Stock Principles: Trade Rules
Behavioral Finance & Rules
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Master trading discipline with Stock Principles! Build custom rules from Buffett & Munger, log mandatory buy thesis, overcome behavioral biases, and track Fear & Greed.
《Stock Principles》 is an institutional-grade trading discipline app engineered with behavioral finance and trading psychology principles to help you eliminate FOMO, conquer cognitive biases, and build rule-based stock principles.
"Invert, always invert: Turn a situation or problem upside down. What happens if all our plans fail? Where don't we want to go, and how do you get there? Instead of looking for success, look for failure and avert that." — Charlie Munger
Why do intelligent investors consistently repeat devastating mistakes in the stock market?
Behavioral finance and cognitive psychology show that failure stems from psychological biases rather than stock analysis:
- Chasing parabolic rallies right at the peak out of Fear of Missing Out (FOMO)
- Selling winning stocks for pocket change while letting toxic losers bleed accounts dry (Disposition Effect & Loss Aversion)
- Pulling the trigger without a clear thesis, defined stop-loss, or predetermined exit plan
Losing money in the stock market isn't about lacking stock picks.
It's about the lack of **Ironclad Stock Principles** and **Trading Discipline** to conquer emotional impulses.
《Stock Principles》 helps you build, execute, and refine an emotionless, rule-based trading system.
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◆ Key Features of Stock Principles
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1. Superinvestor Principles & Rule Customization
- Access core philosophies and mental models from Warren Buffett, Charlie Munger, Peter Lynch, Benjamin Graham, and Jesse Livermore
- Clone battle-tested rules into your personal playbook with one tap
- Define strict entry criteria, stop-loss triggers, take-profit targets, and cash allocation limits
2. Mandatory Thesis Trade Journal & Chart Snapshots
- "No Thesis, No Trade": Obligatory buy reason prompt forces clarity before opening any position
- Psychological emotion tagging (Greed, Fear, Calm, Impatience, Conviction) to detect mental leakage
- Attach candlestick chart snapshots and news headlines to preserve the exact market environment
3. Deep Trade Reflection (Post-Mortem Review) & Behavioral Finance
- Automated discipline score evaluating how closely you honored your predefined rules
- Diagnose behavioral cognitive biases like the Disposition Effect, Loss Aversion, and Anchoring
- Transform painful losses into durable compounding lessons for future trades
4. Fear & Greed Index & Macroeconomic Dashboard
- Live CNN Fear & Greed Index dial indicator with historical trend analysis
- Track 10-Year Treasury Yields, Yield Curve Spreads, US Dollar Index (DXY), and VIX Volatility
- Ground your market perspective in objective data when public sentiment hits euphoric extremes or panic bottoms
5. Portfolio Allocation & Visual Trade Calendar
- Live asset allocation and cash reserve monitoring to prevent dangerous over-concentration
- Interactive monthly trade calendar to monitor execution tempo and eliminate destructive overtrading
- Cumulative reflection timeline tracking your evolution into a disciplined market operator
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◆ Recommended For:
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- Retail traders seeking to eliminate FOMO and panic-selling
- Swing and position traders needing a structured trading diary with chart uploads
- Long-term value investors adhering to strict margin of safety guidelines
- Anyone wanting to cultivate the mental calm and patience of legendary investors
Escape the market noise. Formulate your principles.
The disciplined investor never panics. Download Stock Principles and start your structured journal today!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Added Trading Journal feature to record your trades.
• Separated Trading Journal and Stock Trading tabs with calendar view support.
• Refined UI/UX for a clearer and more streamlined experience.
The developer, HyunJun Moon, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HyunJun Moon
- Size
- 50.3 MB
- Category
- Finance
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, German, Japanese, Korean, Spanish, Traditional Chinese
- Age Rating
16+
- 16+
- Contains
Advertising
- Copyright
- © 2026 moonshot