Ratio of IR resummed matter power spectrum at LO (blue) and NLO (orange) obtained for linear (top panel) and logarithmic (bottom panel) oscillations to the one obtained with a power-law PPS at redshift z = 0 when the frequency ω_X = 10 and the IR separation scale k_S = ϵk is varied (with ϵ ∈ [0.3, 0.7]). We also show the results of the linear theory (grey) and the ones obtained from N-body simulations (green).