Diversification & Concentrationarticle

Correlation Breakdown in Market Crises: Why Correlation Jumps to One When Diversification Matters Most

Examine why asset correlations surge toward one during market crises and how defensive quality factor screening helps portfolios withstand asymmetric tail dependence.

Sep 22, 20262 min read

Diversification & Concentrationcomparison

Cross-Asset Diversification vs Equity Factor Balance: Where Traditional Hedges Fail

Compare traditional 60/40 multi-asset diversification against internal equity factor balancing, examining how positive stock-bond correlations erode duration hedges.

Sep 22, 20262 min read

Diversification & Concentrationmethodology

Measuring Effective Number of Bets: Principal Component Analysis in Portfolio Risk

Understand Attilio Meucci's Effective Number of Bets (ENB) framework using Principal Component Analysis to quantify true uncorrelated risk sources in a portfolio.

Sep 22, 20262 min read

Diversification & Concentrationguide

Herfindahl-Hirschman Index for Portfolios: Quantifying Weight vs Risk Concentration

Learn how to apply the Herfindahl-Hirschman Index (HHI) to investment portfolios, contrasting capital-weighted concentration with factor-risk concentration.

Sep 22, 20262 min read

Diversification & Concentrationarticle

The Illusion of Diversification: Why 50 Stocks Can Still Leave You 90% Factor Concentrated

Learn why holding 50 stocks can still leave an equity portfolio heavily concentrated in common factor risks like high beta, momentum, or duration sensitivity.

Sep 22, 20262 min read

Diversification & Concentrationanalysis

Stress Testing and Scenario Analysis in Portfolio Risk: Moving Beyond Historical VaR

Discover how forward-looking scenario stress testing overcomes historical VaR blind spots by mapping macroeconomic regime shocks onto multi-factor portfolio exposures.

Sep 22, 20263 min read