Interplanetary dust also includes very small (nanometer-sized) particles. The dynamics of nanodust is determined by electromagnetic forces, which accelerate the dust to velocities on the order of 500 km s⁻¹ or, in the vicinity of the Sun, trap them in bound orbits. We investigate the behavior of nanodust during a coronal mass ejection. We find a new population of extremely fast (1000 km s⁻¹) nanodust. We also study the effect of the ion drag force.