and families to commit more than half of their wealth to philanthropy.
Investment Education
Authored decades of shareholder letters and public commentary that have educated millions of people about investing, business, and rational decision-making.
Record Philanthropic Giving
Has donated over $55 billion to charitable causes, making him one of the most generous philanthropists in history, with a pledge to give away 99% of his wealth.
Notable Quotes
“Rule No. 1: Never lose money. Rule No. 2: Never forget Rule No. 1.”
— Warren Buffett
“It takes 20 years to build a reputation and five minutes to ruin it. If you think about that, you'll do things differently.”
— Warren Buffett
“Someone's sitting in the shade today because someone planted a tree a long time ago.”
— Warren Buffett
Key Decisions
Began purchasing shares of Berkshire Hathaway, eventually taking control and transforming it from a textile company into a holding company for his investments.
Acquired National Indemnity, entering the insurance industry and gaining access to float — the investment capital from premiums held before claims are paid — which became Berkshire's financial engine.
Began purchasing Coca-Cola stock, eventually acquiring a $1.3 billion stake that would grow to be worth over $25 billion, exemplifying his buy-and-hold philosophy.
Acquired Burlington Northern Santa Fe Railway for $44 billion, calling it an 'all-in bet on the economic future of the United States' during the depths of the financial crisis.
Co-launched the Giving Pledge with Bill Gates, committing to donate more than 99% of his wealth and inspiring a global movement of billionaire philanthropy.
Companies & Ventures
Berkshire Hathaway
$900B+ market capChairman & CEO · Est. 1839 (Buffett took control 1965)
Berkshire Hathaway, originally a struggling New England textile mill, has become the most successful investment conglomerate in history under Buffett's leadership. The company wholly owns over 60 subsidiaries spanning insurance (GEICO, General Re), railroads (BNSF), energy (Berkshire Hathaway Energy), manufacturing, and retail. It also holds a massive equity portfolio with major positions in Apple, Bank of America, American Express, Coca-Cola, and others. A single share of Berkshire Class A stock, which cost $19 when Buffett took control in 1965, traded above $600,000 by 2024.
GEICO
Wholly Owned Subsidiary · Est. 1936 (fully acquired 1996)
GEICO, the Government Employees Insurance Company, was one of Buffett's earliest investment ideas. He first invested in GEICO stock in 1951 at age 20, after reading that his mentor Benjamin Graham served on its board. After GEICO nearly went bankrupt in the 1970s, Buffett invested heavily and eventually acquired the entire company in 1996 for $2.3 billion. Today, GEICO is the second-largest auto insurer in the United States with over 16 million policyholders.
See's Candies
Wholly Owned Subsidiary · Est. 1921 (acquired 1972)
See's Candies may be the most important acquisition in Berkshire history — not for its size, but for the lesson it taught Buffett. Purchased in 1972 for $25 million, See's earned about $2 million pre-tax at the time. But the brand commanded fierce customer loyalty and pricing power — people would pay more for See's chocolates simply because of the name and quality. Over the following five decades, See's has generated over $2 billion in cumulative pre-tax earnings on minimal reinvested capital. It taught Buffett the value of wonderful businesses at fair prices over fair businesses at wonderful prices.
Dairy Queen
Wholly Owned Subsidiary · Est. 1940 (acquired 1998)
Berkshire acquired Dairy Queen in 1998 for $585 million, adding one of America's most beloved quick-service restaurant brands to its portfolio. With over 7,000 locations across the United States and Canada and additional international presence, Dairy Queen is a classic Buffett business — a recognizable brand with consistent cash flows, loyal customers, and a franchise model that generates returns with minimal capital investment.
Investment Principles
Value Investing
The foundation of Buffett's approach, inherited from his mentor Benjamin Graham, is to buy securities at a price significantly below their intrinsic value. Buffett calculates the intrinsic value of a business by estimating the total cash it will generate over its remaining life, discounted back to present value. He then waits — sometimes for years — until the market offers that business at a substantial discount to that intrinsic value. As he puts it: 'Price is what you pay. Value is what you get.'
Circle of Competence
Buffett advises investors to only invest in businesses they deeply understand. He calls this your 'circle of competence' — the collection of industries and business models where you have genuine, hard-earned expertise. The size of your circle doesn't matter; what matters is knowing where the boundary is. Buffett famously avoided technology stocks for decades because they were outside his circle, and he was proven right more often than he was wrong. The discipline is not in expanding your circle, but in refusing to stray outside it.
Economic Moats
Buffett popularized the concept of an 'economic moat' — a durable competitive advantage that protects a company from competitors the way a medieval moat protected a castle. Moats can take many forms: brand strength (Coca-Cola), switching costs (Apple's ecosystem), network effects (Visa/Mastercard), cost advantages (GEICO), or regulatory barriers. Buffett seeks companies with wide, deep moats that are getting wider over time, because these businesses can maintain pricing power and high returns on capital for decades.
Margin of Safety
Borrowed directly from Benjamin Graham, the margin of safety principle means never paying full price — always insisting on a significant discount between the market price and your estimate of intrinsic value. This discount serves as a buffer against analytical errors, unforeseen events, and bad luck. If you estimate a stock is worth $100 and you buy it at $65, you have a 35% margin of safety. Even if your estimate is somewhat wrong, you are still protected from permanent capital loss.
Be Greedy When Others Are Fearful
Perhaps Buffett's most famous maxim: 'Be fearful when others are greedy, and greedy when others are fearful.' This contrarian principle recognizes that the best buying opportunities occur during periods of widespread panic — market crashes, financial crises, and sector collapses. Buffett deployed billions during the 2008 financial crisis, making hugely profitable investments in Goldman Sachs, Bank of America, and General Electric when other investors were fleeing. The courage to buy during terror is what separates great investors from good ones.
Long-Term Holding Period
Buffett's favorite holding period is 'forever.' He views stocks not as pieces of paper to be traded, but as ownership stakes in real businesses. When he finds a wonderful company at a fair price, he holds it for decades — allowing compound interest to work its magic without the friction of capital gains taxes and transaction costs. His positions in Coca-Cola (held since 1988), American Express (since 1993), and Apple (since 2016) have each generated billions in returns through patient, undisturbed compounding.
Management Quality
Buffett places enormous weight on the quality, integrity, and talent of a company's management team. He looks for managers who are passionate about their business, honest with shareholders, rational in capital allocation, and resistant to the institutional imperative — the tendency of organizations to mindlessly imitate peers, resist change, and expand for the sake of expansion. As he says: 'When a management with a reputation for brilliance tackles a business with a reputation for bad economics, it is the reputation of the business that remains intact.'
Simple, Understandable Businesses
Buffett gravitates toward businesses whose economics are simple, transparent, and predictable. He wants to be able to estimate with reasonable confidence what a company will look like in 10 or 20 years. This is why he loves insurance companies (people will always need insurance), railroads (freight will always need to move), and consumer staples (people will always drink Coca-Cola). He avoids businesses that depend on unpredictable technological change or complex financial engineering.
Never Lose Money
Buffett's Rule #1 is 'Never lose money.' Rule #2 is 'Never forget Rule #1.' This is not literally about avoiding all losses — even Buffett has made bad investments. Rather, it reflects his philosophical emphasis on capital preservation. Every dollar lost requires more than a dollar gained to recover (a 50% loss requires a 100% gain to break even). By obsessing over downside protection and demanding a margin of safety, Buffett has compounded Berkshire Hathaway's book value at roughly 20% per year for over half a century.
The Punch Card Approach
Buffett often says that investors should imagine they have a punch card with only 20 slots — representing the total number of investment decisions they can make in their lifetime. Once all 20 slots are punched, they can never invest again. This mental model forces concentration, patience, and extreme selectivity. Instead of making hundreds of mediocre bets, the punch card approach encourages investors to wait for truly extraordinary opportunities and then bet big. As Buffett says: 'The stock market is a device for transferring money from the impatient to the patient.'
Life Lessons & Insights
The Snowball Effect of Compounding
Buffett's life is the ultimate proof of compound interest. He bought his first stock at age 11, filed his first tax return at age 13 (claiming a $35 deduction for his bicycle as a business expense), and by age 30 had a net worth of $1 million. But over 99% of his wealth was accumulated after his 50th birthday. The lesson: start early, be consistent, and let time do the heavy lifting. As Buffett says, 'Life is like a snowball. All you need is wet snow and a really long hill.'
Invest in Yourself First
Buffett frequently says that the best investment anyone can make is in themselves — in their education, skills, communication ability, and health. He credits a Dale Carnegie public speaking course he took in his early 20s as one of the most important investments of his life. 'The one easy way to become worth 50% more than you are now,' he says, 'is to hone your communication skills — both written and verbal.'
Reputation Is Everything
Buffett has made protecting Berkshire's reputation the highest priority of his leadership. His famous instruction to Berkshire managers captures this perfectly: 'Lose money for the firm and I will be understanding. Lose a shred of reputation for the firm and I will be ruthless.' He advises every employee and manager to act as though their actions will be reported on the front page of their local newspaper the next day.
The Inner Scorecard
Buffett draws a distinction between the 'outer scorecard' (how others evaluate you) and the 'inner scorecard' (how you evaluate yourself). He believes that the happiest, most successful people operate primarily from an inner scorecard — doing what they know is right regardless of external validation. His father, Howard Buffett, was his model: a man who voted his conscience as a U.S. Congressman even when it was politically unpopular.
Choose Your Heroes Wisely
Buffett attributes much of his success to choosing the right mentors and heroes. Benjamin Graham taught him the discipline of value investing. Charlie Munger, his partner of over 60 years, taught him to look beyond statistical cheapness toward great businesses with durable competitive advantages. Rose Blumkin, the founder of Nebraska Furniture Mart, taught him what relentless work ethic and customer focus look like in practice. Buffett advises young people to choose their heroes carefully, because you inevitably move in the direction of the people you admire.
Philanthropy
Warren Buffett is one of the most generous philanthropists in human history. In 2006, he announced his plan to give away 99% of his wealth — the vast majority to the Bill & Melinda Gates Foundation. As of 2024, he has donated over $55 billion in Berkshire Hathaway shares, making him the largest charitable donor in history by total amount given. In 2010, Buffett and Bill Gates co-founded The Giving Pledge, a campaign that invites the world's wealthiest individuals and families to commit to giving more than half their wealth to philanthropy. As of 2024, over 240 signatories from 29 countries have joined the pledge, collectively committing hundreds of billions of dollars to charitable causes. Buffett has said: 'There is more than one way to get to heaven, but this is a great way.' His children — Susan, Howard, and Peter — each run foundations that Buffett has funded with billions, focused on education, food security, and social justice respectively.
Deep Dives
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