The Sunday Brief · where the market sits, one stock spotlight, one principle.
The edge nobody can take from you, and the bias that gives it back.
here are very few durable edges in public-equity investing. Information advantages get arbitraged. Quantitative signals decay as soon as enough capital learns about them. Even the best stock-picking discipline still gets you the company's return; it does not invent return out of nothing. There is, however, one edge that no other market participant can take from you, and it does not require any forecasting skill at all.
It is patience. The willingness to hold a quality compounder through years where the rest of the market has moved on, the chart looks boring, and the immediate gratification is somewhere else. The math says holding a 12% compounder for 25 years turns $10,000 into $170,000. The same 12% compounder held for 10 years turns it into $31,000. The other $139,000 is the patience premium. Most investors do not collect it. The behavioral reason why is what we want to talk about today.
The market is reading normal on three of the four metrics, slightly heated on rolling 12-month returns. Nothing that moves portfolio policy. The reading does not say buy or sell. It says today is not a day demanding a decision.
Cross-portfolio dispersion has narrowed this week. The diversified core portfolios are tracking closely; specialty is doing what specialty does. We are not adjusting positioning ahead of the next rebalance window in August.
TSMTaiwan Semiconductor Manufacturing
Taiwan Semiconductor is the most important company most people have not heard of. It is the contract manufacturer that physically produces a majority of the advanced semiconductor chips designed by Apple, NVIDIA, AMD, Qualcomm, Broadcom, and dozens of other firms. Apple does not make its own chips. Neither does NVIDIA. They design them, send the designs to TSMC, and TSMC builds them in the most advanced fabrication facilities in the world. The company sits at the bottleneck of essentially every leading-edge consumer-electronics and AI-infrastructure supply chain that exists today.
The moat is process technology, capital intensity, and customer relationships built over decades. Building a leading-edge semiconductor fab costs upwards of $20 billion and takes three years to commission. The yields on a new node take years to optimize. TSMC has a multi-year lead over the next-best foundry on the most-advanced nodes, and that lead has actually widened over the past decade rather than compressing. Customers cannot easily switch — Apple's chip designs are physically tuned to TSMC's process. The combination of capital cost, technical lead, and switching costs is one of the cleanest moats in any industry we follow.
The risk we are paying for is geopolitical. The single biggest single-point-of-failure risk in the global tech industry is a disruption to Taiwan's semiconductor manufacturing capacity, and TSMC is the largest concentration of that capacity. Management has been explicit about diversifying production geographically — major fab investments in Arizona, Japan, and Germany are underway — but the timeline to meaningfully de-concentrate the Taiwan footprint is years, not quarters. Anyone holding TSM is implicitly expressing a view that the geopolitical tail does not develop into a binary event.
TSM is held in Tepper Tactical as a platform-compounder position. The thesis is that the AI capex cycle, the consumer-electronics replacement cycle, and the broader digitization of physical infrastructure all run through TSMC's foundry. The growth runway is multi-decade. The geopolitical risk is real and it is why the position is sized in a tactical sleeve rather than a core diversified portfolio.
“The four most expensive words in investing are: this time it's different.”
Sir John Templeton — and adjacent, the sin of selling too early.
Templeton's warning is usually quoted in defense of bubbles ending. It applies just as forcefully in the opposite direction. Every time a great business has compounded for a decade and the chart looks unsustainable, investors say the same thing about the upside: surely it cannot keep going. Surely the next ten years cannot look like the last ten. Surely the multiple has gotten ahead of itself. Selling on those instincts has been one of the most expensive habits in modern investing.
The behavioral mechanism is loss aversion, applied perversely. A position you bought at $50 that is now $200 generates a powerful psychological need to lock in the gain. The fear of giving back what you already have is twice as strong as the desire for what you have not yet earned. So you sell, take the gain, feel briefly smart, and watch the same business compound for another decade without you. The pattern is consistent enough that it has a name: 'the disposition effect,' the empirically observed tendency of investors to sell winners too early and hold losers too long.
The defense is procedural and not motivational. Decide in advance what would make you sell a position — not at what price, but on what evidence. A thesis change. A management change. A capital-allocation deterioration. A moat erosion. Then ignore the price action. If none of the thesis-changing events have happened, do not sell because the chart looks tired. Disposition effect is solved by replacing the price-anchored sell signal with a thesis-anchored one, and by writing the thesis down so the future you who is rich on paper still has to argue with the past you who saw clearly.
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