Where conviction takes root. A curated universe of 235 durable businesses scored against a rigorous rubric. Now including the Foundry Compounders tier for next-generation moat businesses.
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Most investment tools are screeners. They filter by number. They optimise for this quarter.
the Foundry was built from a different conviction: that the best investment framework is an editorial philosophy — a set of values about what makes a business worth owning for decades, not months. The Third Revision adds the Compounders tier for the next generation of durable businesses.
Most investment tools are screeners. They filter by number. They optimise for this quarter. the Foundry was built from a different conviction: that the best investment framework is an editorial philosophy — a set of values about what makes a business worth owning for decades, not months.
the Foundry does not produce buy signals. It does not track momentum. It does not respond to earnings beats or analyst upgrades. It asks one question of every business it evaluates: Is this something we would want to own, at a fair price, for the rest of our lives? Most businesses fail that question. The ones that pass earn a place in the universe.
The framework is inspired by a century of investment wisdom, distilled into a 100-point rubric across four domains — with five mandatory qualitative gates that no amount of financial performance can override.
the Foundry philosophy draws from four investors whose work, taken together, forms a complete framework — margin of safety, permanent ownership, global contrarianism, and macroeconomic awareness.
Graham's foundational insight was that investors are not speculators and should not behave like them. The market exists to serve you, not to instruct you. Price and value are not the same thing. The gap between what a business is genuinely worth and what you pay for it — the margin of safety — is the only reliable protection against the unexpected.
Graham operationalized this through the concept of Mr. Market: an imaginary business partner who offers to buy or sell his share of the business every day, at prices that reflect his mood rather than the underlying value. On fearful days, he offers far too little. On euphoric days, he offers far too much. The intelligent investor's job is simply to take advantage of him — buying when his price is low, ignoring him when it isn't.
the Foundry operationalizes Graham's insight through Domain IV: Valuation Discipline. No business, however exceptional, earns full consideration without a valuation that provides meaningful protection against the unexpected. For the Compounders tier, the margin of safety lives in the moat depth, not the multiple — an explicit acknowledgment of where Graham's framework requires updating for the modern era.
Buffett extended Graham's framework in one essential direction: the holding period. Graham sold when price reached value. Buffett recognized that a truly exceptional business — one with a genuine, widening moat — will keep compounding value indefinitely. Selling it is a mistake, not a triumph.
"A wonderful business at a fair price is better than a fair business at a wonderful price." This single sentence overturns half of Graham's original framework and replaces it with something more powerful: the recognition that quality, once confirmed, deserves a premium — and that the premium is often repaid many times over through decades of compounding.
Buffett himself made this evolution visible. He started as a pure Graham disciple — buying statistical bargains, cigar butts with one last puff. Then came See's Candies in 1972: a brand business at a price Graham would never have paid. Then Coca-Cola in 1988 at 15x earnings. Then Apple, which became Berkshire's largest position. At each step, he was willing to pay more for quality — because quality, sustained over time, is its own margin of safety.
the Foundry's default disposition toward every Active List and Premier holding is permanent ownership. We do not sell because a position has appreciated. We do not rotate because a sector is out of favor. We review annually, monitor monthly, and sell only when the underlying business has fundamentally changed — not when the price has.
Templeton demonstrated two things that most investors of his era refused to believe: that great businesses exist outside the United States, and that the best time to buy them is when everyone else is selling. He purchased shares in 104 companies on margin in 1939 — at the outbreak of World War II, the moment of maximum pessimism — and held them for four years. Nearly all were profitable.
"The time of maximum pessimism is the best time to buy, and the time of maximum optimism is the best time to sell." This contrarian discipline is easier to state than to practice. It requires genuine conviction in your own analysis and genuine indifference to the consensus. It requires being willing to look wrong for extended periods while the thesis plays out.
Templeton's influence on the Foundry is felt in two ways. First, the universe is not restricted to US-listed businesses — the framework applies wherever the moat and management quality meet the standard. Second, and more importantly, Templeton's spirit governs how we think about Compounders in their reinvestment phase: maximum skepticism about a great business aggressively compounding its moat is precisely the kind of pessimism that creates long-term opportunity.
Tepper contributes the layer that pure bottom-up investors sometimes ignore at their peril: the macro regime matters. Interest rates, credit conditions, monetary policy, and the risk appetite of capital markets shape the environment in which even the best businesses operate. A business worth 30x earnings in a zero-rate environment may be worth 18x in a normalized one — not because the business changed, but because the discount rate did.
This is not an argument for market timing. It is an argument for awareness. the Foundry's monthly Investment Committee agenda includes a dedicated macro context review — not to trade around it, but to ensure that the sizing and positioning of the portfolio reflects the current regime. Compounders, which are priced on long-duration cash flows, are particularly sensitive to rate regimes, and their 1–2% position sizing reflects this sensitivity explicitly.
Tepper's most famous moment — buying bank stocks in March 2009 at the depths of the financial crisis, when the consensus was that the system itself might fail — is a perfect synthesis of all four pillars: Graham's margin of safety (catastrophic discount to intrinsic value), Buffett's long-term orientation (permanent businesses temporarily dislocated), Templeton's contrarianism (maximum pessimism), and Tepper's own macro clarity (the Fed will not allow systemic collapse).
Before any business is scored against the rubric, it must pass five mandatory qualitative gates. These are pass/fail — not scored, not weighted, not negotiable. A business that fails any gate is ineligible for any Foundry classification regardless of its financial performance or moat strength.
The gates exist because the rubric, however rigorous, cannot protect against certain fundamental disqualifiers. No amount of financial excellence makes a fraudulent management team acceptable. No moat score compensates for a business that cannot be understood.
Every eligible business is scored across four domains for a maximum composite score of 100 points. The composite determines standard classification. The Compounders tier operates on a sub-rubric — evaluating only Domains I and II — and does not require a full composite.
The moat domain is the most important and the most difficult to score. A genuine competitive moat is a structural feature of the business that allows it to earn returns above its cost of capital for an extended period — ideally indefinitely. It is not a market share advantage, a strong brand campaign, or a good management team. It is a structural feature of the business model itself.
the Foundry recognizes five primary moat types: switching costs (customers are locked in by cost or complexity of switching — Microsoft Office, Salesforce, Oracle); network effects (the product becomes more valuable as more people use it — Visa, Mastercard, Airbnb); cost advantages (structural ability to produce at lower cost than competitors — Costco, McKesson, Union Pacific); intangible assets including brand, patents, and regulatory licenses (Coca-Cola, Moody's, FICO); and efficient scale (markets too small to support a second competitor — waste management utilities, regional pipelines).
Crucially, the moat score evaluates not just the current moat but its trajectory. A narrowing moat, even a deep one, scores lower than a widening one. For Compounders candidates, this criterion is weighted heavily — a moat actively widening through reinvestment earns full credit even when near-term financial results are compressed by that investment.
Financial quality confirms what the moat analysis promises. If a business has a genuinely durable competitive advantage, the financial statements should reflect it — in sustained free cash flow margins, in returns on invested capital that exceed the cost of capital, in a balance sheet that can withstand a downturn without forcing value-destructive decisions.
The central metric is free cash flow: the cash the business generates after maintaining and growing its asset base. FCF is harder to manufacture than earnings — it requires actual cash to leave the business. Sustained high FCF margins over a full economic cycle are the strongest evidence that a moat is real and durable.
Return on invested capital is the secondary metric — the efficiency with which the business converts invested capital into profit. A business that earns 25% ROIC on a growing capital base is compounding intrinsic value at a rate that most investors significantly underestimate over long time horizons. For Compounders, we evaluate incremental ROIC on new investment rather than reported ROIC, which may be temporarily diluted by growth capital expenditure.
Buffett has said he looks for managers who are passionate about their businesses as if they were the only asset their family would ever own. Owner-operators — founders, founder-heirs, or executives with significant personal equity in the business — tend to make different decisions than professional managers optimizing for their compensation. They think in decades, not quarters.
The most important management quality is capital allocation discipline: what does leadership do with the cash the business generates? The five options are reinvestment in the core business, acquisitions, dividends, buybacks, and debt paydown. The best allocators do each in proportion to the available returns. The worst empire-build through acquisitions or return capital at prices that destroy per-share value.
We also evaluate management on transparency and communication. Annual letters that discuss long-term strategy, unit economics, and capital returns are a positive signal. GAAP-heavy earnings calls that lead with adjusted metrics and bury the important disclosures are not. Buffett's Berkshire letters remain the gold standard — every annual letter from every Foundry holding is read against that benchmark.
Graham's margin of safety principle, applied to each business on its own terms. The valuation domain asks a simple question: at the current price, does an investor receive adequate compensation for the risk of being wrong? A good business at an outrageous price is not a good investment. A mediocre business at an extreme discount may be.
the Foundry evaluates valuation through three lenses: FCF yield relative to the risk-free rate and peer group; a discounted cash flow analysis using owner earnings (Buffett's preferred measure, which adds back non-cash charges and deducts maintenance capital expenditure); and relative valuation against the business's own history and against the peer group.
For the Compounders tier, this domain is evaluated but does not determine eligibility. A business can qualify for the Compounders tier with a low Domain IV score — indeed, it should have a low score, because it is in an aggressive reinvestment phase that compresses near-term FCF. The low valuation score is documented transparently and is the primary driver of the 1–2% sizing discipline: we are paying for the future, so we size for optionality rather than conviction.
The Compounders tier was added in the Third Revision to provide a philosophically coherent home for businesses whose moat depth is Premier-caliber but whose current growth reinvestment phase compresses the full rubric score below 70. These are not lesser businesses — in many cases they are the next generation of Premier Holdings in the making.
The key insight is historical: Amazon was a Compounders-tier business for most of the period between 2000 and 2015. It had an extraordinary and widening moat — Prime, AWS, third-party marketplace, advertising. It had financial quality that was clearly excellent at the unit level. But its reported FCF was perpetually compressed by reinvestment, and its valuation was perpetually demanding. An investor who sold because the rubric score was too low missed one of the greatest compounding opportunities in market history.
Buffett made the same evolution across his career. He paid 15x earnings for Coca-Cola in 1988 — expensive by Graham standards. He paid a premium for See's Candies, American Express, Apple. In each case, the moat was so demonstrably deep that the price premium was justified by the certainty of the compounding. The Compounders tier is the Foundry's formal acknowledgment of that lesson.
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A business that consistently earns less than its cost of capital destroys value with every dollar it deploys — regardless of brand strength, moat narrative, or management rhetoric. the Foundry requires a 10-year average ROIC of ≥10% for all non-regulated businesses (≥8% for regulated utilities) to pass Gate VI. Businesses in WATCH range (within 3pts of threshold) require explicit committee justification. FAIL businesses are removed from the universe.
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