# Stock Principles: Trade Rules — Behavioral Finance & Rules > Behavioral Finance & Rules (iPhone/iPad app by HyunJun Moon.) - Source: https://appshunter.io/ios/app/stock-principles-trade-rules/id6789468040 (this page in markdown: same URL + `.md`) - Developer: [HyunJun Moon](https://appshunter.io/developer/6774416204) - Category: Finance, Productivity - Price: Free - Age rating: 17+ - Requires: iOS 15.0 · 48 MB - Languages: American English, German (Germany), Japanese, Korean, European Spanish, Chinese (Traditional, Hong Kong SAR China) - Released: 2026-07-16 - Data updated: 2026-10-12 ## What is Stock Principles? 《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. -------------------------------------------------------------------------------- ◆ Key Features of Stock Principles -------------------------------------------------------------------------------- 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 -------------------------------------------------------------------------------- ◆ Recommended For: -------------------------------------------------------------------------------- - 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! ## Is Stock Principles safe? Not enough ratings yet to assess Stock Principles. ## Is Stock Principles legit? Stock Principles: Trade Rules appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Stock Principles is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 1.0.8 — 2026-10-10 • 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. ### 1.0.7 — 2026-09-22 • Removed all credit requirements for reading articles (Master Philosophies, Cycle Theory, Principles). • Added an AI analysis feature for stock trading journals. • Improved overall UI/UX and resolved minor bugs. ### 1.0.6 — 2026-09-18 • Added behavioral finance articles and master investor profiles to the Home tab. • Displayed citation counts for referenced principles. • Added macro indicators: Bitcoin, Ethereum, and the Semiconductor Index. • Resolved an issue that prevented posting comments on master profiles. ### 1.0.5 — 2026-09-16 • Refined investment principles and quotes from legendary investors. • Optimized system fonts to enhance readability. • Fixed data collection issues for macroeconomic indicators. ### 1.0.4 — 2026-09-14 • Optimized font sizes for enhanced text readability. • Added view count indicators to master investor principles. • Resolved macro data processing issues and improved stability.a ## Apps similar to Stock Principles | App | Rating | Price | Category | | --- | --- | --- | --- | | [Trading Champ: Stock Journal](https://appshunter.io/ios/app/trading-champ-stock-journal/id6762099642) | — | Free | Finance | | [ざっくり株トレ損益表](https://appshunter.io/ios/app/id1587582182) | — | Free | Finance | | [ハイローデモトレード](https://appshunter.io/ios/app/id1580894934) | — | Free | Finance | | [관련주식검색기](https://appshunter.io/ios/app/id1189758512) | 4.0 (8) | Free | Finance | | [株日記 - 株管理アプリ](https://appshunter.io/ios/app/id6478166672) | — | Free | Finance | | [USIM스마트인증 - 공동인증서발급, 유심 저장](https://appshunter.io/ios/app/usim/id1288412388) | 1.8 (4) | Free | Finance | ## More apps by HyunJun Moon - [PinkyBank: Mood Time Capsule](https://appshunter.io/ios/app/pinkybank-mood-time-capsule/id6774416202) - [Sai — people & patterns](https://appshunter.io/ios/app/sai-people-and-patterns/id6774458829) - [GutBrain: Stool & Poop Log](https://appshunter.io/ios/app/gutbrain-stool-and-poop-log/id6776510618) - [K Noodle: Korean Ramyeon Hacks](https://appshunter.io/ios/app/k-noodle-korean-ramyeon-hacks/id6780361726) - [Jarana: Hair Loss & Scalp Log](https://appshunter.io/ios/app/jarana-hair-loss-and-scalp-log/id6782289598) - [UpToTen - Co Parenting Journal](https://appshunter.io/ios/app/uptoten-co-parenting-journal/id6784228630) All apps by HyunJun Moon: https://appshunter.io/developer/6774416204 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-12.*