Top panel: relationship between MBH mass and circular velocity. The circles are model MBHs at z = 0 and the error bars show the datapoints collected in Kormendy et al. (2011) and the best fit derived in Volonteri et al. (2011c). Bottom panel: fraction of spheroids as a function of stellar mass. We scale from halo mass to stellar mass through the data described in Figure 1 of Hopkins et al. (2010), assuming that a fixed fraction (10%–50%) of the baryons is in stars (open red points and filled orange points, respectively). We compare the fraction of spheroids to the result of Conselice (2006).