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A hybrid model for intraday volatility prediction in Bitcoin markets

Author

Listed:
  • Raj, Prakash
  • Bera, Koushik
  • Selvaraju, N.

Abstract

Volatility modeling in cryptocurrencies poses unprecedented challenges due to extreme price fluctuation, 24/7 trading cycles, and decentralized and speculative environments. This article presents a novel hybrid BEMD-REGARCH model by integrating the bivariate empirical mode decomposition (BEMD) with the realized exponential generalized autoregressive conditional heteroscedasticity (REGARCH) model to estimate the volatility of cryptocurrencies. The highlights include the use of intraday hourly returns and realized variance, and the model forecasts intraday 1-hour-ahead volatility. Testing the hybrid model on various datasets ensures robustness, and the model yields superior volatility forecasting gains over the traditional REGARCH model on various performance metrics. In addition, BEMD trumps EMD by scoring lower forecasting errors than the EMD-GARCH model. In summary, applying BEMD to the REGARCH model enhances its forecasting performance.

Suggested Citation

  • Raj, Prakash & Bera, Koushik & Selvaraju, N., 2025. "A hybrid model for intraday volatility prediction in Bitcoin markets," The North American Journal of Economics and Finance, Elsevier, vol. 78(C).
    • Handle: RePEc:eee:ecofin:v:78:y:2025:i:c:s106294082500066x
    DOI: 10.1016/j.najef.2025.102426
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    More about this item

    Keywords

    Decomposition algorithm; EMD; REGARCH; BEMD; Intraday; Volatility forecasting;
    All these keywords.

    JEL classification:

    • C58 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Financial Econometrics
    • C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection

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