The ₹ cost of breaking your own trading rules — measured
Every trader has rules. Almost no trader knows what breaking them costs. That number — the rupee cost per broken rule — is the single most motivating statistic in trading psychology.
The framework
The mechanics are simple. Every trading day, mark each of your rules as followed or broken — it takes 20 seconds. Then total your losses on the days each rule was broken. After a month, sort the list descending.
The rule at the top is your most expensive habit. Not the one you feel worst about — the one that actually costs the most. They're rarely the same rule.
What traders usually find
Common results from intraday FnO traders: 'stop after 2 consecutive losses' tops the list (revenge trading), followed by 'risk max 1% per trade' (oversizing after wins) and 'no entries in the first 15 minutes' (gap chasing).
The pattern is consistent: the expensive rules are the emotional ones, not the technical ones. Nobody loses lakhs because their moving average period was wrong.
Why seeing the number works
Vague guilt ('I overtraded again') doesn't change behaviour. A number does: '₹18,400 lost this month on days I revenge-traded' is unforgettable. It converts discipline from a virtue into a P&L line item — and traders are very good at optimizing P&L line items.
TradeMarkk automates this entire loop with a daily rule checklist and an adherence dashboard that prices every broken rule. Twenty seconds a day, and the number it shows you is usually the one that finally changes the habit.
Put this into practice — free & open source
Open TradeMarkk