Euronext announces 2026 annual review results of the ISEQ® family

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Dublin – 12 March 2026 – Euronext today announced the results of the annual review for the ISEQ 20® and ISEQ 20® Capped, which will be implemented after markets close on Friday 20 March 2026 and will be effective from Monday 23 March 2026. 

 Results of the Annual Review 

 ISEQ 20® 

Inclusion of:  Exclusion of:  
HAMMERSON PLC  GREAT WESTERN MINING CORPORATION PLC

 

ISEQ 20® Capped 

Inclusion of:  Exclusion of:  
HAMMERSON PLC  GREAT WESTERN MINING CORPORATION PLC

 The Independent Supervisor retains the right to change the published selection, for instance in the case of a removal due to a takeover, until the publication of the final data after close of Wednesday 18 March 2026. 

All events taking place after that date will not result in the replacement of any company that may need to be removed from the final index selection. 

 

Review ISEQ® Family 

The ISEQ® is reviewed quarterly (March, June, September, December). The full annual review is in March.  

 

CONTACTS  

MEDIA – mediateam@euronext.com 

Dublin                                                                               Catalina Augspach                                                      +33 6 82 09 99 70  

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About Euronext 
Euronext is the leading European capital market infrastructure, covering the entire capital markets value chain, from listing, trading, clearing, settlement and custody, to solutions for issuers and investors. Euronext runs MTS, one of Europe’s leading electronic fixed income trading markets, and Nord Pool, the European power market. Euronext also provides clearing and settlement services through Euronext Clearing and its Euronext Securities CSDs in Denmark, Italy, Norway and Portugal. In November 2025, Euronext acquired a majority stake in the Athens Stock Exchange (ATHEX), reinforcing its pan-European footprint and further extending its fully integrated market infrastructure with the addition of an exchange, a CSD and a clearing house.

As of February 2026, Euronext’s regulated exchanges in Belgium, France, Greece, Ireland, Italy, the Netherlands, Norway and Portugal host over 1,800 listed issuers with €7 trillion in market capitalisation, a strong blue-chip franchise and the largest global centre for debt and fund listings. With a diverse domestic and international client base, Euronext handles 29% of European lit equity trading. Its products include equities, FX, ETFs, bonds, derivatives, commodities and indices.

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