US-EU Index & Corporate Actions Analyst, ORTEX

Harry Kalfas

US-EU Index & Corporate Actions Analyst

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

Solstice Advanced Materials / Index Rebalance

<ul>
<li>
<a href="https://www.smartkarma.com/entities/honeywell-international-inc" target="_blank" data-smartkarma-citation="entities:16765:1" rel="noopener">Honeywell International (HON US)</a> has completed the spin-off of <a href="https://www.smartkarma.com/entities/solstice-advanced-materials" target="_blank" data-smartkarma-citation="entities:45953:1" rel="noopener">Solstice Advanced Materials (SOLS US)</a>.</li>
<li>
<a href="https://www.smartkarma.com/entities/solstice-advanced-materials" target="_blank" data-smartkarma-citation="entities:45953:1" rel="noopener">Solstice Advanced Materials (SOLS US)</a> began trading on Nasdaq on October 30, 2025.</li>
<li>Significant index implications across US and Global indices, both intra-quarter and at upcoming reviews.</li>
</ul>



Honeywell International (HON US) has completed the spin-off of Solstice Advanced Materials (SOLS US).

Solstice Advanced Materials (SOLS US) began trading on Nasdaq on October 30, 2025.
Significant index implications across US and Global indices, both intra-quarter and at upcoming reviews.


Honeywell Spins Off Solstice Advanced Materials: Significant Index Implications Triggered

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 SP 500 index tracks the 500 largest names listed in the US and it is one of the most highly-tracked indices in the world.</li><li>In this insight, we take a look at the upcoming constituent changes in the run up to the December 2025 index rebal event.</li><li>The index changes for the December 2025 rebal will be based on the open of 3rd December 2025 and announced after the close of 5th December 2025.</li></ul>

The SP 500 index tracks the 500 largest names listed in the US and it is one of the most highly-tracked indices in the world.In this insight, we take a look at the upcoming constituent changes in the run up to the December 2025 index rebal event.The index changes for the December 2025 rebal will be based on the open of 3rd December 2025 and announced after the close of 5th December 2025.

Quiddity Leaderboard SP500/600 Dec25 Rebal: Last Minute Surprise in The Leading Names

US-EU Index Rebalances / Quantitative Researcher, ORTEX

Dimitris Ioannidis

US-EU Index Rebalances / Quantitative Researcher

<ul>
<li>
<a href="https://www.smartkarma.com/entities/crh-plc-054117b2-cd70-470a-9efc-8f6fab2c83ec" target="_blank" data-smartkarma-citation="entities:28655:1" rel="noopener">CRH (CRH US)</a> and <a href="https://www.smartkarma.com/entities/comfort-systems-usa-inc" target="_blank" data-smartkarma-citation="entities:6730:1" rel="noopener">Comfort Systems USA (FIX US)</a> are the main candidates for addition due to consistently high eligibility scores.</li>
<li>
<a href="https://www.smartkarma.com/entities/pure-storage-inc" target="_blank" data-smartkarma-citation="entities:27421:1" rel="noopener">Pure Storage Inc (PSTG US)</a> and <a href="https://www.smartkarma.com/entities/solstice-advanced-materials" target="_blank" data-smartkarma-citation="entities:45953:1" rel="noopener">Solstice Advanced Materials (SOLS US)</a> face reduced conviction due to sector balance and turnover.</li>
<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> has a higher probability of inclusion following the acquisition of <a href="https://www.smartkarma.com/entities/kellogg-co" target="_blank" data-smartkarma-citation="entities:16090:1" rel="noopener">Kellogg Co (K US)</a> which is still pending.</li>
</ul>



CRH (CRH US) and Comfort Systems USA (FIX US) are the main candidates for addition due to consistently high eligibility scores.

Pure Storage Inc (PSTG US) and Solstice Advanced Materials (SOLS US) face reduced conviction due to sector balance and turnover.

Vertiv Holdings Co (VRT US) has a higher probability of inclusion following the acquisition of Kellogg Co (K US) which is still pending.


S&P500 December 2025 Final Forecast: FIX & CRH Leading the Pack

Pan-Asia Catalysts/Events, Quiddity Advisors

Travis Lundy

<ul>
<li>The SP 500 index tracks the 500 largest names listed in the US and it is one of the most highly-tracked indices in the world.</li>
<li>In this insight, we take a look at the upcoming constituent changes in the run up to the December 2025 index rebal event.</li>
<li>We expect two regular changes in December 2025. There are also multiple live M&amp;A events which are likely to trigger intra-review index changes.</li>
</ul>


The SP 500 index tracks the 500 largest names listed in the US and it is one of the most highly-tracked indices in the world.
In this insight, we take a look at the upcoming constituent changes in the run up to the December 2025 index rebal event.
We expect two regular changes in December 2025. There are also multiple live M&amp;A events which are likely to trigger intra-review index changes.


[Quiddity Index] SP500/600 Dec25 Rebal: Two ADDs Two DELs and 3 Intra-Review Changes Likely Soon

Founder at Stock Spin-off Investing, Stock Spin-Off Investing

Richard Howe

Founder at Stock Spin-off Investing

Stock Spin-Off Investing

Generate attractive returns by taking advantage of inefficiencies in the stock spin-off market.

Stock Spin-offs

Event-Driven

<ul><li>This week we had a busy week of earnings (WDC, AAF, LBTYA), and it will continue next week.</li><li>Honeywell (HON)  spun off 100% of its Advanced Materials business, Solstice (SOLS), on October 30, 2025.</li><li><p>Solstice was added to the S&amp;P 500 and performed well on its first day of trading before selling off on Friday.</p><figure class="editor-figure mceNonEditable"></figure></li></ul>

This week we had a busy week of earnings (WDC, AAF, LBTYA), and it will continue next week.Honeywell (HON)  spun off 100% of its Advanced Materials business, Solstice (SOLS), on October 30, 2025.Solstice was added to the S&amp;P 500 and performed well on its first day of trading before selling off on Friday.

United States

Solstice Advanced Materials is a leading specialty materials company that advances science to achieve smarter outcomes with high-performance solutions across refrigerants, semiconductor materials, protective fibers, healthcare packaging, and more. Backed by deep technical expertise across critical industries, we are recognized as a global market leader that partners with customers to solve complex challenges in high-value applications.

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Solstice Advanced Materials (SOLS US)

Honeywell Spins Off Solstice Advanced Materials: Significant Index Implications Triggered

Honeywell spins off Solstice Advanced Materials (SOLS US), now trading on Nasdaq. The move enables Solstice to focus on growth while triggering...

Harry Kalfas

Quiddity Leaderboard SP500/600 Dec25 Rebal: Last Minute Surprise in The Leading Names

SP500 rankings will be decided at today's open and announced on 5 December after the close. We see $100bn to trade across the SP500 complex. Kalshi...

Anjana Amarasuriya

S&P500 December 2025 Final Forecast: FIX & CRH Leading the Pack

CRH and FIX are top candidates for addition in December 2025, while PSTG and SOLS face reduced conviction. VRT has a higher chance of inclusion...

Dimitris Ioannidis

[Quiddity Index] SP500/600 Dec25 Rebal: Two ADDs Two DELs and 3 Intra-Review Changes Likely Soon

SP500 could see two changes in Dec25. One has a lot to buy if chosen. There are also a few intra-review actions/changes scheduled for the near...

Travis Lundy

Weekly Update (WDC, AAF, LBTYA, LEN)

This week we had a busy week of earnings (WDC, AAF, LBTYA), and it will continue next week. Honeywell (HON) spun off 100% of its Advanced Materials...

Richard Howe

Price Gauge

52-week Range

Market Cap (USDm)

P/E

Dividend (Yield)

Honeywell Spins Off Solstice Advanced Materials: Significant Index Implications Triggered

Honeywell spins off Solstice Advanced Materials (SOLS US), now trading on Nasdaq. The move enables Solstice to focus on growth while triggering...

Harry Kalfas

Quiddity Leaderboard SP500/600 Dec25 Rebal: Last Minute Surprise in The Leading Names

SP500 rankings will be decided at today's open and announced on 5 December after the close. We see $100bn to trade across the SP500 complex. Kalshi...

Anjana Amarasuriya

S&P500 December 2025 Final Forecast: FIX & CRH Leading the Pack

​CRH and FIX are top candidates for addition in December 2025, while PSTG and SOLS face reduced conviction. VRT has a higher chance of inclusion...

Dimitris Ioannidis

[Quiddity Index] SP500/600 Dec25 Rebal: Two ADDs Two DELs and 3 Intra-Review Changes Likely Soon

SP500 could see two changes in Dec25. One has a lot to buy if chosen. There are also a few intra-review actions/changes scheduled for the near...

Travis Lundy

Weekly Update (WDC, AAF, LBTYA, LEN)

This week we had a busy week of earnings (WDC, AAF, LBTYA), and it will continue next week. Honeywell (HON) spun off 100% of its Advanced Materials...

Richard Howe

CRH and FIX are top candidates for addition in December 2025, while PSTG and SOLS face reduced conviction. VRT has a higher chance of inclusion...