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How emotion’s destroy investment potential​

Danny Lee Tran

Created on October 30, 2025

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How emotion’s destroy investment potential​

By: Danny Tran, Jakob Brunsell, Wil Grzelak

start

"You're one call away from winning gang"

- DT

Why Investing? ​

We are going to show you common trends so after you (Casey) lose at the casino (blow your entire cadet loan) you’re not completely devastated​ Everyone in this room wants to be successful, investing is one way to achieve that goal

Is investing rational? ​ Or a gamble?​

  • Like winning in the casino, human's get greedy by nature.
  • Lack of patience in the investment market​
  • Economics assumes investors are rational and markets are efficient​

Ways of Knowing ​

Reasoning – Using logic, analysis, and critical thinking to arrive at conclusions.​ ​Ex: I have watched this stock for a few weeks now, tracked its equity, the company news, and now is a good time to buy. ​

Intuition – Knowing something is right due to a gut feeling, which lacks supporting evidence. ​ ​ Ex: I know this call is about to skyrocket ​

Authority – Accepting something as true because an expert says to.​ Ex: I bought 100 shares of AMZN because Jim Cramer on Mad Money said it's about to shoot up.​

Experience – Knowing through past observation, personal experience, or experimentation. ​ ​ I've seen this bullish pattern before on a similar company. I'm about to buy tons. ​

Investing and Reductionism​

  • Investors look for smaller patterns within stocks to help determine if they should invest or not​
  • Many amateurs, especially day traders, use these to make their decisions​
  • Decent in the short run, long holds typically need a more holistic view​
  • Patterns, P/L statements, cash flow statements, and management are all other reductionist pieces that can be used​

Loss Aversion​

  • On Monday, you go up $1,000. Tuesday you lose $800. Which one triggers more emotion?​
  • Prospect theory: Humans are more willing to risk when its for loss
  • Disposition effect – Selling assets that quickly increase in value while holding assets that are losing hoping they come back​

Bias and Heuristics ​

Representativeness Heuristic: ​

  • Thinking a stock or company is due to takeoff in value because it looks or behaves very similar to a premade image of a successful company. ​
  • Ex: "AI-technology" companies performing well in the stock market, regardless of profitability, due to large company success. ​

Confirmation Bias: ​

  • Only seeking information that supports your beliefs and disregarding contradictory facts​
  • Holding on to losing stocks, buying without proper research, and poor diversification​

Gamestop and AMC​

  • In 2021, a Reddit group banded together and started a massive movement on Gamestop and AMC​
  • January 2021 there was a 1,500% increase in two weeks​
  • Stock fluctuated between $17.08 and $483​
  • AMC jumped ~2,500% from late 2020 to June 2021​

Herding ​

  • Large groups of people can drive stock prices up or down​
  • Those outside get FOMO and start throwing money at the stock​
  • It’s a very expensive and risky game of follow the leader​

How to break the Mold​

  • You must detach emotions from your decision-making​
  • Just because it worked for someone else doesn’t mean it will work for you​
  • Seek out people with the opposite perspectives​
  • Collect the relevant data and make an educated decision​

Summary​

  • Rational investing requires detachment, diverse perspectives, and data-driven choices.​
  • Key takeaway: Successful investors think long-term, stay analytical, and don’t let emotion drive the trade.
  • Loss aversion causes investors to hold losers too long and sell winners
too early.​
  • Herding behavior and FOMO push markets into bubbles—like Gamestop and AMC.
  • Emotions distort rational decision-making, leading investors to chase gains or fear losses.​
  • Biases & heuristics (confirmation bias, representativeness, anchoring)
cloud judgment and encourage risky or irrational behavior.

Questions?