Portfolio Attribution Quant Interview Guide
Portfolio attribution quant interview guide covering return attribution, risk attribution, factors, residuals, examples, and caveats.
Candidates explaining where portfolio performance and risk came from.
Attribution explains sources
Portfolio attribution decomposes return or risk into components such as asset allocation, selection, factors, sectors, timing, and residual effects.
Return and risk attribution differ
Return attribution explains what made or lost money. Risk attribution explains what exposures contributed to volatility or potential loss.
Concrete example
A portfolio may outperform because of stock selection while taking more sector risk than intended. Attribution separates those effects.
Use attribution as diagnosis
Attribution can reveal unintended bets, crowded exposures, model decay, or implementation costs, but it depends on the chosen model and categories.
Common mistakes
Candidates often treat attribution as causal proof. It is a structured explanation, and different attribution models can tell different stories.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.