@article{covariancematrixfilteringandportfolio, title = {Covariance matrix filtering and portfolio optimisation: the Average Oracle vs Non-Linear Shrinkage and all the variants of DCC-NLS}, author = {Christian Bongiorno and Damien Challet}, year = {2023}, eprint = {2309.17219}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2309.17219v1}, }