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US-EU Index Rebalances / Quantitative Researcher

Dimitris Ioannidis

Global Financial Data and Analytics Platform

ORTEX

ORTEX is a global financial data and analytics platform providing real-time securities lending and short interest data, index rebalance data, holdings and insider transactions, trading signals, corporate actions and news,  stock machine learning and factor scores and other analytics. The majority of the data are downloadable and accessible through APIs.

Index Rebalance

<ul>
<li>
<a href="https://www.smartkarma.com/entities/costar-group-inc" target="_blank" data-smartkarma-citation="entities:16907:1" rel="noopener">Costar Group (CSGP US)</a> will be deleted from Nasdaq100 on 15 May 2026 due to the fast-exit rule, which has been implemented for the last time with the old methodology.</li>
<li>
<a href="https://www.smartkarma.com/entities/lumentum-holdings-inc" target="_blank" data-smartkarma-citation="entities:12529:1" rel="noopener">Lumentum Holdings (LITE US)</a> will be added to the index replacing <a href="https://www.smartkarma.com/entities/costar-group-inc" target="_blank" data-smartkarma-citation="entities:16907:1" rel="noopener">Costar Group (CSGP US)</a>.</li>
<li>
<a href="https://www.smartkarma.com/entities/coreweave-inc" target="_blank" data-smartkarma-citation="entities:44471:1" rel="noopener">CoreWeave (CRWV US)</a>, <a href="https://www.smartkarma.com/entities/medline-inc" target="_blank" data-smartkarma-citation="entities:45954:1" rel="noopener">Medline (MDLN US)</a> and <a href="https://www.smartkarma.com/entities/teradyne-inc" target="_blank" data-smartkarma-citation="entities:13088:1" rel="noopener">Teradyne Inc (TER US)</a> are now the top addition candidates to replace the upcoming deletions in June 2026 with the new methodology.</li>
</ul>



Costar Group (CSGP US) will be deleted from Nasdaq100 on 15 May 2026 due to the fast-exit rule, which has been implemented for the last time with the old methodology.

Lumentum Holdings (LITE US) will be added to the index replacing Costar Group (CSGP US).

CoreWeave (CRWV US), Medline (MDLN US) and Teradyne Inc (TER US) are now the top addition candidates to replace the upcoming deletions in June 2026 with the new methodology.


Lumentum (LITE US): Nasdaq100 Inclusion Driven by Costar’s Fast‑Exit