Present work investigates the triaxial compression behavior of face-centered cubic C 60 and C 80 solids using molecular dynamics simulation. Second-generation empirical bond-order potential governs the atomic interactions within a C 60 or C 80 molecule, whereas van der Waals potential dominates the interactions between C 60 or C 80 molecules. The equilibrium lattice spacings for C 60 and C 80 solids are obtained as 14.26Å and 15.56Å, respectively. Investigation focuses on the effects of: (i) van der Waals potential, (ii) temperature and (iii) loading rate, on the bulk moduli and hydrostatic stress vs. volumetric strain curves of C 60 and C 80 solids. Our results showed that these properties are dependent on loading rate and the choice of van der Waals potential, but insensitive to temperature change.