Total cold gas mass per halo, M_cg, (in M_⊙) vs. the stellar mass of the most massive satellite galaxy in each halo, M_*mms (in M_⊙) for CGM+Satellites (top panels) and CGM-Satellites (bottom panels) for the log M_*C = 10.160–10.405 (left panels), log M_*C = 10.453–10.715 (middle panels), and log M_*C = 10.931–11.288 (right panels) bin halos. As in Figure 3, respective quartiles and 1σ ranges are marked.