You own 10 stocks — but how many effective positions do you actually have? Detect fake diversification, run a black swan stress test, and get a Core-Satellite grade.
Step 1 — Your Investing School
Step 2 — Enter Your Holdings
Enter each position: name, weight (% of portfolio), and sector. Weights should sum to 100%.
#
Position / Name
Weight (%)
Sector / Industry
Total Weight:0%
Total Portfolio Value (for black swan stress test) Enter your actual portfolio value
Portfolio Health Scores
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N-Effective Positions
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Concentration (HHI)
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Top-3 Concentration
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Diversification Score
Position Breakdown
Fake Diversification Check
🦢 Black Swan Stress Test
Core-Satellite Architecture Grade
All 5 Schools — Optimal Diversification Rules
8 AI Committee — Portfolio Health Analysis
★ Star your best AI above — the links below only glow when you pick one