Equity Benefits
Equity Segmentation
Active Management Risks
Benchmarks
rules based, transparent, investable
select based on exposure (segment, capitalization, growth vs value) and maintenance (weighting method, stock conc, rebalancing, reconstitution)
Passive Factor Based Strategies
smart beta
Derivatives in Passively Managed Acounts
lower costs, more liquid; expire, limits, credit risk, basis risk
Tracking Error
SD of excess return vs index; passive managers; identified w/ attribution analysis
causes: fees/ commissions, sampled portfolios, cash drag
prevention: full replication, min cash w/ futures or netting inflows/ outflows
Fundamental Active Management Portfolios
Quantitative Active Management Portfolios
Statistical Arbitrage Strategies
Event Driven Strategies
risk = merger will fail
Fundamental Investing Pitfalls
Quantitative Investing Pitfalls
Pearson IC
correlation between factor exposure and holding period return
Spearman IC
correlation between factor expsoure and holding period return, controlling for outliers
Holdings-Based Style Analysis
style box to classify holdings by growth and value
+ accurate, detects style drift faster
Returns-Based Style Analysis
regression of returns against passive style indices
+ don’t need holdings data, easy, universal
Sources of Active Returns
Portfolio Construction Process
Expected Active Return
E(rA) = IC √(BR) σRA TC
BR = # active decisions/ year
Active Share
diff between size of the position and benchmark; want higher active share b/c paying for active management
0.5 Σ |Wp - Wb|
Active Risk
tracking error b/c factor exposure and idiosyncratic risk
√ [( Σ RA2 )/ ( T - 1 )]
Factors in Determining Level of Risk
CAV
contribution of asset to portfolio variance
( wp - wb ) cov