Exam ICWIM Topic 1 Question 7 Discussion

A custom benchmark is necessary when a portfolio contains multiple asset classes, as no single index can fully represent its performance.
* Why is Option D Correct?
* A diversified portfolio (e.g., equities, bonds, commodities) needs a composite benchmark that reflects its asset allocation.
* Example: A portfolio with 60% equities and 40% bonds might use a benchmark of 60% MSCI World Index and 40% Barclays Global Bond Index.
* Why Not Other Options?
* A (Easier than a pre-defined benchmark) # Custom benchmarks require more effort, not less.
* B (Absolute performance measure) # Benchmarks compare performance relative to the market, not in absolute terms.
* C (Tracking error measurement) # A benchmark helps measure tracking error, but the need for a custom benchmark arises due to asset diversity.
# Reference: CFA Institute (Benchmarking), CISI Wealth & Investment Management.