This ECO 10 index was set up for the Spanish "El Economista" newspaper. It includes 10 Spanish stocks selected on the basis of a survey of 50 renowned fund managers and analysts. At the quarterly reviews, the weighting of each of the 10 components is capped at 10 percent. Index calculation and dissemination are in real-time. STOXX Ltd. Will be responsible in future for the daily adjustment of corporate actions and the quarterly review of free float factors and outstanding shares.