The Sunday Edge · 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 away. Quantitative signals decay once enough capital learns them. Even excellent stock picking only gets you the company's return. But one edge cannot be taken from you by any other market participant, and it requires no forecasting skill at all.
It is patience. A 12% compounder held for 25 years turns $10,000 into roughly $170,000. The same compounder held for 10 years produces about $31,000. The other $139,000 is the patience premium, and most investors never collect it. The reason is not intelligence. It is a bias with a name.
The gauges above place today inside 75 years of market history, updated live. Extreme readings are rarer than the headlines suggest and ordinary readings are more common. Nothing here is a buy or sell signal. It is a measure of where the market sits, offered so mood does not masquerade as data.
Whatever the live table above shows when you read this, the same rules were in force when it was written: rebalances on the published calendar, positions sized by formula, and no reaction trades in between. The numbers move. The process is the product.
TSMTaiwan Semiconductor Manufacturing
Taiwan Semiconductor is the most important company most people have never thought about. Apple does not manufacture its own chips. Neither does NVIDIA, AMD, Qualcomm, or Broadcom. They design them and send the designs to TSMC, which builds them in the most advanced fabrication plants on earth.
The company sits at the bottleneck of essentially every leading edge supply chain in consumer electronics and AI infrastructure. Most of the world's advanced chips pass through its hands on the way to becoming products.
The moat has three layers. A leading edge fab costs upwards of $20 billion and takes years to commission. Yields on a new process take more years to master, and TSMC's lead over the next best foundry has widened over the past decade, not narrowed. And customers cannot easily leave: a chip design is physically tuned to the process that builds it.
Capital cost, technical lead, switching cost. Stacked together, it is one of the cleanest moats in any industry we follow.
TSM has been a fixture across our models and is currently held in both Core 20 and Tepper Tactical. The thesis is simple: the AI buildout, the device replacement cycle, and the digitization of everything all route through the same foundry.
The risk worth naming is geopolitical, and it is the largest single point of failure in the global technology industry: the concentration of advanced manufacturing in Taiwan. New fabs in Arizona, Japan, and Germany are underway, but meaningfully spreading that footprint takes years, not quarters. Holding TSM means accepting that tail and sizing for it.
Necessary, scarce, and nearly impossible to replace. Businesses earn that description about once a generation.
“The four most expensive words in investing are: this time it's different.”
Sir John Templeton, read in the direction nobody expects
Templeton's warning is usually quoted at market tops, as a caution against believing a bubble will run forever. It cuts just as deep in the other direction.
Every time a great business compounds for a decade, the same instinct whispers: surely it cannot keep going. Surely the next ten years cannot look like the last ten. So the investor sells, banks the gain, feels briefly smart, and watches the same business compound for another decade without them.
The mechanism is the fear of giving back what you already have, which runs about twice as strong as the desire for what you have not yet earned. Gains feel fragile in the hand. So they get locked in early, and the patience premium goes uncollected.
The defense is to change what triggers a sale. Decide in advance what evidence would end the thesis: a management change, a moat erosion, a capital allocation slide. Write it down.
Then ignore the chart. If none of the thesis ending events have happened, a tired looking chart is not a reason to sell.
Sell on evidence, never on altitude. The compounding belongs to whoever can stand to watch it.
Get the next one in your inbox.
The Sunday Edge lands every Sunday morning around 8:30 AM ET. Free. No urgency, no spam. Measured, useful.
Subscribe freeEducational research from Advising Alpha. We are a publisher under Section 202(a)(11)(D) of the Investment Advisers Act of 1940, not a registered investment adviser. Past performance does not guarantee future results. Full disclaimer at advisingalpha.com/disclaimer.