The Heart on Days You Can't Let Go: How to Turn Your 'Masterpiece' Back into a 'Stock' [Investing × Psychology]
“Should I sell, or should I still hold?”
I have paused my hand many times in front of the screen.
This is because ”my masterpiece” there was a stock I considered to be.
Here, a masterpiece refers to a stock that, after I researched and bought it myself, saw its price rise steadily and became a driver of assets within my portfolio refers to.
As unrealized gains grew, I would be swayed by daily news, and on weak days, I would whisper to myself, 'It's okay to rest today.' ...Before I knew it, I was looking at 'memories' rather than the stock price.
“Masterpieces” eventually receive “special treatment”
The upward trend slowed, it broke below the moving average, and the earnings were lackluster.
Even so, I couldn't press the sell button. The reason is simple.
“Because, it's my masterpiece.”
In my heart, this kind of change is happening.
My possessions look better than they actually are (Endowment Effect)
Feeling as if that stock = proof of my own judgment and not wanting to deny it
Reading news and price movements in the second person rather than objectively ('You're in a bad mood today')
Once this “special treatment” begins, its weight is determined by emotion rather than numbers.
What is scary is that I think I am being calm myself. It is difficult to notice the distortion.
My failure story: The day I fought against my heart, not the chart
Previously, the momentum of a stock that had made me a lot of money slowed down.
Even though the technical form had collapsed and the growth of the business had begun to show signs of dimming, I “It would be a waste to let it go here” was thinking.
As a result, I missed the timing to lock in profits many times, and in the end, I realized I was frozen in front of the screen with only the “feeling of wanting to protect it” remaining.
What I learned that day was, I am not fighting the market. I am fighting my own memories that was it.
Why do I treat it as a “masterpiece”?
In my case, a small magic is cast on a “masterpiece” before I know it.
The resolution of the numbers drops, and the saturation of the memories rises.
I will put the true nature of that into words.
Endowment Effect : My possessions look better than they are objectively. The memory of 'having risen together this far' is added to the evaluation.
Confirmation Bias : I tend to collect only bullish material. The number of agreeing opinions is replaced by the 'strength of the evidence'.
Sunk Cost Effect : The time spent researching, the past where it made me money, the accumulated articles and notes... because past investments are “a waste” , I postpone the conclusion.
Dealing with a “masterpiece”
Lower the 'saturation of memories' and increase the 'resolution of numbers.'
I will write down the coping methods I have found effective.
Remove the name and look: Make it a habit to look at ticker codes, such as 4565 or 9984. Erase the company name and your personal feelings from the screen for a moment.
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Set an exit in one line first:
Price condition: "Reduce if it breaks below ◯ yen at closing"
Fact condition: "Review if gross margin continues to deteriorate"
Time condition: "Exit if there is no improvement by the next earnings report"
Any one line is enough. A one-line 'promise' is better than a long 'excuse'.
Set a cap on size: Decide on a maximum weight within the portfolio (e.g., maximum ◯% for a single stock) and mechanically take some profit if it exceeds that. Return to 'managing weight' rather than likes or dislikes.
Someone else's account move: Pretend that 'this is a friend's account' and write down the reasons for holding/reasons for letting go by hand. If words filled with sentiment (attachment, belief, wanting to support) appear, it is a yellow light for the endowment effect.
The 'Would I buy it from zero?' test: Would I buy it anew at the current price? If NO, why do I still hold it? Answer in one word. If the answer leans toward 'memories,' lighten the size by one step.
Put the work on the shelf, put the capital into the future
It is wonderful to have a masterpiece.
However, a 'work' and 'current expected value' are different things. Decorate your memories on a shelf and direct your capital toward the future.
Being able to make this switch has made it much easier for me to continue investing.
To those who have read this far
Do you have a 'masterpiece' as well? If you don't mind, I would be happy if you could share what you use as a 'sign to let go'' (breaking below ◯ yen / no improvement by the next earnings report / change in management, etc.). It would be a learning experience for me, and I believe it would help someone else reading this (^-^)
Thank you very much for reading to the end.
■ Related (if you want to read further)
Investment Psychology Dictionary: Endowment Effect—What you can't let go of is not the 'value' but the fact that 'it is mine'