Pan-Asia Index Rebalances/ Events/ Delta One, Periscope Analytics

Brian Freitas

Pan-Asia Index Rebalances/ Events/ Delta One

Periscope Analytics

Periscope Analytics focuses on event-driven trades across Asia Pacific and provides comprehensive, timely and systematic coverage of index changes to major Asia Pacific indices in a structured manner.

The analysis includes forecasted inclusions and exclusions to all major Asian indices that have significant amount of tracking assets, including estimates of passive buy/sell flow on the stocks. The service also provides commentary and impact of market consultations, ground rule changes, and other events (IPOs, spin-offs, M&A) that could lead to index changes and passive flow.

Periscope Analytics works with multi-strategy hedge funds, proprietary trading firms, stat arb trading groups and long-only investors that invest and trade in the Asia Pacific region with the data being used to trade index rebalances, avoid pre-positioning and passive flow, and to time entry into and exit from stocks.

Event-Driven Trades Across Asia Pacific

Index Rebalance

<ul>
<li>
<a href="https://www.smartkarma.com/entities/uber-technologies-inc" target="_blank" data-smartkarma-citation="entities:430:1" rel="noopener">Uber Technologies (UBER US)</a>, <a href="https://www.smartkarma.com/entities/jabil-circuit-inc" target="_blank" data-smartkarma-citation="entities:16674:1" rel="noopener">Jabil Circuit (JBL US)</a> and <a href="https://www.smartkarma.com/entities/builders-firstsource-inc" target="_blank" data-smartkarma-citation="entities:4720:1" rel="noopener">Builders Firstsource (BLDR US)</a> will be added to the <a href="https://www.smartkarma.com/entities/s-p-500-index" target="_blank" data-smartkarma-citation="entities:22886:1" rel="noopener">S&amp;P 500 INDEX (SPX INDEX)</a> at the close on 15 December.</li>
<li>There are a bunch of inclusions. deletions and migrations across the <a href="https://www.smartkarma.com/entities/s-p-500-index" target="_blank" data-smartkarma-citation="entities:22886:1" rel="noopener">S&amp;P 500 INDEX (SPX INDEX)</a>, the S&amp;P Midcap 400 Index, and the S&amp;P SmallCap 600 Index.</li>
<li>We estimate passive trackers will need to buy around US$18bn of <a href="https://www.smartkarma.com/entities/uber-technologies-inc" target="_blank" data-smartkarma-citation="entities:430:1" rel="noopener">Uber Technologies (UBER US)</a>. There has been positioning in the stock for just over a month now. </li>
</ul>



Uber Technologies (UBER US), Jabil Circuit (JBL US) and Builders Firstsource (BLDR US) will be added to the S&amp;P 500 INDEX (SPX INDEX) at the close on 15 December.
There are a bunch of inclusions. deletions and migrations across the S&amp;P 500 INDEX (SPX INDEX), the S&amp;P Midcap 400 Index, and the S&amp;P SmallCap 600 Index.
We estimate passive trackers will need to buy around US$18bn of Uber Technologies (UBER US). There has been positioning in the stock for just over a month now. 


US-EU Index Rebalances / Quantitative Researcher, ORTEX

Dimitris Ioannidis

US-EU Index Rebalances / Quantitative Researcher

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.

Alnylam Pharmaceuticals / Index Rebalance

<ul>
<li>
<a href="https://www.smartkarma.com/entities/alnylam-pharmaceuticals-inc" target="_blank" data-smartkarma-citation="entities:2191:1" rel="noopener">Alnylam Pharmaceuticals (ALNY US)</a> just became eligible for S&amp;P500 following positive earnings released on 30 October 2025.</li>
<li>The company's market cap and other eligibility metrics are estimated to place it among the top 5 addition candidates for S&amp;P500 with a higher chance of inclusion in 2026.</li>
<li>Top 3 addition candidates for S&amp;P500 are <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</a>, <a href="https://www.smartkarma.com/entities/comfort-systems-usa-inc" target="_blank" data-smartkarma-citation="entities:6730:1" rel="noopener">FIX</a> and <a href="https://www.smartkarma.com/entities/pure-storage-inc" target="_blank" data-smartkarma-citation="entities:27421:1" rel="noopener">PSTG</a> with the next inclusion expected by the end of November following the Omnicom-Interpublic $13bn acquisition.</li>
</ul>



Alnylam Pharmaceuticals (ALNY US) just became eligible for S&amp;P500 following positive earnings released on 30 October 2025.
The company's market cap and other eligibility metrics are estimated to place it among the top 5 addition candidates for S&amp;P500 with a higher chance of inclusion in 2026.
Top 3 addition candidates for S&amp;P500 are CRH, FIX and PSTG with the next inclusion expected by the end of November following the Omnicom-Interpublic $13bn acquisition.


Alnylam Pharmaceuticals (ALNY US): On Track for S&P500 Inclusion Following Positive Earnings

Pan-Asia Catalysts/Events, Quiddity Advisors

Travis Lundy

Pan-Asia Catalysts/Events

Quiddity Advisors

<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

<ul>
<li>The $25.6bn acquisition of <a href="https://www.smartkarma.com/entities/interpublic-group-of-companies-inc" target="_blank" data-smartkarma-citation="entities:8544:1" rel="noopener">Interpublic Group Of Companies (IPG US)</a> by <a href="https://www.smartkarma.com/entities/omnicom-group" target="_blank" data-smartkarma-citation="entities:15775:1" rel="noopener">Omnicom Group (OMC US)</a> may close by 11 September, with a possible extension if the merger is delayed.</li>
<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 plc (CRH US)</a> is forecasted to be the primary replacement candidate of IPG in S&amp;P500, followed by <a href="https://www.smartkarma.com/entities/cheniere-energy-inc" target="_blank" data-smartkarma-citation="entities:16683:1" rel="noopener">Cheniere Energy (LNG US)</a>.</li>
<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 plc (CRH US)</a> regained eligibility after reporting positive quarterly earnings in August.</li>
</ul>


The $25.6bn acquisition of Interpublic Group Of Companies (IPG US) by Omnicom Group (OMC US) may close by 11 September, with a possible extension if the merger is delayed.

CRH plc (CRH US) is forecasted to be the primary replacement candidate of IPG in S&amp;P500, followed by Cheniere Energy (LNG US).

CRH plc (CRH US) regained eligibility after reporting positive quarterly earnings in August.


CRH (CRH US): Poised for S&P500 Inclusion Amid Positive Earnings and Omnicom–Interpublic Merger

<ul>
<li>The S&amp;P 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 now expect two regular changes in December 2025. There are also multiple live M&amp;A and special situation events likely to trigger intra-review index changes.</li>
</ul>


The S&amp;P 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 now expect two regular changes in December 2025. There are also multiple live M&amp;A and special situation events likely to trigger intra-review index changes.


[Quiddity Index] S&P500/600 Dec25 Rebal: 2 Regular ADDs/DELs + Multiple Intra-Review Changes Coming

United States

Comfort Systems USA, Inc. provides heating, ventilation, and air conditioning system installation, maintenance, repair, and replacement services. The Company's commercial and industrial markets include office buildings, retail centers, apartment complexes, hotels, manufacturing plants, and government facilities.

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Comfort Systems Usa (FIX US)

S&P500 Index Rebalance: Calling an UBER

Passive S&P500 index trackers will need to buy around US$18bn of Uber in two weeks. Positioning in the stock began a month ago and just ahead of Q3...

Brian Freitas

Alnylam Pharmaceuticals (ALNY US): On Track for S&P500 Inclusion Following Positive Earnings

After several extensions, Omnicom and IPG have just confirmed that the European Commission has granted antitrust approval for the acquisition,...

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

CRH (CRH US): Poised for S&P500 Inclusion Amid Positive Earnings and Omnicom–Interpublic Merger

After multiple extensions since September, Omnicom now confidently expects to complete its acquisition of Interpublic by the end of November, as...

Dimitris Ioannidis

[Quiddity Index] S&P500/600 Dec25 Rebal: 2 Regular ADDs/DELs + Multiple Intra-Review Changes Coming

The Dec25 SP500 rebal season threatens to be quite active. We now see two normal changes and a few intra-review changes are possible, which means...

Travis Lundy

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