The iSTOXX Europe Centenary Select 30 Index selects companies from the STOXX Europe 600 Index that were founded more than 100 years ago. From this list, it selects stocks that are expected to pay dividends within the next month and/or have enough sensitivity to the benchmark.

The monthly selection process includes measures to exclude low liquidity stocks and to limit the number of companies per industry. Constituents are ranked within three groups by ADTV, with each having the same weight, with a cap of 10%.