High-Dimensional Shrinkage Optimal Portfolios R package HDShOP version 0.1.7 CRAN Task View: Finance (https://CRAN.R-project.org/view=Finance) Constructs shrinkage estimators of high-dimensional mean-variance portfolios and performs high-dimensional tests on optimality of a given portfolio. The techniques developed in Bodnar et al. (2018 <doi:10.1016/j.ejor.2017.09.028>, 2019 <doi:10.1109/TSP.2019.2929964>, 2020 <doi:10.1109/TSP.2020.3037369>, 2021 <doi:10.1080/07350015.2021.2004897>) are central to the package. They provide simple and feasible estimators and tests for optimal portfolio weights, which are applicable for 'large p and large n' situations where p is the portfolio dimension (number of stocks) and n is the sample size. The package also includes tools for constructing portfolios based on shrinkage estimators of the mean vector and covariance matrix as well as a new Bayesian estimator for the Markowitz efficient frontier recently developed by Bauder et al. (2021) <doi:10.1080/14697688.2020.1748214>. Software Depends: R (>= 3.5.0) Imports: Rdpack, lattice Suggests: ggplot2, testthat (>= 3.0.0), EstimDiagnostics, MASS, corpcor, waldo Dmitry Otryakhin <d.otryakhin.acad@protonmail.ch> Comprehensive R Archive Network (CRAN) Taras Bodnar [aut] (ORCID: <https://orcid.org/0000-0001-7855-8221>), Solomiia Dmytriv [aut] (ORCID: <https://orcid.org/0000-0003-1855-3044>), Yarema Okhrin [aut] (ORCID: <https://orcid.org/0000-0003-4704-5233>), Dmitry Otryakhin [aut, cre] (ORCID: <https://orcid.org/0000-0002-4700-7221>), Nestor Parolya [aut] (ORCID: <https://orcid.org/0000-0003-2147-2288>) GPL-3 2025-11-14 application/tgz https://CRAN.R-project.org/package=HDShOP doi:10.32614/CRAN.package.HDShOP