Portfolio Construction Interview Guide
Portfolio construction interview guide for objectives, universe selection, constraints, risk models, costs, sizing, and monitoring.
Candidates explaining how signals become positions and portfolios.
Construction turns forecasts into weights
A portfolio process takes signals, risk estimates, constraints, and costs, then produces positions. The objective should be explicit before optimization begins.
Define the investable universe
Universe choices affect liquidity, diversification, risk, and available data. Explain exclusions, eligibility rules, and how the universe changes over time.
Concrete example
A long-short equity portfolio may rank stocks by signal, cap individual names, neutralize sectors, and rebalance only when expected edge exceeds costs.
Constraints are part of the design
Position limits, leverage limits, sector exposure, turnover budgets, and liquidity rules can change the best portfolio materially.
Common mistakes
Candidates often optimize unconstrained weights and forget implementation. A tradable portfolio needs costs, capacity, and risk controls from the start.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.