no code implementations • 1 Jan 2024 • Alejandro Rodriguez Dominguez
Portfolio's optimal drivers for diversification are common causes of the constituents' correlations.
no code implementations • 2 Sep 2023 • Alejandro Rodriguez Dominguez, Muhammad Shahzad, Xia Hong
A closed-form solution with least-squares is presented, which to the authors knowledge, is the fastest solution in the literature for multiple hypotheses and structured predictions.
no code implementations • 11 Jul 2023 • Alejandro Rodriguez Dominguez, Irving Ramirez Carrillo, David Parraga Riquelme
By analyzing the time series of the standard deviation of the greatest eigenvalue for $2\times 2$ correlation matrices with different lags we can analyze deviations from the Tracy-Widom distribution to test structural relationships between these two time variables.
no code implementations • 8 Oct 2022 • Alejandro Rodriguez Dominguez, David Stynes
With our geometric version of the tests via clustering, we can test the hypothesis that we can improve state-of-the-art settings for QHD, by combining QCD and QHD simultaneously, as well as including information about pre-change time-evolution in correlations.
no code implementations • 17 Feb 2022 • Alejandro Rodriguez Dominguez
Portfolio constituents are embedded into the space of sensitivities with respect to their common drivers, and a distance matrix in this space called the Sensitivity matrix is used to solve the convex optimization for diversification.