HC properties of Mrk 1018. Left panel: confidence intervals of Γ_HC vs. normalization for the HC power law. Contour levels correspond to confidence of 68%, 90%, and 99%. Dashed lines are used for the data related to the faint state, while solid lines correspond to the observations acquired during the bright state. Right panel: time evolution of Γ_HC. Symbols and colors correspond to different telescopes: blue square Chandra, black circle XMM-Newton, green star NuSTAR, and red diamond Swift-XRT. The first data point of Chandra corresponds to the observation 12868, which is heavily affected by the pileup. The vertical dashed black line roughly denotes the separation between the bright and the faint state.