Frameworks, evidence, and implementation for resilient portfolio design
Portfolio Engineers Research is a living library of foundational essays, framework explainers, and implementation notes. The goal is not more content. It is better portfolio judgment: clearer decisions, stronger process discipline, and fewer narrative-driven mistakes across changing market environments.
This library is built for durable judgment, not content velocity
These articles are designed to clarify how Portfolio Engineers thinks about portfolio construction: factor diversification, macro regime awareness, implementation guardrails, and behaviorally sustainable decision-making. The aim is not to predict every turn. It is to make the portfolio more robust across the turns that inevitably arrive.
Latest research
The newest addition to the research library, with the rest of the archive below.
Research archive
A growing archive of framework explainers, evidence reviews, and portfolio construction essays. Articles are updated as the framework evolves.
Why cap-weighted indexes can look diversified by holdings while remaining concentrated by weight, and why that matters for portfolio design.
Why diversification improves resilience, why it often feels frustrating in real time, and why durable portfolio design matters more than prediction.
How disciplined rebalancing preserves diversification, controls concentration risk, and helps portfolios compound more consistently over time.
A regime-aware case for small-cap value built on valuation dispersion, crowded leadership, participation, and a higher real-yield backdrop.
Why narrow market leadership can distort headline index returns and what breadth reveals about participation, fragility, and risk appetite.
A rules-based contribution framework that preserves a baseline investing habit while varying only the extra contribution across changing regimes.
A practical framework for adapting modest portfolio tilts using inflation, liquidity, risk appetite, and growth—without prediction or reactive trading.