Ratio of the stellar to halo sAM as a function of stellar mass f_j(M_*) for ETGs assuming the SMHM relation of Moster et al. (2013). Ellipticals and S0s are shown with thick purple and green lines, respectively. Colored bands show the scatter around the median given by the Monte-Carlo simulations described in the text. The thinner purple lines show the median f_j(M_*) profiles using f_M from Dutton et al. (2010) for ETGs, Behroozi et al. (2013, 2019) for quiescent galaxies as labeled. For comparison, we also show the results of Posti et al. (2019) for spiral galaxies with a magenta line.