The cost of acting on feeling
Most portfolio damage is not caused by a bad thesis — it is caused by abandoning a good one at the worst possible moment. Fear sells the bottom; greed buys the top.
A written rule set moves that decision from the moment of stress to a calm moment in advance, when you can think clearly about what you would want to happen.
How My Metric Trade applies it
Your entry, exit and sizing rules are agreed once and executed consistently. The system does not re-negotiate them because a headline appeared or a candle looked dramatic.
You stay in control: you can pause or change a strategy at any time — but as a deliberate decision, not a reflex.
Ready to put this into practice?
See behavioural safeguards in action →Practical settings
Pair this with a cooling-off period on manual overrides and a maximum number of changes per week. Constraints on yourself are as valuable as constraints on the market.