An endowment fires its small-cap value manager after 18 months of underperformance. The fired manager delivers top-decile returns the next year. The replacement manager reverts to median performance and charges 30 bps more. The endowment paid twice for the same mistake: exit costs, entry costs, and a year of missed alpha.
The search begins with defining the mandate: asset class, style, benchmark, risk budget (tracking error, active share targets), and constraints (ESG, liquidity). The mandate determines the universe to screen.
Returns-based style analysis (RBSA) regresses a manager's returns against style indexes (large value, large growth, small value, small growth). The factor loadings reveal the effective style exposure. A manager claiming small-cap value whose RBSA shows 60% loading on large growth is either misrepresenting style or has drifted. RBSA is backward-looking and requires only return data, no holdings transparency needed.
Holdings-based style analysis (HBSA) examines actual portfolio holdings to classify each by market cap, valuation, sector, and other characteristics. It reveals current positioning. HBSA is more granular and timely than RBSA but requires full holdings disclosure.
Common mistakes
- Hiring based on recent returns rather than the Four Ps. A 3-year track record can be dominated by a single factor cycle. A value manager who underperforms for 3 years during a growth rally may be perfectly skilled. Candidates who recommend termination based on return alone miss the point.
- Treating Type I and Type II errors as equally costly. For institutional investors, Type I errors (hiring bad managers) are more visible and politically damaging. This creates a systematic bias: committees become too conservative, increasing Type II errors (missing good managers with unconventional profiles).
- Ignoring key-person risk. A brilliant portfolio manager with no succession plan creates a fragile mandate. Institutional mandates should require succession planning as a condition of hiring.
Bottom line
- Returns-based style analysis (RBSA) regresses returns against style indexes, backward-looking, no holdings needed
- Holdings-based style analysis (HBSA) examines the current portfolio, forward-looking, requires holdings disclosure
- The Four Ps: Philosophy (why markets misprice), Process (how ideas become trades), People (team stability and alignment), Portfolio (does it match the stated approach?)
- Philosophy must be falsifiable and specific; active share must match the stated mandate or low active share signals a closet indexer
Exam shortcut
When the vignette presents two manager candidates, evaluate each against the Four Ps separately before comparing. The exam usually hides a critical flaw in one of the Ps, key-person risk, style drift, or closet indexing. For Type I vs. Type II, remember: Type I = hired a bad one (visible damage). Type II = missed a good one (invisible cost).
The full lesson (about 5,757 words, 38 min read) adds 2 worked examples, all 12 common mistakes, a self-check, free in the app.
Learning objectives
- manager selection
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