1. Currently, Hongyi wants to invest 50% of the capital in 13 Hi- while the remaining capital will be evenly split between Santos and CSR. Calculate the expected return of this portfolio using the following formula: r], = wrr (w, r are the weights and returns matrices described above; rig, is the portfolio return) Weights (w) CSR Sum of weights STO JBH Returns (r ) CSR 15.79% STO 18.91% JBH 24.32% Variance-Covariance matrix (V) CSR STO JBH CSR 0.0973 0.0665 0.0216 STO 0.0665 0.1868 0.0458 JBH 0.0216 0.0458 0.0996