The 90-Day Memory — The Investor Decision Journal

Quick test: Why did you buy your last stock? Specifically. The thesis. The fair value. The conditions that would prove you wrong. The exit trigger.
If you can't answer those four questions for every position you own, you're not investing. You're collecting tickers and hoping. The 90-Day Memory fixes that in 15 minutes per stock.
WHAT YOU GET:
Investment Snapshot Sheet — Capture every buy with thesis, fair value, conditions, exit trigger.
Thesis Builder — Write your reasoning in plain English. Catch weak assumptions before they cost you.
Pre-Commitment Sell Triggers — Decide your sell rules calmly. Future you will thank past you when red is everywhere.
90-Day Review System — Every quarter, re-read what you wrote. Spot patterns in your own thinking. That feedback loop is your edge.
Post-Exit Performance Review — Learn from every win and every loss. Most investors never close this loop.
WHY THIS WORKS: Buffett, Munger, Soros, Klarman — every great investor keeps a written record of decisions and reviews them. Not because they're forgetful. Because memory rewrites itself. The journal protects you from yourself.
FORMAT: Printable PDF, fillable on screen or by hand. Pairs with The Exit Plan (apply at sell) so every position has both a documented entry and a documented exit framework.