The IBEX Small Cap (IBEXS) is a stock market index created by Bolsas y Mercados Españoles (BME) that tracks the performance of small-cap companies listed on the four Spanish stock exchanges that trade through the Sistema de Interconexión Bursátil Español (SIBE). It is a capitalization-weighted index. It consists of the 30 largest companies following those in the IBEX Medium Cap. Its ISIN is ES0SI0000021.
History
On March 1, 2005, Bolsas y Mercados Españoles announced the creation of the IBEX Medium Cap (mid-cap stocks) and IBEX Small Cap (small-cap stocks) indices. Both were officially launched on July 1, 2005.
Component selection
The inclusion or exclusion of stocks in the index's composition is reviewed semiannually based on specific criteria by a group of experts known as the Technical Advisory Committee (Comité Asesor Técnico, CAT), which is responsible for deciding which companies are added or removed. Their regular meetings are held in June and December, and their decisions become effective on the first business day of July and January, respectively. However, extraordinary meetings may be held if circumstances require it. There is no minimum or maximum number of changes that can be made; there may be none or as many as deemed appropriate.
Criteria: Companies must not be part of the IBEX 35 or the IBEX Medium Cap. They must have a free float percentage greater than 15% and an annualized turnover on the actual free float greater than 15%. Free float is defined as the number of shares actually in circulation in the market.
Based on these metrics, a ranking is established; the top 20 eligible stocks are assigned to the IBEX Medium Cap, and the subsequent 30 to the IBEX Small Cap.
Composition
The following table lists the 30 components of the IBEX Small Cap as of September 2026:
Ticker Company Headquarters Sector AI Airtificial Madrid, Madrid Engineering and others ALNT Alantra Madrid, Madrid Financial services EAT AmRest Madrid, Madrid Consumer services ATRY Atrys Health Madrid, Madrid Health care ADX Audax Badalona, Catalonia Renewable energy AZK Azkoyen Peralta, Navarre Engineering and others BKY Berkeley Energía Madrid, Madrid Minerals, metals and transformation CBAV Clínica Baviera Madrid, Madrid Health care OLE Deoleo Rivas-Vaciamadrid, Madrid Food and beverage MDF Duro Felguera Gijón, Asturias Engineering and others ENER Ecoener A Coruña, Galicia Renewable energy EDR eDreams ODIGEO Madrid, Madrid Consumer services ENC Ence Energía y Celulosa Madrid, Madrid Paper and forestry EZE Ezentis Madrid, Madrid Technology and telecommunications GEST Gestamp Automoción Madrid, Madrid Automotive components DOM Global Dominion Access Bilbao, Basque Country Engineering and others GSJ Grupo San José Pontevedra, Galicia Construction IZER Izertis Gijón, Asturias Technology consulting RJF Laboratorio Reig Jofre Sant Joan Despí, Catalonia Pharmaceuticals LGT Lingotes Especiales Valladolid, Castile and León Automotive components NTH Naturhouse Health Madrid, Madrid Food and beverage NXT Nextil Madrid, Madrid Textile, clothing and footwear NEA Nicolás Correa, S.A. Burgos, Castile and León Manufacturing and assembly of capital goods OHLA Obrascón Huarte Lain Madrid, Madrid Construction ORY Oryzon Genomics Madrid, Madrid Pharmaceuticals and biotechnology PRM Prim, S.A. Móstoles, Madrid Health care PSG Prosegur Madrid, Madrid Services CASH Prosegur Cash Madrid, Madrid Services TLGO Talgo Las Rozas, Madrid Manufacturing and assembly of capital goods TUB Tubacex Llodio, Basque Country Manufacturing and assembly of capital goods
References
External links
IBEX Small Cap official profile at BME