Trading Journal, Record Decisions and Emotions Not Just Results

TL;DR

• A trading journal is more useful when it records not only results but also the decision process and emotional state.
• Understanding cognitive biases like hindsight bias, loss aversion, and confirmation bias helps you spot repeated mistakes sooner.

Relatable scenario: 'Why did I do the same thing again?'

You opened a position after one morning news item shook your conviction. Outcomes were mixed, and days later you could not explain why you acted that way during review. Repeating this experience leads to self-blame or avoidance of trading. A trading journal bridges that gap as a mapping tool.

Psychology at work: writing reveals the mind

Trading decisions are not pure logic. Key principles:

• Hindsight bias: knowing the outcome makes it feel inevitable and hides process errors.
• Loss aversion: losses trigger stronger emotional responses than equivalent gains, leading to premature exits or excessive stop losses.
• Confirmation bias: you seek information that supports existing beliefs.

A journal acts as an external memo that exposes these distortions. Writing forces automated internal stories into an objective form.

What to write in practice: minimum and recommended items

Habituating these items before and after trades improves the quality of your reviews.

• Before trade: entry rationale (hypothesis), target and stop criteria, evidence supporting the trade (chart/indicator/news), confidence (1~5)
• During trade: emotional state (anxious/excited/neutral etc.), whether you deviated from the plan and why
• After trade: result (brief), one lesson more important than the raw P/L, next action plan

Recommended items: time of day, market condition, list of alternative trade ideas. Attach screenshots if needed.

Review method: how to spot patterns

Aggregate entries weekly by item. Cross-analyze emotion tags versus returns, and entry rationale versus performance to reveal recurring patterns. Finding frequently used phrases (for example "this time is different") alone helps identify confirmation bias. Rule: review when emotions are calm, following pre-set questions.

Small habits lead to change

Consistency is key for a trading journal. It feels awkward at first, but after recording 30~50 trades with a simple format, personal signals emerge. Consider linking with tools like 내 종목 레이더 if useful. Records do not instantly translate into skill, but they are decisive for finding and fixing repeated errors.

This article is for information only and not investment advice.