Classification of Extremal Dependence in Financial Markets via Bootstrap Inference

Qian Hui; Sidney I. Resnick; Tiandong Wang

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arXiv · 2506.04656

Classification of Extremal Dependence in Financial Markets via Bootstrap Inference

Qian Hui·Sidney I. Resnick·Tiandong Wang

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Abstract

Accurately identifying the extremal dependence structure in multivariate heavy-tailed data is a fundamental yet challenging task, particularly in financial applications. Following a recently proposed bootstrap-based testing procedure, we apply the methodology to absolute log returns of U.S. S&P 500 and Chinese A-share stocks over a time period well before the U.S. election in 2024. The procedure reveals more isolated clustering of dependent assets in the U.S. economy compared with China which exhibits different characteristics and a more interconnected pattern of extremal dependence. Cross-market analysis identifies strong extremal linkages in sectors such as materials, consumer staples and consumer discretionary, highlighting the effectiveness of the testing procedure for large-scale empirical applications.

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BibTeX RIS

Qian Hui, Sidney I. Resnick, Tiandong Wang. 2025-06-05. Classification of Extremal Dependence in Financial Markets via Bootstrap Inference. https://arxiv.org/abs/2506.04656

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