Explanation:
The effective application of PCA involves calculating how the portfolio reacts to principal components and then constructing hedging positions to neutralize these exposures. By aligning hedging strategies with the dominant factors identified through PCA, the portfolio becomes less sensitive to key market movements.
A is Incorrect. The focus is on dominant components first, where most variance occurs.
B is Incorrect. PCA considers both linear and non-linear aspects but is not limited to only non-linear analyses.
D is Incorrect. Relying on traditional estimates is contrary to using data-driven insights PCA provides.
Things to Remember:
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Q.6516 An asset manager uses PCA in structuring a hedge strategy for a bond portfolio. What steps must be followed to ensure that the hedge constructed effectively leverages PCA methodologies?
A
Identify less impactful components first to minimize initial variance misunderstandings.
B
Use PCA to exclusively model non-linear variances across unrelated instruments.
C
Calculate sensitivities of the portfolio to dominant PCs and align hedging positions to neutralize these risks.
D
Reverse engineer yield movements through traditional non-data-dependent estimates.
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