Risk Budgeting Quant Interview Guide
Risk budgeting quant interview guide for risk contribution, budgets, constraints, rebalancing, examples, and caveats.
Candidates allocating risk across assets, strategies, or factors.
Risk budgets allocate risk, not capital
A risk budget specifies how much total risk each asset, strategy, or factor should contribute. Equal dollars can produce unequal risk.
Contribution depends on covariance
Marginal and total risk contributions depend on weights, volatility, and covariance with the rest of the portfolio, not on capital alone.
Concrete example
A low-volatility bond sleeve can receive more capital than an equity sleeve while contributing a similar amount of portfolio volatility.
Budgets need monitoring
Volatility and correlations move over time, so a portfolio that met budgets last month may violate them after market conditions change.
Common mistakes
Candidates often confuse equal weight, equal volatility, and equal risk contribution. Define which target you mean before comparing portfolios.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.