With block trading, traders can open orders in opposite directions or conclude transactions, provided that the minimum volume and price requirements are fulfilled. It is designed for large-volume transactions. There are two types: Agreed blocks (reserved for IBEX 35 securities) and parameterized blocks (reserved for all securities), including New Market securities. Trading hours are from 9 a.m. to 5.30 p.m. and orders can be entered once the open session begins. These orders will be valid for one day, and the order must come from a single ordering party.