The Case for Investment Discipline in a Speculative Market

There is a version of investment management that chases whatever is working. It follows momentum, tilts toward the most popular themes, and adjusts when sentiment shifts. It can feel responsive and dynamic. Over short periods, it can even look smart.

We don’t practice that version. And in a market environment like this one, where a narrow handful of AI-linked stocks have driven almost all of the index’s gains, we think it’s worth explaining exactly why.

Every investment decision at Summitry begins the same way: with an assessment of what we believe a business is fundamentally worth. Not what the market says it’s worth today, not what a compelling narrative suggests it could be worth someday, but what the underlying earnings power, competitive position, and long-term cash flows support.

We call this underwriting, a deliberate word choice. Just as an insurer evaluates risk carefully before writing a policy, we evaluate a business carefully before putting your capital behind it. That means reading earnings transcripts, speaking with competitors and industry contacts, stress-testing our assumptions, and arriving at a view of intrinsic value that we’re prepared to defend.

When a stock trades at a discount to that assessed value, and the business is high-quality, managed by capable leaders, and growing durably, we buy. When it trades above that value, we trim or sell. It is not complicated. The difficulty is in the execution: resisting the pull of momentum, absorbing short-term underperformance without flinching, and maintaining the conviction to hold when a position isn’t working yet.

One of the most common questions we receive is some version of: “This position has been disappointing: what are you doing about it?” It’s a fair question, and the honest answer is that we’re doing exactly what we should: continuing to assess whether our original thesis remains intact.

A declining stock price is a signal, not a verdict. Our job is to understand what’s driving the move and whether it changes what we believe the business is worth. If the answer is no, if the fundamentals are tracking as expected, the competitive position is intact, and the valuation has actually become more attractive, then a falling price is not a reason to sell. It may be a reason to buy more.

If the answer is yes, if something has genuinely broken in the business, the management team, or the competitive dynamics we underwrote, then we act. We are not in the business of riding deteriorating situations out of stubbornness. We aim to have both the conviction to hold when we’re right and the humility to admit when we’re wrong.

Some investors try to impose structure on this process through tools like stop-loss orders, automatic triggers that sell a position if it falls to a specified price. The appeal is understandable: it feels like protection. In our experience, it is the opposite.

We experimented with these tools with clients in the past. What we found was that they consistently produced the wrong action at the wrong time. A stop-loss order doesn’t know whether a stock fell because the business deteriorated or because the market overreacted. It fires regardless. In doing so, it executes against your own conviction, the same conviction you built through research, analysis, and careful assessment of intrinsic value.

There’s also a compounding problem: after the stop-loss sells, you still need to make a second decision about what to do with the proceeds. To generate the intended benefit, you have to be right twice: you have to sell at the right price, and then you have to either repurchase at a better price or deploy the capital somewhere that earns a superior return. Achieving that consistently is extraordinarily difficult.

Warren Buffett has two famous rules of investing. Rule one: never lose money. Rule two: never forget rule one.

The first rule is often misread as “avoid all losses.” That’s not possible. What it means is to focus relentlessly on the downside, to consider not just what can go right, but what can go wrong, and to make sure the price you pay accounts for that risk. The second rule is simply a reminder that this discipline must be constant, not something you invoke selectively.

We carry both rules into every investment decision we make on your behalf. In an environment where the market has rewarded speculation and concentration, maintaining that discipline creates short-term friction. We accept that friction because we believe, deeply and from long experience, that it is precisely what protects and compounds wealth over a full cycle.

Markets become emotional. Our job is to stay grounded.