(Anti)deuterons. (Anti)helions. Ratio between the \pt-integrated yields of nuclei and protons as a function of multiplicity for (anti)deuterons (a) and (anti)helions (b). Measurements are performed in HM pp collisions at $\sqrt{s} = 13$ TeV, in MB pp collisions at $\sqrt{s} = 13$ TeV  and at $\sqrt{s} = 7$ TeV , in p--Pb collisions at $\snn = 5.02$ TeV , and in Pb--Pb collisions at $\snn = 2.76$ TeV . Vertical bars and boxes represent statistical and systematic uncertainties, respectively. The two black lines are the theoretical predictions of the Thermal-FIST CSM  for two sizes of the correlation volume $V_{\mathrm{C}}$. For (anti)deuterons, the green line represents the expectation from a coalescence model . For (anti)helion, the blue and green lines represent the expectations from a two-body and three-body coalescence model, respectively .