Index Rebalance and Special Situations, Quiddity Advisors

Afridi Reyal

Index Rebalance and Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

Index Rebalance

Serica Energy is a UK-based independent upstream oil and gas company with operations focused on the UK North Sea. It specializes in identifying, acquiring, exploiting, and producing oil and gas reserves, managing a portfolio of energy fields to extract hydrocarbons. The company operates assets such as the Bruce, Keith, and Rhum fields in the UK Northern North Sea, as well as the Columbus Field, Triton FPSO, and Mansell field in the Central North Sea. Headquartered in London, United Kingdom, the company was founded in 2004.

<ul>
<li>In this insight, we look at the potential index changes for the F100 and F250 in the run-up to the December 2026 rebal.</li>
<li>We currently expect one F100 change and two F250 changes for the December 2026 rebal. An IPO drives the F100 change, while one F250 change depends on a market transfer.</li>
<li>We also expect one intra-review change for the F250 prior to the December 2026 rebal.</li>
</ul>


In this insight, we look at the potential index changes for the F100 and F250 in the run-up to the December 2026 rebal.
We currently expect one F100 change and two F250 changes for the December 2026 rebal. An IPO drives the F100 change, while one F250 change depends on a market transfer.
We also expect one intra-review change for the F250 prior to the December 2026 rebal.


Quiddity Leaderboard F100/F250 Dec26: Airtel Money IPO and Serica Transfer in Focus

Societe Generale SA attracts deposits and offers commercial, retail, investment, and private banking services.  The Bank offers consumer credit, vehicle lease financing, information technology equipment leasing, life and non-life insurance, custodian services, trade and project financing, currency exchange, treasury services, and financial and commodities futures brokerage services.

<ul>
<li>The ES50 Index is one of the most highly-tracked European indices and the annual index review takes place in September every year.</li>
<li>The results of the market consultation were announced on 2nd October 2026, and three methodology changes will be phased in between September 2027 and September 2029.</li>
<li>There could be 3 ADDs and 3 DELs to the index if the supersector coverage removal were applied to the latest rankings.</li>
</ul>


The ES50 Index is one of the most highly-tracked European indices and the annual index review takes place in September every year.
The results of the market consultation were announced on 2nd October 2026, and three methodology changes will be phased in between September 2027 and September 2029.
There could be 3 ADDs and 3 DELs to the index if the supersector coverage removal were applied to the latest rankings.


Quiddity ES50 Sep27: Market Consultation Impact; Supersector Test Over; Big Names In by 2029

Index Rebalance and Special Situations Coverage, Quiddity Advisors

Anjana Amarasuriya

Index Rebalance and Special Situations Coverage

Moderna, Inc. operates as a biotechnology company. The Company focuses on the discovery and development of messenger RNA therapeutics and vaccines. Moderna develops mRNA medicines for infectious, immuno-oncology, and cardiovascular diseases.

<ul>
<li>The Nasdaq 100 index tracks the 100 largest names listed on 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.</li>
<li>We expect threes changes at the December index rebal event and no intra-review changes before then.</li>
</ul>


The Nasdaq 100 index tracks the 100 largest names listed on the Nasdaq Stock Exchange.
In this insight, we have presented our expectations for ADDs/DELs for the upcoming annual reconstitution in December 2026.
We expect threes changes at the December index rebal event and no intra-review changes before then.


Quiddity Leaderboard Nasdaq100 Dec26 Rebal: 3 ADDs/DELs; US$42bn One-Way Flow

Van Lanschot Kempen N.V. provides banking and financial services. The Company offers private banking, investment, finance, mortgages, insurance, equity management, and charity services. Van Lanschot Kempen serves customers worldwide.

<ul>
<li>The SE600 index is one of the most widely followed benchmark indices in Europe. It also acts as a universe for some highly tracked indices.</li>
<li>In this insight, we consider potential index changes that could take place in the December 2026 rebal, along with many M&amp;A deals that could trigger intra-review changes.</li>
<li>We discuss around seven intra-review index changes likely to take place on or before 4Q 2026 and three regular changes during the December 2026 rebal.</li>
</ul>


The SE600 index is one of the most widely followed benchmark indices in Europe. It also acts as a universe for some highly tracked indices.
In this insight, we consider potential index changes that could take place in the December 2026 rebal, along with many M&amp;A deals that could trigger intra-review changes.
We discuss around seven intra-review index changes likely to take place on or before 4Q 2026 and three regular changes during the December 2026 rebal.


Quiddity Leaderboard SE600 Dec26: Multiple Intra-Review Changes Likely

<ul>
<li>The Nasdaq 100 index tracks the 100 largest names listed on the Nasdaq Stock Exchange.</li>
<li>We expect no changes for the September 2026 index rebal event, though SpaceX's free-float increase should still drive roughly US$13bn of one-way flow.</li>
<li>We expect three ADDs and four DELs at the December 2026 annual reconstitution, with DELs necessarily exceeding ADDs by one to bring member count back to 100.</li>
</ul>


The Nasdaq 100 index tracks the 100 largest names listed on the Nasdaq Stock Exchange.
We expect no changes for the September 2026 index rebal event, though SpaceX's free-float increase should still drive roughly US$13bn of one-way flow.
We expect three ADDs and four DELs at the December 2026 annual reconstitution, with DELs necessarily exceeding ADDs by one to bring member count back to 100.


Quiddity Leaderboard Nasdaq100 Sep26 Rebal: Still No Changes in September

US/EU Index Events
Index Rebalance and Events

Quiddity Leaderboard F100/F250 Dec26: Airtel Money IPO and Serica Transfer in Focus

Airtel Money could become a strong name for the F100 inclusion in December 2026. We also see Serica Energy as an F250 ADD if it transfers to the...

Afridi Reyal

Quiddity ES50 Sep27: Market Consultation Impact; Supersector Test Over; Big Names In by 2029

Removing the supersector rule is a HUGE change to the index. Société Générale, ASM International and Assicurazioni Generali are the biggest...

Afridi Reyal

Quiddity Leaderboard Nasdaq100 Dec26 Rebal: 3 ADDs/DELs; US$42bn One-Way Flow

Moderna replacing WBD is the last expected intra-review change before December. The annual reconstitution should bring three more Nasdaq-100...

Anjana Amarasuriya

Quiddity Leaderboard SE600 Dec26: Multiple Intra-Review Changes Likely

SE600 members Beazley and Schroders will be deleted from the index after today's close. We expect Vontobel (VONN SW) and B&M European Value Retail...

Afridi Reyal

Quiddity Leaderboard Nasdaq100 Sep26 Rebal: Still No Changes in September

Paramount Skydance (PSKY US) will move its listing to the NYSE on 6 October 2026, and following its 21 September settlement, its acquisition of WBD...

Anjana Amarasuriya