As the title says - the ATA SSA is open for bidding. There are stallions for dressage, event, and jumper breeding with proven bloodlines (Abdullah PgE*, Horalas PgE*, Hennessy E, Songline Ps, Tatendrang Ps, Tizgane Pb Stiletto Pg**E, Hailo PgE, Martini PgE*, as well as young up and comers such as Guildenstern (a Millennium son) Nitro (an Abdullah son) and Barbarosa (an E.H. Buddenbrock son) Just to name a few!
You do NOT need to be a member of the ATA to bid (or win) on any of the stallions. There are safeguards in place that do not allow sniping and bidding will stay open as long as there is bidding going on. You can also set a max bid that will keep you at the top of the list as long as your max has not been reached. Many of the stallions in the SSA are approved with multiple registries and you are free to register with any registry. The ATA also offers cash foal awards for all SSA stallions that are inspected by the ATA.