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End-to-end risk budgeting portfolio optimization with neural networks

Author

Listed:
  • A. Sinem Uysal

    (Princeton University)

  • Xiaoyue Li

    (Princeton University)

  • John M. Mulvey

    (Princeton University
    Princeton University)

Abstract

Traditional stochastic optimization in financial operations research applications consist of a two-step process: (1) calibrate parameters of the assumed stochastic processes by minimizing a loss function, and (2) optimize a decision vector by reference to the investor’s reward/risk measures. Yet this approach can encounter the error maximization problem. We combine the steps in a single unified feedforward network, called end-to-end. Two variants are examined: a model-free neural network, and a model-based network in which a risk budgeting model is embedded as an implicit layer in a deep neural network. We performed computational experiments with major ETF indices and found that the model-based approach leads to robust performance out-of-sample (2017–2021) when maximizing the Sharpe ratio as the training objective, achieving Sharpe ratio of 1.16 versus 0.83 for a pure risk budgeting model. Simulation studies show statistically significant difference between model-based and model-free approaches as well. We extend the end-to-end algorithm by filtering assets with low volatility and low returns, boosting the out-of-sample Sharpe ratio to 1.24. The end-to-end approach can be readily applied to a wide variety of financial and other optimization problems.

Suggested Citation

  • A. Sinem Uysal & Xiaoyue Li & John M. Mulvey, 2024. "End-to-end risk budgeting portfolio optimization with neural networks," Annals of Operations Research, Springer, vol. 339(1), pages 397-426, August.
  • Handle: RePEc:spr:annopr:v:339:y:2024:i:1:d:10.1007_s10479-023-05539-4
    DOI: 10.1007/s10479-023-05539-4
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    References listed on IDEAS

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