ASASSN-18fk: stage A and B superhumps Colin Littlefield, Itoh-san, Pavol Dubovsky, Tamas Tordai, Crimean Astrophys. Obs. team and Kiyota-san have reported observations. The period of stage A and B superhumps were 0.0606(1) d and 0.05944(3), respectively. The transition occurred on Mar. 24.