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ADVISING ALPHAIssue 5 · May 31, 2026

The Sunday Edge · where the market sits, one stock spotlight, one principle.

Editor's note

The toll booth nobody can route around.

very time you tap a card at a coffee shop or click checkout on a website, a tiny fraction of that transaction routes to one of two companies. They do not lend money. They do not take credit risk. They run the railroad that money rides on. Across more than 200 countries and trillions of dollars in annual volume, the network is so deeply embedded in commerce that dislodging it would take an act of national policy.

There is a category of business where the network gets bigger every year, the moat gets wider every year, and the cost of one more transaction approaches zero. Visa is the canonical example in modern finance. Recognizing that some businesses are structurally different from the rest, and sizing accordingly, is most of the job.

Market Normality Indicator

The dials above read the market as it stands right now, against 75 years of history. They are not a forecast and they are not a signal to act. They exist because a measured baseline beats a loud headline.

Across the portfolios

These numbers are live and they will not sit still. The process behind them does. Rebalances happen on the published schedule, positions are sized by rule, and no single scoreboard changes either.

Stock spotlight

VVisa Inc

Visa runs the largest electronic payment network in the world. It does not issue cards. It does not lend money. It does not carry credit risk on the loans underneath.

What it does is operate the rails connecting issuing banks to acquiring banks every time a Visa branded card is used. Roughly 4 billion cards. More than 100 million merchant locations. Trillions of dollars in annual volume. Every swipe touches the network. Every swipe pays Visa a small fee.

The moat is the two sided network effect, sharpened by 60 years of compounding. New issuers join because every merchant accepts the cards. New merchants accept because every consumer carries one. The flywheel strengthens with every participant on either side.

Building a competing network would mean convincing every issuer and every merchant in every country to switch, all at once, against an incumbent that has refined the technology, the dispute resolution, and the fraud detection for half a century. The challengers who tried, from PayPal to Stripe to the wallet apps, ended up riding on Visa's rails instead of replacing them.

The financials follow the structure. Operating margins consistently above 65%. Free cash flow conversion among the best in the S&P 500. Nearly all of it returned to shareholders through buybacks and a growing dividend.

Visa has anchored Market Masters, and the reason is the shift underneath it: cash keeps converting to electronic payment, and outside the United States that conversion still has decades to run.

The risk worth naming: regulators in several jurisdictions keep pressing on interchange fees, and some governments are sponsoring real time payment systems of their own. Consumer spending also dips in recessions, and volume dips with it. We accept those risks because the secular shift has been larger than every cyclical drag in every cycle so far.

A toll booth on the world's spending, with decades of road still to pave. That is the business.

Principle
The most expensive way to be wrong is to keep adding to a position because you cannot accept that you already are.

The sunk cost fallacy, applied to capital

The sunk cost fallacy is the tendency to keep investing in a losing position because you have already invested in it.

The capital you have sunk cannot be recovered by holding. It can only be recovered by the position recovering, and that is a forward looking question. But the mind treats the prior commitment as a reason for the next decision, even when the next decision should depend only on what comes next.

In investing this shows up as adding to a stock that has dropped 50%, not because the thesis improved, but because the new price feels cheap next to the old one. The cheaper entry is real. The original loss is also real. Neither says anything about what the position will be worth in three years. That depends on the business, which is a separate question.

The defense is a fresh eyes test. Evaluate every add as if you held cash and no position existed. Would you buy this business today, at this price, on its forward merits alone?

The right add is one you would make with no history in the name. Anything else is the old decision making the new one for you.

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Educational 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.