Euronext announces September 2026 results of the OBX® Family

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Oslo – 9 September 2026 Euronext today announced the results of the September 2026 review for the OBX® family including the OBX®, OSEBX®, OSEFX® and the OBX® ESG. Changes will be implemented after markets close on Friday 18 September and will be effective from Monday 21 September. 

 

Results of the September Review

OBX®

Inclusion of: Exclusion of: 
AKER BAKKAFROST
BLUENORD DOF GROUP
TGS PROTECTOR FORSIKRING
  WALLENIUS WILHELMSEN

 

OSEBX®

Inclusion of: Exclusion of: 
BLUENORD CLOUDBERRY CLEAN ENERGY
CIRCIO HOLDING PPI PUBLIC PROPERTY INVEST

 

OSEFX®

Inclusion of: Exclusion of: 
BLUENORD CLOUDBERRY CLEAN ENERGY
CIRCIO HOLDING PPI PUBLIC PROPERTY INVEST

 

OBX® ESG

Inclusion of: Exclusion of: 
B2 IMPACT KONGSBERG GRUPPEN
CONSTELLATION OIL SERVICES HOLDING KONGSBERG MARITIME
  YARA INTERNATIONAL

 

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 16 September 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 OBX® Family

The indices in the OBX® family are semi-annually revised, free float adjusted with composition changes and capping implemented after the market close of the third Friday of March and September.

Rulebooks for the OBX family are available at: live.euronext.com/nb/products-indices/index-rules

Next OBX Index Steering Committee Review: 10 March 2027

 

 

 

CONTACTS  

MEDIA – mediateam@euronext.com 
Norway Cathrine Lorvik Segerlund +47 41 69 59 10 
     
Download press release - September 2026 review of OBX family

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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 June 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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