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/atlassian-corp" target="_blank" data-smartkarma-citation="entities:21026:1" rel="noopener">Atlassian (TEAM US)</a> is expected to be deleted from Nasdaq100 in April 2026 due to low index weighting following a price tumble of ~50% in the last 3 months.</li>
<li>
<a href="https://www.smartkarma.com/entities/sandisk-corp" target="_blank" data-smartkarma-citation="entities:1093:1" rel="noopener">Sandisk Corp (SNDK US)</a> is forecasted to replace <a href="https://www.smartkarma.com/entities/atlassian-corp" target="_blank" data-smartkarma-citation="entities:21026:1" rel="noopener">Atlassian (TEAM US)</a> as it is the highest-ranked non-constituent following a price surge of ~200% in the last 3 months.</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> is now the top addition candidate following the anticipated inclusion of <a href="https://www.smartkarma.com/entities/sandisk-corp" target="_blank" data-smartkarma-citation="entities:1093:1" rel="noopener">Sandisk Corp (SNDK US)</a>.</li>
</ul>



Atlassian (TEAM US) is expected to be deleted from Nasdaq100 in April 2026 due to low index weighting following a price tumble of ~50% in the last 3 months.

Sandisk Corp (SNDK US) is forecasted to replace Atlassian (TEAM US) as it is the highest-ranked non-constituent following a price surge of ~200% in the last 3 months.

Lumentum Holdings (LITE US) is now the top addition candidate following the anticipated inclusion of Sandisk Corp (SNDK US).


Atlassian (TEAM US): Fast-Exit Potential from Nasdaq100 in April 2026

Index Rebalance and Special Situations Coverage, Quiddity Advisors

Anjana Amarasuriya

Index Rebalance and Special Situations Coverage

Quiddity Advisors

Pan-Asia Catalysts/Events

<ul>
<li>The Nasdaq 100 index tracks the 100 largest names listed in the Nasdaq Stock Exchange.</li>
<li>In this insight, we have presented our expectations for ADDs/DELs for the upcoming annual reconstitution in December 2026 and flow expectations for the quarterly weight rebalance in March 2026.</li>
<li>We also discuss the pending Nasdaq methodology consultation/review which, if adopted, could result in multiple Fast Entry ADDs in the next year.</li>
</ul>


The Nasdaq 100 index tracks the 100 largest names listed in the Nasdaq Stock Exchange.
In this insight, we have presented our expectations for ADDs/DELs for the upcoming annual reconstitution in December 2026 and flow expectations for the quarterly weight rebalance in March 2026.
We also discuss the pending Nasdaq methodology consultation/review which, if adopted, could result in multiple Fast Entry ADDs in the next year.


[Quiddity Index] NASDAQ 100 Dec26 Rebal: Early Predictions & Potential Methodology Change

<ul>
<li>The ADDs/DELs for SP500, SP MidCap400, and SP SmallCap600 indices for the March 2026 index rebal event were announced after market close on Friday 6 March 2026. </li>
<li>There are 4 ADD/DELs for the SP 500, all of which will also be added to and deleted from the SP 500 Equal Weight and their corresponding Select Sector indices.</li>
<li>In this insight, we take a look at our final flow expectations for each of these confirmed index changes. We see $26bn of flows, one-way.</li>
</ul>


The ADDs/DELs for SP500, SP MidCap400, and SP SmallCap600 indices for the March 2026 index rebal event were announced after market close on Friday 6 March 2026. 
There are 4 ADD/DELs for the SP 500, all of which will also be added to and deleted from the SP 500 Equal Weight and their corresponding Select Sector indices.
In this insight, we take a look at our final flow expectations for each of these confirmed index changes. We see $26bn of flows, one-way.


Quiddity SP 500 Mar26 Results: Over US$26bn Total One-Way Flows

<ul>
<li>
<a href="https://www.smartkarma.com/entities/vertiv-holdings-co" target="_blank" data-smartkarma-citation="entities:33140:1" rel="noopener">Vertiv Holdings Co (VRT US)</a> and <a href="https://www.smartkarma.com/entities/coherent-corp" target="_blank" data-smartkarma-citation="entities:9518:1" rel="noopener">Coherent (COHR US)</a> are the main candidates for addition, based on high eligibility scores.</li>
<li>
<a href="https://www.smartkarma.com/entities/marvell-technology-inc" target="_blank" data-smartkarma-citation="entities:15837:1" rel="noopener">Marvell Technology (MRVL US)</a> and <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> face reduced conviction due to tech-sector balance.</li>
<li>
<a href="https://www.smartkarma.com/entities/echostar-corp-a" target="_blank" data-smartkarma-citation="entities:3225:1" rel="noopener">Echostar Corp A (SATS US)</a> faces reduced conviction because of earnings and float cap.</li>
</ul>



Vertiv Holdings Co (VRT US) and Coherent (COHR US) are the main candidates for addition, based on high eligibility scores.

Marvell Technology (MRVL US) and Lumentum Holdings (LITE US) face reduced conviction due to tech-sector balance.

Echostar Corp A (SATS US) faces reduced conviction because of earnings and float cap.


S&P500 March 2026 Forecast: VRT, COHR & SATS Leading the Pack

<ul>
<li>The SP 500 index tracks the 500 largest US-listed names and is one of the most highly-tracked indices in the world.</li>
<li>The rankings used for the March 2026 index rebal event will be based on yesterday's (4th March 2026) opening prices. The announcement will be made after the close on Friday.</li>
<li>In this insight, we take a look at our final expectations for ADDs/DELs (along with a tracker of all live spinoff/M&amp;A events which affect the index the next few quarters).</li>
</ul>


The SP 500 index tracks the 500 largest US-listed names and is one of the most highly-tracked indices in the world.
The rankings used for the March 2026 index rebal event will be based on yesterday's (4th March 2026) opening prices. The announcement will be made after the close on Friday.
In this insight, we take a look at our final expectations for ADDs/DELs (along with a tracker of all live spinoff/M&amp;A events which affect the index the next few quarters).


Quiddity Leaderboard SP500/600 Mar26 Rebal: Final Expectations

United States

Lumentum Holdings Inc. operates as a holding company. The Company, through its subsidiaries, supplies optical and photonic products. Lumentum Holdings serves data communications and telecommunications, networking, and life-sciences markets worldwide.

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Lumentum Holdings (LITE US)

Atlassian (TEAM US): Fast-Exit Potential from Nasdaq100 in April 2026

The consultation has concluded, and the fast-exit rule will be removed effective May 2026. As a result, Atlassian (TEAM US) is still expected to be...

Dimitris Ioannidis

[Quiddity Index] NASDAQ 100 Dec26 Rebal: Early Predictions & Potential Methodology Change

SpaceX is on the verge of filing its IPO paperwork, while Nasdaq has yet to announce the outcome of its February 2026 consultation on proposed...

Anjana Amarasuriya

Quiddity SP 500 Mar26 Results: Over US$26bn Total One-Way Flows

The SP500/400/600 review results for March 2026 were announced Friday. We got 2 of the four SP500 ADDs correct (our model defaults to two changes)...

Anjana Amarasuriya

S&P500 March 2026 Forecast: VRT, COHR & SATS Leading the Pack

Announced additions: VRT, COHR, SATS and LITE. Following the announcement, all four are trading higher in after hours by 5.2%, 0.7%, 3.2%, and...

Dimitris Ioannidis

Quiddity Leaderboard SP500/600 Mar26 Rebal: Final Expectations

Final expectations are presented for the S&P500 March 2026 rebalance, with SP 600 DELETEs also presented, which we think represent good trade ideas...

Anjana Amarasuriya

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