Case Studies
Case Studies
Studying actual investment decisions and their outcomes provides invaluable learning unavailable from theory alone. Value investing principles are straightforward in abstract discussion but complex in application. Case studies—examining specific investments where value investors succeeded or failed—reveal how principles translate into practice, what challenges arise in real decisions, and how subtle errors or superior judgment produce dramatically different results.
Successful case studies often share certain characteristics. An investor identified a business trading at substantial discounts to estimated intrinsic value. The investment thesis was clear—why the market was mispricing the opportunity, what could cause value realization, and what risks existed. The investor possessed adequate capital to wait patiently for value recognition. Market conditions eventually shifted, mispricings corrected, and the investment proved highly profitable. Yet success required discipline: maintaining conviction when the thesis was questioned, resisting the urge to trade around the position, and sometimes buying more when valuations became even more attractive.
Failed case studies reveal recurring error patterns. Sometimes investors purchased deeply undervalued stocks based on excellent past earnings that did not sustain. The company was cheap for good reason—its competitive position was eroding, management was poor, or the industry was in secular decline. Other failures emerged from overconfidence in valuation estimates. An investor might purchase a company estimated at 100 million worth of value trading at 60 million, only to discover through subsequent events that the true value was actually 50 million. Still other failures resulted from adequate valuations but inadequate margin of safety or failures of patience—investors exiting positions prematurely before value recognition occurred.
Learning From Success and Failure
The most instructive case studies examine near-identical situations producing opposite outcomes. Two investors might purchase companies trading at similar valuations with similar business characteristics. One proves highly profitable while the other substantially underperforms or loses value. By examining the differences—in holding period, additional analysis, capital allocation, or ability to wait—readers learn which decisions matter most and which prove peripheral.
Case studies also illustrate how value investing philosophy requires flexibility within consistency. A value investor should not blindly maintain positions simply because the thesis was initially sound if new information fundamentally alters the analysis. A business whose competitive advantage is destroyed or whose industry faces unrecoverable disruption may warrant exit even at losses. Conversely, temporary weakness in business performance—a poor quarter, a customer loss, a management change—may create opportunity to add to positions if the long-term thesis remains sound.
The Role of Luck and Timing
Case study analysis also reveals that value investment outcomes depend on factors beyond analytical skill. Lucky timing—purchasing just before market sentiment shifted, before technological advantages became apparent, before management changes improved operations—enhanced returns. Unlucky timing—purchasing before unexpected deterioration, before industrial disruption accelerated, before regulatory change—impaired returns. The intelligent investor acknowledges these factors, constructing portfolios and decision rules that succeed across reasonable scenarios, not only in best-case outcomes.
Articles in this chapter
📄️ Buffett's American Express Bet
How Warren Buffett spotted opportunity in American Express after the 1963 salad oil scandal destroyed investor confidence. A masterclass in separating temporary corporate crises from fundamental business value.
📄️ The Washington Post Monopoly
Buffett's 1973 investment in the Washington Post during Watergate, newspaper industry decline, and securities law violations. A masterclass in identifying local monopolies and franchise value in unpopular industries.
📄️ Capital Cities/ABC Merger
Buffett's investment in Capital Cities Communications and its bold 1985 acquisition of American Broadcasting Company. A case study in operational excellence, favorable market conditions, and the power of visionary deal-making.
📄️ GEICO: From Near-Death to Cash Cow
Buffett's 1976 rescue investment in Government Employees Insurance Company, which was facing insolvency due to underwriting losses. How a superior business model, competent management, and patient capital transformed a company on the brink of collapse into Berkshire's most valuable franchise.
📄️ Wells Fargo: When a Moat Cracks
Buffett's long-term Wells Fargo investment and subsequent exit as the bank's culture collapsed. A cautionary tale about how strong franchises can be permanently damaged by management failures and how to recognize when a moat truly cracks.
📄️ Apple: Transition from Tech to Consumer Brand
Buffett's evolution from Apple skeptic to major investor (2016-present). How Apple successfully evolved from a computer company into a consumer brand ecosystem with powerful pricing power and switching costs. A case study in recognizing emerging moats.
📄️ IBM: Buffett's High-Profile Tech Trap
Buffett's 2011 investment in IBM and subsequent exit in 2017 after losing roughly $2 billion. How even the most careful investor can misidentify secular decline in technology companies and mistake a cheap stock for a value opportunity.
📄️ Dexter Shoe: The Worst Deal Ever Made
Buffett's 1993 acquisition of Dexter Shoe for $433 million and subsequent near-total loss. How even disciplined investors can make catastrophic mistakes by overpaying for businesses with deteriorating competitive positions and changing consumer preferences.
📄️ Kraft Heinz: Overpaying and Underinvesting
How Berkshire's largest acquisition became a cautionary tale about overpaying for brands and destroying value through underinvestment in innovation.
📄️ BYD: Munger's Brilliant Venture Bet
How Charlie Munger's investment in BYD—made against conventional Wall Street wisdom—became one of the highest-returning value bets ever made.
📄️ Seth Klarman's Approach in Action
How Seth Klarman's Baupost Group applied margin of safety principles to achieve extraordinary returns through distressed debt and value investing.
📄️ Greenblatt's Marriott Spin-Off Masterpiece
How Joel Greenblatt's understanding of corporate spin-offs unlocked extraordinary returns from Marriott's separation of its real estate from operations.
📄️ Ackman's GGP Bankruptcy Home Run
How Bill Ackman's investment in General Growth Properties during its bankruptcy became his greatest trade—and what it reveals about distressed value investing.
📄️ Ackman's Valeant Disaster
How Bill Ackman's massive bet on Valeant Pharmaceuticals became his largest investment loss, revealing the dangers of overpaying for businesses with accounting red flags.
📄️ Michael Burry's GameStop Value Play
How Michael Burry's early investment in GameStop represented classic deep value principles, despite the later meme-stock phenomenon that obscured the original thesis.
📄️ Carl Icahn: Activism and TWA
How Carl Icahn's hostile takeover and restructuring of Trans World Airlines exemplified the power and limits of aggressive activist investing in cyclical businesses.