Investment Concepts

The discounted value of the cash that can be taken out of a business during its remaining life. It is an estimate rather than a precise figure, and is necessarily subjective. The two key variables are future cash flows and the appropriate discount rate.

The process by which earnings are reinvested to generate additional earnings over time. Buffett describes compounding as the most powerful force in investing and has made it the cornerstone of Berkshire's capital allocation strategy.

The principle of only buying securities when their market price is significantly below their intrinsic value, providing a cushion against errors in calculation or unforeseen developments. First articulated by Benjamin Graham.

A sustainable competitive advantage that allows a business to fend off competitors and maintain high returns on capital for long periods. Buffett described it as a "城堡" (castle) protected by a moat — the wider and more durable the moat, the more valuable the business.

The area around an investor's genuine expertise — businesses and industries they understand well enough to evaluate with reasonable confidence. Buffett emphasizes staying within this circle rather than attempting to evaluate businesses outside it.

The money that insurance companies hold between收取 premiums and paying claims. For Berkshire's reinsurance operations, float is essentially "free" capital that can be invested at high returns. Buffett describes it as the "Gitl" (little girl) that Berkshire has been raising.

The process of deploying the cash generated by a business — or received from operations — into the highest-return uses: reinvestment in the business, acquisitions, dividends, or share repurchases. Buffett considers this the CEO's most important job.

The strategy of buying securities with the intention of holding them for a very long period — ideally forever. Buffett's quote: "Our favorite holding period is forever." Emphasizes the benefits of minimizing taxes and transaction costs.

The discipline of buying securities for less than their intrinsic value and holding them until the market corrects the mispricing. Originated with Benjamin Graham and David Dodd, refined by Buffett into "quality at a reasonable price" (GARP/QARP).

Buying entire businesses. Buffett's criteria: good businesses (high ROE, durable moat), at fair prices rather than bargain prices, run by honest and competent managers. Avoids synergies, diversification-for-its-own-sake, and companies in distress.

Buying cheap businesses — "cigar butts" — at very low prices, hoping to profit from a final puff (asset liquidation) rather than future earnings. Buffett abandoned this Grahamian approach in the mid-1970s in favor of buying "wonderful businesses at fair prices."

The return foregone by choosing one investment over the next best alternative. Buffett applies opportunity cost rigorously, preferring to hold cash rather than invest in marginal opportunities that don't meet his return thresholds.

Net income divided by shareholders' equity. Buffett pays close attention to this metric, noting that a business earning high ROE on little or no equity is far superior to one earning low ROE on a large equity base.

A business that sells a product or service that is needed or desired by customers, is not substituable, and is not regulated by a commodity-like pricing structure. Franchises can sustain pricing power and high ROE indefinitely.

The price at which a wonderful business can be purchased without overpaying. Buffett uses intrinsic value as the anchor for determining a fair price, paying less attention to the precise moment of purchase than to the quality of the business.

Thinking that goes beyond the conventional consensus. First-level thinking is simplistic and inward-looking; second-level thinking requires understanding what others think and why, and then making a better decision.

Net income plus depreciation, depletion, and amortization, minus the average annual amount of capital expenditures required to maintain the business at its current competitive position. Buffett's preferred measure of corporate profitability over reported accounting earnings.

A structural characteristic of a business that allows it to consistently earn returns on capital above its cost of capital. Often synonymous with economic moat, but broader in scope.

An accounting liability representing future taxes that will be paid when appreciated securities are sold. Buffett views unrealized gains as creating a "deferred tax liability" that must be considered when evaluating intrinsic value.

A business with no significant debt obligations. Buffett prefers businesses that operate with little or no debt, as they are more resilient during economic downturns and avoid the agency problems associated with leverage.

A business with durable competitive advantages, excellent management, and the ability to compound value over decades. Buffett's evolved strategy: It is far better to buy a wonderful business at a fair price than a fair business at a wonderful price.

The divergence between reported accounting earnings and true economic earnings. Buffett emphasizes that GAAP accounting can create misleading impressions — goodwill amortization, inventory methods, and depreciation can all distort reported figures.

The premium paid over book value in an acquisition. Buffett distinguishes between "goodwill" that represents genuine economic value (from durable competitive advantages) and goodwill that is merely accounting goodwill with no real significance.

The tendency of diversified conglomerates to trade at a discount to the sum of their parts. Buffett has used this to Berkshire's advantage, sometimes spinning off divisions at a premium to their intrinsic value.

Using borrowed money to amplify investment returns. Buffett has consistently avoided leverage except in rare circumstances, noting that leverage magnifies both gains and losses and can permanently impair capital.

The cash generated by a business after all operating expenses, capital expenditures, and working capital investments. Buffett uses this to evaluate whether a business is a "cash machine" or "cash consumer."

A business that generates high returns on equity while requiring minimal net tangible assets is exceptionally valuable. This is the hallmark of an "asset-light" or "franchise" business.

When a company buys back its own shares, increasing the ownership stake of remaining shareholders. Buffett will repurchase Berkshire shares when they trade below intrinsic value, calling it the "most attractive capital allocation decision" available.

The average cost of all capital (debt and equity) used to finance a business. Buffett focuses on whether a business earns returns above its cost of capital as the fundamental test of value creation.

An agreement in an acquisition contract preventing sellers from competing with the buyer. In the context of small business acquisitions, Buffett notes these are largely unenforceable and should be ignored in valuation.

Market capitalization plus debt minus cash. Represents the true cost of acquiring a business. Buffett prefers to think in terms of enterprise value and the cash generated relative to that cost.

Stocks traded over-the-counter rather than on major exchanges. Buffett's early returns were significantly boosted by finding undervalued OTC stocks that required detailed analytical work to identify.

The fictional character of a hypothetical long-term Berkshire shareholder, invented by Buffett to illustrate the experience of passive Berkshire owners who benefited enormously from compounding without ever needing to act.

In 2007, Buffett bet $1 million that a low-cost S&P 500 index fund would outperform a hedge fund portfolio over 10 years. The bet ended in 2017 with the index fund winning decisively. Used to illustrate the futility of high fees in active management.

The tendency of organizations to imitate each other's behavior regardless of logic or results. Buffett's term for the irrational conformity in corporate decision-making, where managers follow industry peers into value-destroying acquisitions and strategies.

The tendency of CEOs to expand their empires regardless of returns on capital, often citing "synergies" that rarely materialize. Buffett specifically warns against CEOs who consistently overpay for acquisitions.

Financial instruments whose value is derived from underlying assets. Buffett has repeatedly called derivatives "weapons of mass destruction" due to their potential to amplify systemic risk and create large, hard-to-measure liabilities.

The proportion of debt relative to equity or total capital. Buffett prefers businesses with modest or no debt, and uses the debt ratio as one signal of a business's financial resilience and management discipline.

Berkshire's reported earnings that include only Berkshire's operational results, excluding the earnings of investees that are accounted for as equity holdings. Buffett introduced this concept to give shareholders a clearer picture of Berkshire's true operating performance.

The risk that a business will suffer permanent damage to its reputation and earnings from adverse publicity. Buffett notes that businesses with strong brands and durable moats are generally resistant to headline risk, while those without are vulnerable.

Buying a broad market index fund rather than attempting to pick individual securities. Buffett has explicitly recommended that most investors should use index funds, reserving active management for investors with genuine expertise.

The concept that a dollar today is worth more than a dollar in the future due to its potential earning capacity. This principle underlies Buffett's use of discounted cash flow (DCF) analysis to calculate intrinsic value.

A valuation method that estimates the present value of an investment based on its expected future cash flows, discounted at an appropriate rate. Buffett uses DCF as a conceptual tool rather than a precise formula.

The value of a business if all assets were sold and liabilities paid off. Graham's approach of buying stocks below liquidation value (the "net-net" strategy) was the foundation of early Buffett Partnership returns.

The advantage of holding stocks for long periods rather than trading frequently. Long-term capital gains are taxed at lower rates, and taxes are deferred until gains are realized — allowing compounding on pre-tax capital.

A business that generates more cash than it needs for reinvestment and pays out the excess to owners. Buffett uses this term to describe businesses with durable competitive advantages that require minimal capital investment to maintain.

Agreements in business sales preventing sellers from competing. Buffett notes these are largely unenforceable in practice, so they should carry no weight in business valuation.

Cost savings or revenue enhancements claimed from combining two businesses. Buffett is deeply skeptical of synergy-driven acquisitions, noting that most promised synergies fail to materialize.

A public offer to buy shares directly from shareholders at a premium price. Buffett has used tender offers strategically (e.g., for See's Candies) and criticized defensive tactics that prevent them.