The bedrock of the portfolio. Proven businesses with durable competitive advantages, exceptional returns on capital, and records of compounding across decades and cycles. These are held for the very long term — measured in years and decades, not months.
What defines Core Quality? Businesses with unassailable competitive positions — monopolies of technology, IP, or distribution — with demonstrated track records of high returns on invested capital across multiple cycles. Held at meaningful position sizes. Sold only when the thesis is broken, not when the price moves.
These are the rarest type of business — genuine technological monopolies where no viable competitor exists for the specific capability they provide. ASML has 100% market share in EUV lithography. CSU occupies niches so narrow that customer switching is effectively impossible.
ASML
ASML Holding NV
🇳🇱
Veldhoven, Netherlands · NASDAQ / Euronext
EUV Lithography
The sole manufacturer of EUV lithography machines — 100% market share in the equipment that makes every leading-edge semiconductor on earth
ASML holds one of the most extraordinary competitive positions in global industry: it is the only company that makes extreme ultraviolet lithography machines, which are required to manufacture chips at the most advanced process nodes (sub-7nm). TSMC, Samsung, Intel, and SK Hynix all depend entirely on ASML for their advanced fabs. No other supplier — Nikon or Canon included — makes production-ready EUV tools. This monopoly was built over more than 20 years and €10 billion+ in R&D investment, with 16,000+ active patents protecting core optics, lasers, and software. Full-year 2025 net sales were €32.7 billion (+15.6% YoY), with a 52.8% gross margin and net income of €9.6 billion. ASML's 2030 revenue opportunity is estimated at €44–60 billion. The next frontier is High-NA EUV, which enables even smaller chip features — and for which ASML is again the only supplier.
Watch These
EUV Systems ShippedAnnual count — capacity ceiling signal
Order Backlog€38.8bn end-2025 — 12–18 month visibility
China Export ControlsKey geopolitical risk — monitor policy
EUV lithography works by firing 13.5nm wavelength light at silicon wafers. Generating this light requires a laser firing 50,000 times per second at tiny tin droplets — creating plasma that emits EUV light. The mirror systems guiding this light must be the smoothest surfaces ever manufactured (surface roughness measured in angstroms). Only Carl Zeiss makes these mirrors; only Cymer (ASML-owned) makes the light source. The entire supply chain converges on ASML as the sole integrator. This cannot be replicated on any reasonable timeline — the accumulated knowledge is irreplaceable.
Conviction: Maximum
CSU
Constellation Software
🇨🇦
Toronto, Canada · TSX
VMS Serial Acquirer
The greatest capital allocation machine in software — acquiring mission-critical niche software businesses at scale for 30 years, now under new leadership after Mark Leonard's health-related resignation
Constellation Software is the archetype of the vertical market software serial acquirer. Since 1995, it has acquired hundreds of niche software businesses serving local governments, utilities, healthcare systems, and specialist industries — software so deeply embedded in customer operations that switching is effectively impossible. Revenue in 2024 was $10 billion USD, and the company employs 64,000 people across 40+ countries. The model is simple and enduring: acquire sticky niche software at disciplined multiples, retain management, improve operations, reinvest cash flow, repeat. The key development in 2025: founder Mark Leonard resigned as President for health reasons. Mark Miller, who has worked with Constellation for 30 years and co-founded Trapeze Group (Constellation's first acquisition in 1995), has been appointed President. Leonard remains on the Board as an adviser and has announced he will not stand for re-election, stepping back fully in May 2026. The institutional knowledge, methodology, and culture are deeply embedded — this is not a one-man business. But the transition does warrant monitoring.
Watch These
Organic Revenue GrowthEx-M&A — underlying health signal
Acquisition ROICCapital allocation quality — the whole thesis
Leadership ContinuityMark Miller's execution and capital discipline
Mark Leonard is one of the greatest capital allocators in software history — his annual letters are studied like Buffett's. His departure creates genuine uncertainty. However, this was a planned and managed transition: Miller has 30 years at Constellation and co-founded the company's first acquisition. The culture, frameworks, and institutional methodology were designed to be transferable. Watch Miller's first capital allocation decisions closely — the PEMS (Permanent Engaged Minority Shareholder) strategy he is advancing is Leonard's own playbook applied to minority stakes alongside acquisitions.
Conviction: High — leadership transition watch
02
Financial Quality
Insurance compounders · Global conglomerates · Payment infrastructure
BRK.B
Berkshire Hathaway
🇺🇸
Omaha, Nebraska · NYSE
Diversified Conglomerate
The world's most studied capital allocation machine — now entering a new era under Greg Abel as Warren Buffett steps back from 60 years as CEO
Berkshire Hathaway is a diversified conglomerate built over six decades by Warren Buffett into one of the most valuable companies on earth, with $371 billion in 2025 revenue and a $1.1 trillion market capitalisation. Its core strength is the insurance float: GEICO, General Re, and other insurance subsidiaries collect premiums upfront and pay claims later, providing Berkshire with a structural pool of investable capital at effectively zero or negative cost. This float funds equity investments (Apple, American Express, Bank of America, Coca-Cola) and wholly owned operating businesses (BNSF Railway, Berkshire Hathaway Energy, See's Candies, Pilot Travel Centers). At year-end 2025, Berkshire held a record ~$380 billion in cash — reflecting Buffett's view that valuations are stretched. Greg Abel became CEO on January 1, 2026. Buffett remains Chairman. Abel has pledged to maintain the fortress balance sheet and long-term capital allocation culture. Full-year 2025 operating earnings were $44.5 billion, slightly below 2024's $47.4 billion due to weaker insurance underwriting.
Cash Deployment$380bn+ cash — watch for major acquisitions
Abel Capital DecisionsFirst major moves as CEO — sets the tone
Buffett's departure as CEO is the most significant transition in the history of American capitalism. Abel is deeply trusted — he ran Berkshire Hathaway Energy for years and has been Vice Chairman since 2018. But no one replaces Buffett's network, reputation, and deal-making access. The $380bn cash hoard is the key watch item: Buffett refused to deploy it at current valuations. Will Abel be more aggressive? His first letter maintained disciplined language, but actions will speak louder. Berkshire is held as a quality anchor — financial fortress, diversified income, and optionality on a major acquisition.
Conviction: High — succession transition
KNSL
Kinsale Capital Group
🇺🇸
Richmond, Virginia · NYSE
Specialty Insurance
The best underwriter in specialty insurance — a 71.7% combined ratio, 24% ROE, and proprietary technology that sustains an 8-point expense advantage over peers
Kinsale Capital focuses exclusively on the Excess and Surplus (E&S) lines market — insurance for businesses that are too unusual, complex, or risky for standard carriers to underwrite. Think specialty liability for cannabis companies, unusual construction risks, or exotic marine vessels. By focusing on this hard-to-place niche, Kinsale avoids the commoditised competition of standard insurance and can charge higher premiums for its expertise. The business model is exceptional: in Q4 2025, Kinsale reported a combined ratio of 71.7% — meaning it paid out only 71.7 cents for every dollar of premium collected, with the rest being underwriting profit before even counting investment income. This is extraordinary in insurance. The edge comes from proprietary technology: Kinsale built its own underwriting and claims software in-house, giving it an expense ratio approximately 8 percentage points lower than competitors. Full-year 2025 net income was $503.6 million, with EPS of $21.65. Book value per share grew 32.9% year-on-year to $84.66.
Watch These
Combined RatioBelow 80% historically — the quality metric
Premium GrowthGross written premium — E&S market cycle
Return on Equity24% annualised — must sustain above 20%
The E&S market is inherently harder to commoditise than standard insurance because each risk requires genuine underwriting judgment. Kinsale's technology advantage means its underwriters can evaluate more submissions faster than competitors, creating a volume advantage while maintaining pricing discipline. The risk: when insurance market cycles soften (as is beginning in commercial property), Kinsale's growth moderates. Premium growth slowed to 5% in some recent quarters. The quality of earnings — combined ratio — remains exceptional even as the cycle softens.
Conviction: Maximum
ADYEN
Adyen NV New
🇳🇱
Amsterdam, Netherlands · Euronext
Payment Infrastructure
Europe's payment infrastructure champion — processing €1.4 trillion annually with a single unified platform, 21% revenue growth in 2025, and 53% EBITDA margins
Adyen provides end-to-end payment processing infrastructure for global enterprises — a single platform handling card acquiring, point-of-sale, online payments, and embedded financial products across 200+ countries. Customers include Netflix, Spotify, McDonald's, eBay, and Microsoft. The single-platform architecture is the core differentiator: unlike legacy processors that use disconnected systems, Adyen processes every transaction type through one unified stack — giving merchants a complete view of payments data across channels and geographies. This creates deep switching costs as customers integrate Adyen into their entire commerce infrastructure. Full-year 2025 net revenue was €2.36 billion (+21% at constant currency), with EBITDA margins of 53% — among the best in European technology. Adyen guides for 20–22% revenue growth in 2026 and EBITDA margins exceeding 55% by 2028. Shares fell 15% on the 2025 results due to slightly below-expectation transaction volumes, creating the entry opportunity at which the position was initiated.
Watch These
Processed Volume€1.4tn FY2025 — acceleration signal
Net Revenue Growth21% in 2025 — target 20–22% for 2026
EBITDA Margin53% in 2025 — path to 55%+ by 2028
Adyen is the payment infrastructure of choice for the world's most demanding enterprises. Once embedded into a global merchant's payment stack — handling dozens of currencies, markets, and payment methods through a single integration — switching costs are substantial. The business is capital-light, highly scalable, and generates exceptional margins. It has been volatile (famously falling 40%+ in 2023 as growth temporarily slowed) and requires tolerance for multiple compression when sentiment deteriorates. Initiated at the post-results entry point in early 2026.
Conviction: High — new position, building
"The best business is one where you can raise prices every year without losing customers."
Quality businesses don't just hold their position — they extend it. Every year of an ASML installed base, every year of Constellation's embedded software, every year of Games Workshop's Warhammer lore makes it harder for a competitor to displace them. The moat compounds with time. This is the foundational principle of the quality tier.
03
Consumer & IP Quality
Warhammer IP · Luxury goods · LatAm e-commerce ecosystem
GAW
Games Workshop Group
🇬🇧
Nottingham, UK · LSE
Warhammer IP
The 42-year custodian of the Warhammer universe — a vertically integrated IP machine with £617m revenue, record profits, and an Amazon TV deal in development with Henry Cavill
Games Workshop designs, manufactures, and sells Warhammer miniature wargames from its Nottingham headquarters and 570 global stores. The business model is one of the most elegant in consumer products: it controls the entire value chain from IP creation to plastic miniature production to retail — capturing every margin layer. The Warhammer 40,000 and Age of Sigmar universes are among the richest, deepest fictional settings in popular culture, with 40+ years of accumulated lore. The moat is cultural: it takes decades to build a fan community of this depth and commitment. FY2025 (year to June 2025) revenue was £617.5 million with pre-tax profit of £262.8 million — a 29.5% increase. Licensing revenue hit a record £52.5 million, driven by the Space Marine 2 video game (7 million copies sold) and the Amazon MGM Studios deal for Warhammer 40,000 TV series and films, in development with Henry Cavill. FY2026 (year to June 2026) core revenue is tracking to £625m+, though licensing revenue is expected lower as FY2025 had unusually strong game releases.
Watch These
Core Revenue GrowthMiniature sales — underlying franchise health
Amazon TV ProgressRelease milestone — major brand expansion
Licensing PipelineNew game/media deals — FY25 may not repeat
The Amazon deal is the most significant optionality event in GAW's history. A successful Warhammer 40,000 TV series or film could do for the brand what Game of Thrones did for fantasy — introducing Warhammer to a global mainstream audience that has never encountered a miniature. This could materially expand the hobby's addressable market. The deal is with Amazon MGM Studios and Henry Cavill (a known Warhammer fan, adding authentic enthusiasm). GAW's CEO has stated delivery timelines are beyond their control — this is a long-dated option, not a near-term catalyst.
Conviction: Maximum
MC
LVMH Moët Hennessy Louis Vuitton
🇫🇷
Paris, France · Euronext Paris
Luxury Goods
The world's largest luxury group — 75+ maisons across fashion, wines, jewellery, and beauty — in a cyclical reset after a decade of extraordinary growth
LVMH is the architect of the modern luxury industry. Its portfolio of 75+ maisons — Louis Vuitton, Dior, Moët & Chandon, Hennessy, Tiffany, Bulgari, Sephora — spans the full spectrum of luxury from entry-level aspiration to ultra-high-net-worth indulgence. The group is structurally advantaged: its brands carry centuries of heritage that cannot be replicated, its distribution is highly selective, and luxury goods have demonstrated a long-run ability to raise prices faster than inflation without losing demand. FY2025 was a difficult year: revenue declined 5% to €80.8 billion (1% organic decline) and profit from recurring operations fell 9% to €17.8 billion, reflecting slower Chinese consumer demand, currency headwinds, and normalisation post the post-COVID luxury boom. The second half showed 1% organic growth — a stabilisation signal. LVMH remains the benchmark quality compounder for the luxury sector, with free cash flow from operations of €11.3 billion in 2025 (up 8%).
Watch These
Organic Revenue GrowthQuarterly — return to positive is the signal
China DemandKey market for Fashion & Leather recovery
Operating Margin22% in 2025 — watch for stabilisation
The central question for LVMH is whether 2023–2025 represents a cyclical luxury slowdown (the historical norm — luxury has always had 2–3 year reset periods after booms) or structural demand erosion (Chinese middle class retrenchment, aspirational consumer fatigue). Morningstar and most long-term analysts forecast a return to ~5% annual growth over the next decade — conservative versus LVMH's historical rate of 10%. New creative directors at Dior and Loewe, continued Sephora growth, and an improving China macro could catalyse a recovery. This is held as a quality compounder in cyclical reset, not a structural decline.
Conviction: High — cyclical reset, not structural
MELI
MercadoLibre Inc.
🇦🇷
Montevideo, Uruguay · NASDAQ
LatAm E-Commerce / Fintech
The Amazon and PayPal of Latin America combined — 39% revenue growth in 2025 to $28bn, serving 121 million unique buyers across 18 countries
MercadoLibre operates the largest e-commerce and fintech ecosystem in Latin America. Mercado Libre (the marketplace) dominates online retail across Brazil, Mexico, Argentina, Colombia, and Chile. Mercado Pago (the fintech) has grown into a full digital bank — credit cards, consumer lending, merchant acquiring, and a digital wallet used by 78 million monthly active fintech users. The two businesses are deeply intertwined: Mercado Pago's credit capabilities allow buyers to finance purchases on Mercado Libre, driving GMV growth; Mercado Libre's transaction data informs Mercado Pago's credit decisions, improving underwriting. Full-year 2025 revenue grew 39% to approximately $28 billion, with Q4 2025 revenue up 45% to $8.8 billion. GMV crossed $65 billion for the year. Total Payment Volume reached $277 billion — 41% growth. Latin America has 650+ million people, rapidly expanding smartphone penetration, and some of the largest informal economies in the world shifting to digital commerce.
Watch These
GMV Growth$65bn FY2025 — marketplace health
Fintech MAUs78m in Q4 2025 — digital banking expansion
Credit QualityNIMAL (net interest margin) — 23% in 2025
Latin America is underbanked and under-digitised relative to developed markets. Less than 50% of Latin Americans have a bank account; credit card penetration is low; cash remains dominant in many markets. MELI is building the financial infrastructure to serve this population — at significant scale and with years of runway. Currency risk (particularly in Argentina, where hyperinflation distorts reported revenue) is real and chronic, but Brazil and Mexico (which drive most of the value) are more stable. MELI's position in LatAm is more dominant than Amazon's in North America.
Conviction: Maximum
04
Healthcare Quality
CRO services · GLP-1 pioneer under pressure · iGaming infrastructure
MEDP
Medpace Holdings
🇺🇸
Cincinnati, Ohio · NASDAQ
Clinical Research (CRO)
The highest-quality clinical contract research organisation — owner-operated, scientifically disciplined, accelerating to 32% revenue growth in Q4 2025
Medpace manages Phase I–IV clinical trials for biotech, pharmaceutical, and medical device companies — the testing required to gain regulatory approval before a drug can come to market. CROs are the contract manufacturers of the clinical trial industry: they provide the scientific expertise, regulatory knowledge, investigator networks, and operational infrastructure that allows drug developers to run trials without building their own capabilities. Medpace is differentiated by its scientific rigour and therapeutic depth — it focuses on complex, specialty areas (oncology, cardiology, metabolic disease, endocrinology) where the science is hard and generic CROs struggle. The company is founder-controlled, with CEO August Troendle owning a substantial stake and maintaining an owner-operator culture that prizes long-term quality over short-term growth. Q4 2025 revenue grew 32% to $708.5 million; full-year 2025 was approximately $2.5 billion. Backlog reached $3.03 billion at year-end, with net new business awards of $736.6 million in Q4 — a 39% increase suggesting strong pipeline momentum.
Watch These
Net New AwardsQ4 2025: $736.6m — forward revenue signal
Book-to-Bill RatioMust stay above 1.0× to grow backlog
CROs run clinical trials on behalf of biotech companies that lack the infrastructure to run them internally. Revenue is largely project-based, with long lead times between contract signing and revenue recognition — creating visibility through backlog. Medpace's differentiation: it focuses on smaller biotech clients (where relationships are stickier and competition from mega-CROs like ICON and IQVIA is less intense) and on scientifically complex therapeutic areas. The risk is backlog conversion — if biotech funding tightens and trial starts slow, backlog-to-revenue conversion deteriorates. Q1 2025's soft book-to-bill of 0.90× reflected this; the subsequent acceleration to 1.20× in Q3 and 1.04× in Q4 suggests recovery.
Conviction: Maximum
NOV
Novo Nordisk A/S Monitor
🇩🇰
Bagsværd, Denmark · Euronext (ADR: NVO)
GLP-1 Pharmaceuticals
The GLP-1 pioneer facing a difficult 2026 — 5–13% adjusted sales decline guided, CagriSema failed vs tirzepatide, stock down ~74% from 2024 peak
Novo Nordisk invented the modern GLP-1 drug class with Ozempic and Wegovy — drugs that have transformed treatment of diabetes and obesity and generated billions in annual revenue. However, 2025 and 2026 have brought compounding headwinds. Sales in 2025 grew just 10% (well below prior years), with guidance cuts throughout the year citing slower US market expansion, competition, and compounded GLP-1 drugs reducing branded uptake. For 2026, Novo guides for adjusted sales decline of 5–13% due to the "Most Favoured Nations" pricing agreement with US Medicare, semaglutide patent expiry in select international markets, and continued competitive pressure from Eli Lilly's tirzepatide. The critical clinical blow: CagriSema (the next-generation GLP-1 that was expected to re-establish superiority over tirzepatide) failed to demonstrate non-inferiority on weight loss vs tirzepatide in a head-to-head trial in February 2026 — sending shares down 16% in a single session. A new CEO (Maziar Doustdar) took over in August 2025 amid the turmoil.
Watch These
2026 Sales TrajectoryIs the -5 to -13% floor or a starting point?
Oral SemaglutideWegovy pill launch — could expand addressable market
CagriSema Phase 3Can it demonstrate value despite head-to-head loss?
Novo Nordisk is a quality business facing compounding headwinds. The bull case: oral semaglutide (Wegovy pill) expands the addressable market dramatically to patients who avoid injections; the stock is deeply discounted relative to historical multiples; the GLP-1 market remains enormous even with intensifying competition; CagriSema still has value propositions beyond the failed head-to-head comparison. The bear case: Eli Lilly has taken a clear lead across clinical efficacy, pipeline breadth, and oral GLP-1 development. The 2026 sales decline guidance crystallises a near-term deterioration that the market is still digesting.
Conviction: Low — significant headwinds
EVO
Evolution AB
🇸🇪
Stockholm, Sweden · Nasdaq Stockholm (E3G1)
Live Casino B2B
The undisputed monopoly in live dealer casino — providing the infrastructure behind nearly every online live casino game on earth, with 60%+ EBITDA margins
Evolution provides the live dealer infrastructure for the online gambling industry — the studios, cameras, dealers, and technology that power live blackjack, roulette, baccarat, and game show products on virtually every major gambling platform globally. It is the B2B supplier: casinos (William Hill, DraftKings, BetMGM, Unibet) license Evolution's content and technology rather than building their own. Evolution's 60%+ EBITDA margins reflect the extraordinary economics of a business that invested billions building studio infrastructure and then licenses it to hundreds of customers with minimal marginal cost per additional licensee. The position in live casino is near-monopoly: Evolution has a scale advantage in studios (Malta, Latvia, Georgia, Philippines, Canada), regulatory approval advantage across dozens of jurisdictions, and a product portfolio (Lightning Roulette, Crazy Time) that has become industry-standard entertainment. Revenue growth has slowed from its hyper-growth phase, reflecting market maturation in established geographies, but the US market remains an underpenetrated long-term opportunity as more states legalise online gambling.
Watch These
Revenue GrowthGrowth has moderated — US expansion is the key
EBITDA MarginTarget 60%+ — cost leverage on fixed studios
US State LicencesRegulatory progress in new states — TAM expansion
Evolution operates in a highly regulated, politically sensitive industry. Changes in gambling regulation — whether additional restrictions, licence requirements, or taxation — in major markets (UK, Sweden, US) can materially impact revenue. The company has faced regulatory scrutiny in some markets regarding its operator customers' responsible gambling practices. These risks are manageable but real. Evolution also operates studios in jurisdictions (Georgia, Ukraine) that carry geopolitical exposure. The US opportunity is the long-term growth catalyst: as Pennsylvania, New Jersey, Michigan, Connecticut, and other states legalise online live casino, Evolution is typically the infrastructure provider.
Grocery retail operates differently to most quality compounders — lower margins, higher volumes, and competition driven by scale, location, and format rather than technology or IP. The key question is always whether a grocery operator has a durable format advantage in its chosen market.
DNP
Dino Polska SA
🇵🇱
Krotoszyn, Poland · WSE
Polish Discount Grocery
🛒
A fast-expanding Polish discount grocery chain targeting smaller towns and villages — differentiated by proximity and fresh meat counters, but facing slowing growth and intensifying competition
Dino Polska operates a network of small-format discount supermarkets across Poland, deliberately targeting towns and villages with populations of 2,000–20,000 that larger chains (Biedronka, Lidl) have historically under-served. The format is distinctive: smaller footprint than a conventional supermarket, a fresh meat counter (unusual for the discount segment), and proximity to residential areas that reduces travel time for daily shopping. The company has opened hundreds of new stores annually since listing in 2017, growing from around 500 to over 2,700 stores by 2025. Poland is a structurally attractive grocery market — a large population, growing disposable incomes, and significant ongoing shift from traditional local shops to modern grocery formats. However, growth has decelerated materially from the exceptional rates of the 2020–2023 period. Same-store sales growth has slowed, margin pressure has increased from wage inflation and energy costs, and competition from Biedronka (Jeronimo Martins) and Lidl has intensified. Revenue in 2025 was approximately PLN 26 billion, though profit growth has been more subdued.
New Store OpeningsAnnual count — expansion pace signal
EBITDA MarginEfficiency under competitive pressure
Biedronka is Poland's largest grocery chain with over 3,600 stores and Jeronimo Martins' full operational backing. Lidl has been aggressively expanding in Poland and upgrading store quality. Both have the scale to respond to Dino's small-town strategy. Dino's original edge — being early to underserved markets — is eroding as larger competitors follow into smaller geographies. The company's fresh meat counter is a genuine differentiator that drives customer loyalty but also adds operational complexity and cost. Investors should watch whether the new-store unit economics remain attractive as the most accessible locations are filled and Dino must move to harder-to-serve or more competitive markets.
Conviction: Mixed — growth deceleration vs long-run potential
Chapter IV Summary · Core Quality at a Glance
Ticker
Company
Country
The Quality Thesis
Conviction
ASML
ASML Holding
🇳🇱 Netherlands
100% EUV monopoly — sole supplier of advanced chip-making equipment globally
●●●●●
CSU
Constellation Software
🇨🇦 Canada
VMS serial acquirer — $10bn revenue, 30yr track record, Mark Miller transition
●●●●○
BRK.B
Berkshire Hathaway
🇺🇸 USA
Diversified quality conglomerate — $380bn cash, Greg Abel era begins Jan 2026