Downside Risk Reduction Using Regime-Switching Signals: A Statistical Jump Model Approach

Fuente: arXiv
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Autori principali: Shu, Yizhan, Yu, Chenyu, Mulvey, John M.
Natura: Preprint
Pubblicazione: 2024
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author Shu, Yizhan
Yu, Chenyu
Mulvey, John M.
author_facet Shu, Yizhan
Yu, Chenyu
Mulvey, John M.
contents This article investigates a regime-switching investment strategy aimed at mitigating downside risk by reducing market exposure during anticipated unfavorable market regimes. We highlight the statistical jump model (JM) for market regime identification, a recently developed robust model that distinguishes itself from traditional Markov-switching models by enhancing regime persistence through a jump penalty applied at each state transition. Our JM utilizes a feature set comprising risk and return measures derived solely from the return series, with the optimal jump penalty selected through a time-series cross-validation method that directly optimizes strategy performance. Our empirical analysis evaluates the realistic out-of-sample performance of various strategies on major equity indices from the US, Germany, and Japan from 1990 to 2023, in the presence of transaction costs and trading delays. The results demonstrate the consistent outperformance of the JM-guided strategy in reducing risk metrics such as volatility and maximum drawdown, and enhancing risk-adjusted returns like the Sharpe ratio, when compared to both hidden Markov model-guided strategy and the buy-and-hold strategy. These findings underline the enhanced persistence, practicality, and versatility of strategies utilizing JMs for regime-switching signals.
format Preprint
id arxiv_https___arxiv_org_abs_2402_05272
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Downside Risk Reduction Using Regime-Switching Signals: A Statistical Jump Model Approach
Shu, Yizhan
Yu, Chenyu
Mulvey, John M.
Portfolio Management
Statistical Finance
This article investigates a regime-switching investment strategy aimed at mitigating downside risk by reducing market exposure during anticipated unfavorable market regimes. We highlight the statistical jump model (JM) for market regime identification, a recently developed robust model that distinguishes itself from traditional Markov-switching models by enhancing regime persistence through a jump penalty applied at each state transition. Our JM utilizes a feature set comprising risk and return measures derived solely from the return series, with the optimal jump penalty selected through a time-series cross-validation method that directly optimizes strategy performance. Our empirical analysis evaluates the realistic out-of-sample performance of various strategies on major equity indices from the US, Germany, and Japan from 1990 to 2023, in the presence of transaction costs and trading delays. The results demonstrate the consistent outperformance of the JM-guided strategy in reducing risk metrics such as volatility and maximum drawdown, and enhancing risk-adjusted returns like the Sharpe ratio, when compared to both hidden Markov model-guided strategy and the buy-and-hold strategy. These findings underline the enhanced persistence, practicality, and versatility of strategies utilizing JMs for regime-switching signals.
title Downside Risk Reduction Using Regime-Switching Signals: A Statistical Jump Model Approach
topic Portfolio Management
Statistical Finance
url https://arxiv.org/abs/2402.05272