Education

No One Starts Investing with a Blank Slate

Before you study another company, study yourself.

By Ian Cassel 4 min read
No One Starts Investing with a Blank Slate

Nobody starts investing with a blank slate. We start with a personality and temperament that's already been wired before you opened your first brokerage account.

Long before you learned what a P/E ratio was, you learned how your father reacted when things fell apart. You learned whether your house felt safe or unpredictable. You learned what happens when you fail, either someone comforted you or laughed at you.

None of that shows up on a resume, but all of it shows up in how we invest.

The investor who panic-sells at the bottom isn't making a market decision. It’s how humans are wired, and lot of times it’s also you replaying an old script from the past. One written in a childhood where uncertainty always meant something bad was coming. 

The investor who naturally holds through a 70% drawdown without blinking is either disciplined or delusional. Somewhere along the way, they learned to avoid their emotions when things didn’t work out, or they had past experiences where patience got rewarded. 

That lesson probably didn't come from a finance textbook. It came from life. Maybe it was in Church where you learned to fill every void with faith. That stubbornness usually came from somewhere, and in stock picking that faith can lead to 100-baggers and epic disasters.  

These personal experiences that shape us are harder to quantify than a discounted cash flow model. But they matter even more.

You can memorize every valuation method and still blow up. You do so not because you didn't understand the business, but because you didn't understand yourself. The best investors aren't the ones with the highest IQ. They're the ones who did the work most people skip. They figured out their own wiring first and created an investment strategy that amplified their strengths and confined their weaknesses.

A few examples: 

You are a naturally trusting individual which makes you susceptible to storytelling CEOs. Now you know not to buy into a story. You set up a rule to only buy into a story when “the story” shows up in the fundamentals of the business. 

You hold winners too long. You’re great at the front-end work of finding monster stocks, but you aren’t as good at keeping track of the business after the crowd finds it. You now know to set up guardrails and selling rules to lock in more gains to cut down on the round trips you’ve experienced in positions. 

You sell winners too early. You grew up in a household where money felt scarce, so booking a 30% gain feels like the responsible thing to do. The problem is you keep clipping what could have been 10-baggers at 1.5x, and you watch from the sidelines as your best ideas compound without you. You now implement a rule that you can only trim a winner when it exceeds a preset portfolio weighting, say 10-15%, or when the fundamentals of the business have measurably deteriorated. Feeling nervous about the size of a gain isn't a valid reason to sell. Only position sizing or a real change in the business is. You also decide you will never completely sell out of a winner. Let some chips on the felt. Take the 3x out of the equity and put it in your bank account but let some ride for the long-term. 

You get too excited when researching new ideas. It results in you buying new positions too early or oversizing your initial positions. After analyzing your trades, you apply two rules. First, you implement a one-week cooling off period before you purchase a new idea to reset your equilibrium and allow euphoria to dissipate. You also implement a maximum 3% initial position size rule. You can buy more later after you gain more genuine conviction.

You aren’t good at cutting losing positions. You hold and hold because losers always look cheap and the company is always saying “just wait another quarter”. So, you implement a mandatory reassessment when a stock is down 30% from your cost basis, or down 30% from your portfolio performance, or down 30% when compared to the industry itself. This forces you to reevaluate the position with fresh eyes, and force you to answer the most important maintenance due diligence question - Would you buy the company at current prices if you didn’t own it? 

You suffer from analysis paralysis. You keep waiting for one more data point, one more quarter, one more piece of confirmation, and by the time you're finally comfortable, the stock has already tripled. You now give yourself permission to be wrong in small size. Once an idea clears your basic checklist, you take a 1% starter position and let owning it force you to keep working. The position is small enough that being early or wrong doesn't hurt you, but real enough that you stay engaged instead of watching from the sidelines forever. 

Before you study another company, study yourself. Your triggers. This isn’t a secondary step to becoming a good investor, it’s the bedrock that everything else is built on. 

Stock Picker

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