Bullfighting is allowed to continue in Spain during phase 2 of the coronavirus quarentine. The bullring may have a maximum of 1/3 of the spectator capacity, but never more than 400 spectators. On the third phase of the coronavirus crisis, 50% of the arena's spectator capacity may be full, but never more than 800 spectators.
https://www.aplausos.es/noticia/53751/noticias/el-gobierno-permite-los-toros-con-400-personas-en-fase-2-y-hasta-800-en-fase-3.html