Open a brokerage app at any point during the trading day and you’ll see a number that changes every few seconds. That number feels like information. Most of the time, it isn’t. It’s a crowd’s mood, measured to two decimal places. The core of Garrett O’Rourke investing philosophy starts with separating that number from the thing it’s supposedly measuring: a real business, with customers, payroll, competitors and cash flow, none of which changed in the last nine seconds.
That distinction sounds obvious written down. It’s remarkably hard to live by. I’ve watched otherwise level-headed people make decisions about a company they researched for weeks based on a price move that happened over lunch.
What running a business teaches you about owning one
My background isn’t the trading floor. It’s sales organizations, business development and call-center operations — work where you can see, day to day, how a company actually generates revenue and what it costs to keep generating it. Running a business teaches you that results arrive in uneven lumps. You invest in training in March and see the payoff in August. You fix a broken hiring process and the numbers respond two quarters later. Nothing that matters shows up instantly.
Once you’ve lived inside that rhythm, the idea of judging a company by its daily quote starts to look strange. If someone stood in my office and offered a new price for the business every thirty seconds, I wouldn’t call that useful data. I’d call it noise, and I’d find a way to stop hearing it.
Over the years, that operator’s habit has shaped how I approach public markets. A share of stock isn’t a ticker symbol that wiggles. It’s a slice of ownership in an enterprise that has to solve the same problems every business I’ve run has had to solve: find customers, keep them, control costs, survive competitors, and generate more cash than it consumes. When I’m evaluating a company, those are the questions. The price tells me what I’d have to pay to participate. It doesn’t tell me whether I should want to.
Why the daily price gets under your skin
It’s worth asking why so many of us struggle here, because the answer isn’t stupidity. It’s design and psychology working together.
First, the feedback loop is broken. In most parts of life, doing something and getting a result are connected. In the market, you can make an excellent decision and watch it look wrong for a year, or make a careless one and get rewarded immediately. When feedback is that unreliable, people latch onto whatever feedback is available — and what’s available, constantly, is price.
Second, the industry around investing runs on activity. Commentary, alerts, hot takes, breaking headlines. None of it is produced to help you sit still. It’s produced because attention is the product. Silence doesn’t sell.
Third, and most human: a falling price feels like a verdict on your judgment. Nobody enjoys being told they’re wrong, repeatedly, in public, by a number. So people sell to make the discomfort stop, then call it risk management.
That last one deserves a hard look. Volatility and risk are not the same thing. Volatility is the price moving around. Risk is the possibility of permanent loss — the business deteriorates, the debt becomes unmanageable, the moat turns out to be a puddle, or you paid so much that even good performance can’t rescue the outcome. In my experience, people who conflate the two end up managing the wrong problem entirely.
Risk before reward, every time
As an investor, I start with what can go wrong. Not because I’m pessimistic, but because the downside is the part you can’t undo. Upside takes care of itself when the business does well. Downside is what ends the game early.
So before the question of how much this could make, there’s a set of colder questions. What has to be true for this business to still matter in ten years? How much debt is it carrying, and what happens if borrowing gets more expensive? Is the profit real cash or an accounting story? How much am I paying for growth that hasn’t happened yet? And honestly: what am I assuming that I haven’t actually verified?
Numbers matter here, and not in a spreadsheet-theater way. I want to understand a handful of figures well rather than fifty superficially. Where does revenue actually come from. What does it cost to acquire a customer and how long do those customers stay. Margins over several years, not one flattering quarter. That’s the same diligence I’d apply before putting capital into a sales operation, and public companies don’t get a pass on it just because a market is quoting them.
Practical habits that make patience possible
Patience isn’t a personality trait you either have or don’t. It’s the result of a few structural choices that make impatience harder to act on.
- Write your reasoning down before you buy. Three or four sentences on why you own it and what would prove you wrong. When the price drops and your stomach turns, you’ll have a document from a calmer version of yourself.
- Define your sell conditions in advance. Sell when the thesis breaks — the business deteriorates, management behaves badly, the facts change. Not because the chart looks ugly this month.
- Check less often. There’s no rule requiring daily attention. Quarterly reports come quarterly for a reason.
- Keep cash so you’re never forced to sell. Forced sellers get the worst prices in the market. Liquidity is what lets you be patient instead of merely hopeful.
- Stay inside what you understand. I know sales, customer acquisition, operations, people-heavy businesses. I’m more comfortable evaluating a company whose engine I recognize than chasing something I’d only be guessing at.
- Do less. Most portfolios would improve if their owners took fewer actions per year. Activity feels like diligence. Usually it’s just friction and taxes.
Conviction has to be yours
One thing I’ve learned: you cannot hold a position through a hard stretch on borrowed conviction. If you bought because someone confident told you to, you’ll sell the moment someone equally confident tells you the opposite. Independent thinking isn’t about being contrarian for sport. It’s about having done enough of your own work that a headline can’t move you.
That’s the quiet advantage available to an individual. Nobody is grading my quarterly performance. I don’t have to explain a flat year to anyone. A long time horizon is a genuine edge, and most people trade it away for the feeling of doing something.
None of this is individualized financial advice — it’s how I think about my own capital as a private investor, and every person’s situation, timeline and tolerance for loss is different. What I’d offer instead is a principle that has held up across both operating businesses and owning pieces of them: value is built slowly and destroyed quickly. The market will offer you a new price every day for the rest of your life. You are under no obligation to answer.
Photo by Jakub Żerdzicki on Unsplash