Nasdaq Announces Semi-annual Changes to the OMX Helsinki 25® Index

Helsinki, July 24, 2026 — Nasdaq (Nasdaq: NDAQ) announced today the results of the semi-annual review of the OMX Helsinki 25^® Index, (Nasdaq Helsinki: OMXH25^®), which will become effective at market open on Monday, August 3, 2026.

The following securities will be added to the lndex: Bittium Corporation (BITTI).
The OMX Helsinki 25^® Index measures the performance of a selection of the most traded securities listed on Nasdaq Helsinki Ltd. The index is reviewed semi-annually in February and August.

As a result of the semi-annual review, the following securities will be removed from the Index: SSAB AB ser. B (SSABBH).

For a list of current Index Securities please refer to Nasdaq's Global Index Watch.

For more information, please refer to the OMX Helsinki 25 Index Methodology.
 

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Nasdaq Media Contact
Maarit Bystedt
+ +358 (0)50 407 4448
maarit.bystedt@nasdaq.com