Low Volatility Optimal Portfolio Selection: Financial Experiments with Mixture Designs


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Authors

  • Ravindra Khattree Department of Mathematics and Statistics and Institute for Data Science Oakland University, Rochester, MI 48309
  • Md Shakhawat Alam Department of Mathematics and Statistics and Institute for Data Science Oakland University, Rochester, MI 48309

https://doi.org/10.56093/JISAS.V80I1.11

Keywords:

Financial Experiments; Mixture designs; Portfolio optimization; Space-filling Designs. AMS Subject Classifications: 62K20, 62K99, 62P05

Abstract

This article assesses the performance of various stock market portfolios using a space-filling mixture design and a model for the logratios in the 
portfolio allocation. Traditional portfolio analysis relies on historical correlations between various returns and adopts various optimization models. 
However, these methods rely excessively on the assumptions made and often tend to ignore the statistical variability in their optimization procedures. 
As a result, they may not perform well when implemented on independent future data. Additionally, the constraints and bounds imposed play a 
crucial role in determining the feasible region and hence the optimal value therein. By integrating a systematic simplex design approach for exploring 
component mixtures in our portfolio and applying a logratio transformation, we offer a robust framework for analyzing the portfolios and exploring 
how various portfolios perform relative to each other. An advantage of our method is that we are able to estimate the standard error for each portfolio, 
and this allows us to incorporate the consideration of volatilities into our decision making. Using publicly available stock market data, we demonstrate 
the effectiveness of our approach.

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Submitted

2026-07-29

Published

2026-07-29

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Section

Articles

How to Cite

Ravindra Khattree, & Md Shakhawat Alam. (2026). Low Volatility Optimal Portfolio Selection: Financial Experiments with Mixture Designs. Journal of the Indian Society of Agricultural Statistics, 80(01), 97-118. https://doi.org/10.56093/JISAS.V80I1.11
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