90% of traders lose money — not because they can't read charts, but because they can't follow their own rules

Stop Trading on Emotion Start Trading on Principle

KeepRule helps you build, follow, and refine your personal investment rules — so every trade has a reason, and every loss has a lesson

KeepRule product interface showcasing investment wisdom tracking

Capture Your Rules

Your best trading insights are scattered across notes, screenshots, and memory. KeepRule gives them a permanent, searchable home

Review Every Trade

See your trade history alongside the rules you followed — or broke. Patterns you never noticed become obvious

Get AI Scoring

AI reads all your rules and scores your discipline — not your P&L. It tells you which rule you broke and why it matters

The Difference Between Gamblers and Investors? A System

Buffett, Munger, Dalio, Graham — every legendary investor operates on a personal rule set. They don't predict the market. They prepare for it. KeepRule gives you the same framework

"Rule No. 1: Never lose money. Rule No. 2: Never forget Rule No. 1."

Warren Buffett

Not a platitude — it's a complete stop-loss discipline. The difference is whether you have it written down and follow it every single time

"An investment operation is one which, upon thorough analysis, promises safety of principal and an adequate return."

Benjamin Graham

"Thorough analysis" means having criteria before you enter — not rationalizing after you've already bought. That's what a rule system does

"He who knows when he can fight and when he cannot will be victorious."

Sun Tzu

Knowing when NOT to trade is a rule. The best investors spend most of their time waiting — but only a system gives you the patience to do it

Record

Your future self will thank you for writing this down

What's your thesis? Where's the stop-loss? KeepRule's structured forms turn gut feelings into documented reasoning — before you click buy

  • Trade log: ticker, direction, position size, entry thesis
  • Quick notes: market observations, emotional state, key insights
  • Auto-tagging: every record linked, traceable, searchable
Learn more →
Trade recording interface showing detailed trade logs and performance metrics
Refine

Turn every lesson into a rule you'll actually follow

Most traders repeat mistakes because lessons stay in their heads. KeepRule helps you extract principles from every win and loss — and puts them where you'll see them before your next trade

  • Risk rules: max loss per trade, position limits, stop-loss discipline
  • Entry criteria: volume-price signals, risk-reward ratio thresholds
  • Mental rules: pause after losing streaks, no revenge trades, no FOMO entries
Learn more →
Investment principles library displaying wisdom from Warren Buffett and Charlie Munger
Execute

AI that scores your discipline, not your P&L

Not a generic trading bot — a private referee who has read every one of your rules. After each trade, it tells you exactly where you stayed disciplined and where you didn't

  • Auto-compares each trade against your personal rule set
  • Discipline score: 9/10 means you followed your system, regardless of profit
  • Specific feedback: which rule was broken, what to improve next time
Learn more →
AI-powered trade analysis showing investment scoring based on Warren Buffett principles

Explore Investment Wisdom

Discover curated knowledge from the greatest investors of all time

Your next trade deserves a reason

Join thousands of investors who trade with rules, not feelings. Free to start. No credit card required