Asymmetry parameter analysis for TDE host galaxies and their control samples. The top panel presents the STATMORPH asymmetry parameter A_stat for TDE host galaxies (star symbols) and their control samples (cross symbols) as a function of M_BH, M_*, and z. As in Figure 5, measurements are based on UNIONS images (orange symbols) when available, and SDSS images (blue symbols) otherwise. The control sample measurements were weighted-averaged over 500 samples and consistently derived from the same survey as their TDE host galaxy. The bottom panel displays the difference in the asymmetry parameter ΔA_stat = A_stat,TDE − A_stat,control, with 1σ error bars. The shaded regions indicate the mean ΔA_stat for the UNIONS (orange), SDSS (blue), and combined (green) subsets. A dashed line marks ΔA_stat = 0. The rightmost panel provides a histogram of the ΔA_stat distribution for these different samples. Overall, these results show that TDE host galaxies, especially the higher-resolution UNIONS sample, display no indication of enhanced asymmetry (and actually slightly reduced asymmetry) compared to their control sample.