Index Rebalance and Special Situations, Quiddity Advisors

Afridi Reyal

Index Rebalance and Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

Index Rebalance

<ul>
<li>In this insight, we take a look at the potential index changes for F100 and F250 in the run-up to the September 2026 index rebal event.</li>
<li>The base date is tomorrow (1st September 2026) and the official results will be announced after the close on 2nd September 2026. </li>
<li>We expect one change for the F100 index and two other changes for the F250 index. Several names sit close to the border and could change our expectations.</li>
</ul>


In this insight, we take a look at the potential index changes for F100 and F250 in the run-up to the September 2026 index rebal event.
The base date is tomorrow (1st September 2026) and the official results will be announced after the close on 2nd September 2026. 
We expect one change for the F100 index and two other changes for the F250 index. Several names sit close to the border and could change our expectations.


Quiddity Leaderboard F100/F250 Sep26: One More Day to Base Date; Few Final Changes

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.

<ul>
<li>Rosebank Industries (ROSE LN), with a $4.7bn market cap, is the flagship F250 and All-Share forecasted addition following its listing transfer from AIM to Main Market.</li>
<li>
<a href="https://www.smartkarma.com/entities/harbour-energy-plc" target="_blank" data-smartkarma-citation="entities:25251:1" rel="noopener">Harbour Energy (HBR LN)</a> and <a href="https://www.smartkarma.com/entities/ithaca-energy-inc" target="_blank" data-smartkarma-citation="entities:23303:1" rel="noopener">Ithaca Energy (IAE LN)</a> are the main candidates to be added to F100 from F250 replacing <a href="https://www.smartkarma.com/entities/rightmove-plc" target="_blank" data-smartkarma-citation="entities:22116:1" rel="noopener">Rightmove (RMV LN)</a> and <a href="https://www.smartkarma.com/entities/berkeley-group-holdings-plc" target="_blank" data-smartkarma-citation="entities:21837:1" rel="noopener">Berkeley Group (BKG LN)</a>. </li>
<li>Barings Emerging EMEA Opportunities (BEMO LN) and Dialight (DIA LN) are high ADV-impact forecasted additions to SmallCap due to passing liquidity.</li>
</ul>


Rosebank Industries (ROSE LN), with a $4.7bn market cap, is the flagship F250 and All-Share forecasted addition following its listing transfer from AIM to Main Market.

Harbour Energy (HBR LN) and Ithaca Energy (IAE LN) are the main candidates to be added to F100 from F250 replacing Rightmove (RMV LN) and Berkeley Group (BKG LN). 
Barings Emerging EMEA Opportunities (BEMO LN) and Dialight (DIA LN) are high ADV-impact forecasted additions to SmallCap due to passing liquidity.


UK Index Forecasts - Jun26: ROSE Blossoms Into F250 Following Listing Transfer

<ul>
<li>The June 2026 index review results for the F100 and F250 indices were announced yesterday after LSE market close.</li>
<li>There will be three ADDs and DELs for F100 and, separately, six ADDs and DELs for F250.</li>
<li>The Inclusion/Exclusion events will take place at the close of trading on 19th June 2026.</li>
</ul>


The June 2026 index review results for the F100 and F250 indices were announced yesterday after LSE market close.
There will be three ADDs and DELs for F100 and, separately, six ADDs and DELs for F250.
The Inclusion/Exclusion events will take place at the close of trading on 19th June 2026.


Quiddity F100/F250 Jun26 Results: 16/18 Expected ADDs/DELs Correct; 10+ Days to Buy for F250 ADDs

<ul>
<li>In this insight, we take a look at the potential index changes for the F100 and F250 in the run-up to the June 2026 index rebal event.</li>
<li>Our latest estimates suggest there could be four regular changes for F100 and five regular changes for F250 during the June 2026 rebal.</li>
<li>We see three transfers and one new listing being added to the F250 index. Naturally, we expect F250 and FAllShare passive trackers to buy these names.</li>
</ul>


In this insight, we take a look at the potential index changes for the F100 and F250 in the run-up to the June 2026 index rebal event.
Our latest estimates suggest there could be four regular changes for F100 and five regular changes for F250 during the June 2026 rebal.
We see three transfers and one new listing being added to the F250 index. Naturally, we expect F250 and FAllShare passive trackers to buy these names.


Quiddity Leaderboard F100/F250 Jun26: Rosebank and Cordiant as F250 ADDs; 2 Weeks to Base Date

<ul>
<li>In this insight, we take a look at the potential index changes for the F100 and F250 in the run-up to the June 2026 index rebal event.</li>
<li>Our latest estimates suggest there could be one regular change for F100 and two regular changes for F250 during the June 2026 rebal.</li>
<li>
<a href="https://www.smartkarma.com/entities/carnival-plc" target="_blank" data-smartkarma-citation="entities:21869:1" rel="noopener">Carnival (CCL LN)</a> is set to be deleted from F250 on 5th May 2026. Its replacement is being announced today and we have shared our final expectation.</li>
</ul>


In this insight, we take a look at the potential index changes for the F100 and F250 in the run-up to the June 2026 index rebal event.
Our latest estimates suggest there could be one regular change for F100 and two regular changes for F250 during the June 2026 rebal.

Carnival (CCL LN) is set to be deleted from F250 on 5th May 2026. Its replacement is being announced today and we have shared our final expectation.


Quiddity Leaderboard F100/F250 Jun26: Carnival F250 Replacement 5 May; One F100 and Two F250 Changes

United Kingdom

Seraphim Space Investment Trust Plc is a UK-based investment trust that specializes in providing public market investors access to a diversified portfolio of growth-stage space technology companies. It invests in early and growth stage privately financed SpaceTech businesses across sectors such as defence, security, climate, communications, and sustainability. The company was founded in 2021 and is headquartered in London, United Kingdom.

Seraphim Space Investment Trust (SSIT LN)

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Seraphim Space Investment Trust (SSIT LN)

Quiddity Leaderboard F100/F250 Sep26: One More Day to Base Date; Few Final Changes

For F100, easyJet is easily IN and Entain is OUT. Ithica is close to the F100 ADD border. With one more trading day to go, a few changes are...

Afridi Reyal

UK Index Forecasts - Jun26: ROSE Blossoms Into F250 Following Listing Transfer

ROSE LN was the highest-impact trade of the UK index at the June 2026 review with its inclusion to F250 and All-Share following listing transfer to...

Dimitris Ioannidis

Quiddity F100/F250 Jun26 Results: 16/18 Expected ADDs/DELs Correct; 10+ Days to Buy for F250 ADDs

Rosebank and Cordiant are big F250 ADDs for June 2026. New Transfers and listings make up most of the F250 ADDs. Inclusion/Exclusion events set...

Afridi Reyal

Quiddity Leaderboard F100/F250 Jun26: Rosebank and Cordiant as F250 ADDs; 2 Weeks to Base Date

We see F250 and FAllShare passive buying for Rosebank, Cordiant, GlobalData, and Meridian on 19th June 2026. We also expect four changes to F100.

Afridi Reyal

Quiddity Leaderboard F100/F250 Jun26: Carnival F250 Replacement 5 May; One F100 and Two F250 Changes

We see one F100 and two F250 changes. Harbour hovers around the F100 ADD border, while Seraphim and Young &Co sit close to the F250 ADD border.

Afridi Reyal

Price Gauge

52-week Range

Market Cap (USDm)

P/E

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Quiddity Leaderboard F100/F250 Sep26: One More Day to Base Date; Few Final Changes

For F100, easyJet is easily IN and Entain is OUT. Ithica is close to the F100 ADD border. With one more trading day to go, a few changes are...

Afridi Reyal

UK Index Forecasts - Jun26: ROSE Blossoms Into F250 Following Listing Transfer

ROSE LN was the highest-impact trade of the UK index at the June 2026 review with its inclusion to F250 and All-Share following listing transfer to...

Dimitris Ioannidis

Quiddity F100/F250 Jun26 Results: 16/18 Expected ADDs/DELs Correct; 10+ Days to Buy for F250 ADDs

Rosebank and Cordiant are big F250 ADDs for ​June 2026. New Transfers and listings make up most of the F250 ADDs. Inclusion/Exclusion events set...

Afridi Reyal

Quiddity Leaderboard F100/F250 Jun26: Rosebank and Cordiant as F250 ADDs; 2 Weeks to Base Date

We see F250 and FAllShare passive buying for Rosebank, Cordiant, GlobalData, and Meridian on 19th June 2026. We also expect four changes to F100.

Afridi Reyal

Quiddity Leaderboard F100/F250 Jun26: Carnival F250 Replacement 5 May; One F100 and Two F250 Changes

We see one F100 and two F250 changes. Harbour hovers around the F100 ADD border, while Seraphim and Young &Co sit close to the F250 ADD border.

Afridi Reyal

Rosebank and Cordiant are big F250 ADDs for June 2026. New Transfers and listings make up most of the F250 ADDs. Inclusion/Exclusion events set...