Explore a 58-minute virtual talk on multivariate portfolio choice using quantiles, presented by Carole Bernard as part of the SIAM Activity Group on Financial Mathematics and Engineering series. Delve into the extension of He and Zhou's quantile approach to solve multivariate optimal portfolios for various preferences, including multivariate expected utility and inf-convolution of tail risk measures. Discover a novel numerical approach for solving multivariate optimal portfolio problems. Examine topics such as cost efficiency, risk sharing, mutual exclusivity, and correlation aversion in portfolio management. Gain insights into the latest research in mathematical finance and engineering, with opportunities for questions and discussion.