IBEX 35 Index components | values (ES0SI0000005)

The IBEX 35 (Iberia Index) is a share index that includes the 35 most important Spanish companies. The index was introduced on January 14, 1992. The index base is 3,000 points as of December 31, 1989. In contrast to the DAX, it is a price index; dividends are not included in the index.

The composition of IBEX 35 is checked every six months (June and December) by the Madrid stock exchange “Sociedad de Bolsas S.A”. The Spanish benchmark index includes companies that have the highest trading volume in the period under review and that also meet the following two criteria: firstly, the company's capitalization must be 0.3 percent above the average capitalization of the IBEX 35 and, secondly, the shares should be at least one third of the days under review have been traded.

Technically, the index is a price index that is weighted according to market capitalization (on a free float basis). The index is not adjusted for dividend payments. Corporate actions such as stock splits have no (distorting) influence on the index. The calculation is updated every second during trading hours from 9:00 am to 5:30 pm CET.

In its composition, the IBEX 35 is dominated by the finance, telecommunications and energy sectors. At the end of October 2010, they made up the five largest index members, which together accounted for 68.5 percent of the index's capitalization. These included the former state monopoly Telefónica, the two big banks Banco Santander and BBVA, the utility Iberdrola and the oil company Repsol. Despite this imbalance, the index is used by certificate providers as a base value for numerous products.