Bottom up - Relative
Position Marginal Contribution To Tracking Risk
Bottom up - Absolute
Position Marginal Contribution To Total Risk
Top Down - Relative
Attribute tracking risk to relative allocation and selection decision
Factor Based - Relative
Factor Marginal Contribution to tracking risk and active specific risk.
Top down - Absolute
Factors Marginal Contribution to total risk and specific risk
Factor Based - Absolute
Factors Marginal Contribution to total risk and specific risk