Euronext to reshape Amsterdam stock indices

Euronext, the pan-European exchange operator, plans to overhaul the stock indices in Amsterdam, sources familiar with the matter confirmed. The main index, AEX, will expand from 25 to 30 companies, while the small-cap index will shrink, reducing from 25 to 20 companies.

This would be the first expansion of the AEX index since its creation in 1994. The predecessor of the AEX, the EOE index, started in 1983 with just 13 companies. Notable companies included in the AEX include ASML, ING, Philips, and Randstad, some of the largest corporations in the Netherlands.

Sources told Het Financieele Dagblad that Euronext is set to consult stakeholders about the plan until March, with the new structure potentially taking effect as early as June. Euronext, however, declined to comment on the proposal.

In addition to the expansion of the AEX, the small-cap index will undergo a reduction, with the number of companies included in the index being cut to 20 from 25.