# Stock Principles: Trade Diary — Trading Discipline & Journal > Trading Discipline & Journal (iPhone/iPad app by HyunJun Moon.) - Source: https://appshunter.io/ios/app/stock-principles-trade-diary/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 · 47 MB - Languages: American English, German (Germany), Japanese, Korean, European Spanish, Chinese (Traditional, Hong Kong SAR China) - Released: 2026-07-16 - Data updated: 2026-09-09 - User reviews in markdown: https://appshunter.io/ios/app/stock-principles-trade-diary/id6789468040/reviews.md ## What is 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? - 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 their accounts dry (The Disposition Effect) - 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 Principles** and **Trading Discipline** to conquer emotional impulses. 《Stock Principles》 is not a passive stock tracker or generic portfolio watchlist. It is an institutional-grade discipline companion engineered with behavioral finance insights and timeless superinvestor philosophies to help you build, execute, and refine an emotionless 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! ## Version history (last 4 releases) ### 1.0.3 — 2026-09-09 Welcome to the official launch of Stock Principles! Engineered to help you eliminate impulsive trades and cultivate an unbreakable trading system: ・ Master Principles: Clone battle-tested strategies from Buffett, Munger, and Lynch ・ Disciplined Trade Journal: Mandatory buy thesis, emotion tracking & chart screenshot archive ・ Deep Trade Reflection: Correct cognitive biases like the Disposition Effect with behavioral finance ・ Macro Dashboard: Real-time Fear & Greed Index, Treasury yields, Dollar Index & VIX ・ Portfolio & Calendar: Monitor cash reserves and visualize trading frequency Build your system and master your discipline today! ### 1.0.2 — 2026-09-02 What's New Streamlined Stock Registration: Simplified the entry process to help you stay focused on your core investment principles. Behavioral Investing Articles: Added new insights and articles on behavioral finance to help you make rational investment decisions. Navigation Bar Labels: Added clear text labels to the navigation bar for easier, more intuitive browsing. UI/UX Improvements: Refined overall interface design and interactions for a smoother user experience. ### 1.0.1 — 2026-07-21 New Asset Statistics Screen: Dive deeper into your portfolio. Our brand-new detailed stats view helps you analyze individual assets at a glance. Emotion Info Tooltips: Get instant insights into your mood. Simply tap the handy tooltips to understand what your emotion tags mean. Upgraded Trading Emotion Stats: We've improved the way we track your recent feelings during trades, giving you a clearer, more accurate picture of your trading mindset. ### 1.0 — 2026-07-17 No release notes. ## 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: Gut, Skin & Mind](https://appshunter.io/ios/app/gutbrain-gut-skin-and-mind/id6776510618) - [K Noodle Recipe: Curated Guide](https://appshunter.io/ios/app/k-noodle-recipe-curated-guide/id6780361726) - [Jarana: Hair Loss & Scalp Log](https://appshunter.io/ios/app/jarana-hair-loss-and-scalp-log/id6782289598) - [Up To Ten: Parenting Journal](https://appshunter.io/ios/app/up-to-ten-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 2026-09-09.*