Index Rebal/Special Situations, Quiddity Advisors

Janaghan Jeyakumar, CFA

Index Rebal/Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

Index Rebalance

Qi An Xin Technology Group  / Index Rebalance

<ul>
<li>STAR 50 Index is a tech-focused, blue-chip index in Mainland China which tracks the top 50 largest and most liquid names in the STAR market of the Shanghai Stock Exchange.</li>
<li>STAR 100 index tracks the next 100 names (51st-150th ranks) and it represents the mid-cap segment of the STAR market.</li>
<li>In this insight, we take a look at the potential ADDs/DELs for the STAR 50 and STAR 100 indices for the September 2025 index rebal event.</li>
</ul>


STAR 50 Index is a tech-focused, blue-chip index in Mainland China which tracks the top 50 largest and most liquid names in the STAR market of the Shanghai Stock Exchange.
STAR 100 index tracks the next 100 names (51st-150th ranks) and it represents the mid-cap segment of the STAR market.
In this insight, we take a look at the potential ADDs/DELs for the STAR 50 and STAR 100 indices for the September 2025 index rebal event.


Quiddity Leaderboard STAR 50/100 Sep25: Some High-Impact Names; New Sector-Neutral Pair Trade Ideas

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

Xiamen Amoytop Biotech Co Ltd / Index Rebalance

Xiamen Amoytop Biotech Co Ltd (688278 CH)

<ul>
<li>There are 3 constituent changes for the <a href="https://www.smartkarma.com/entities/sse-science-and-technology-innovation-board-50-index" target="_blank" data-smartkarma-citation="entities:29279:1" rel="noopener">STAR50 INDEX</a> and 6 changes for the STAR100 Index at the March rebalance that will be implemented at the close on 14 March.</li>
<li>The last-minute methodology change could lead to under/over positioning on some names and those stocks could move the most over the next few days.</li>
<li>Performance has been mixed in the changes to the <a href="https://www.smartkarma.com/entities/sse-science-and-technology-innovation-board-50-index" target="_blank" data-smartkarma-citation="entities:29279:1" rel="noopener">STAR50 INDEX</a> but the outright adds have continued to outperform the outright deletes for the STAR100 Index.</li>
</ul>


There are 3 constituent changes for the STAR50 INDEX and 6 changes for the STAR100 Index at the March rebalance that will be implemented at the close on 14 March.
The last-minute methodology change could lead to under/over positioning on some names and those stocks could move the most over the next few days.
Performance has been mixed in the changes to the STAR50 INDEX but the outright adds have continued to outperform the outright deletes for the STAR100 Index.


STAR50/STAR100 Index Rebalance: Methodology Changes & Some Surprises

<ul>
<li>STAR 100 index tracks the next 100 names (51st-150th ranks) and it represents the mid-cap segment of the STAR market.</li>
<li>The methodology for constituent selection for this index was revised yesterday. These revisions will influence the ADDs/DELs for the March 2025 review which is to be announced soon.</li>
<li>In this insight, we have presented our updated expectations for the new methodology.</li>
</ul>


STAR 100 index tracks the next 100 names (51st-150th ranks) and it represents the mid-cap segment of the STAR market.
The methodology for constituent selection for this index was revised yesterday. These revisions will influence the ADDs/DELs for the March 2025 review which is to be announced soon.
In this insight, we have presented our updated expectations for the new methodology.


STAR 100: Quick Update to Expectations for Last-Minute Methodology Changes; Announcement Soon.

Shanghai Allist Pharmaceuticals / Index Rebalance

Shanghai Allist Pharmaceuticals (688578 CH)

<ul>
<li>With the review period complete, we forecast 3 changes for the <a href="https://www.smartkarma.com/entities/sse-science-and-technology-innovation-board-50-index" target="_blank" data-smartkarma-citation="entities:29279:1" rel="noopener">SSE STAR50 (STAR50 INDEX)</a> and 8 changes for the STAR100 Index. There are a few migrations between the indices.</li>
<li>We estimate turnover of 3.8% for the <a href="https://www.smartkarma.com/entities/sse-science-and-technology-innovation-board-50-index" target="_blank" data-smartkarma-citation="entities:29279:1" rel="noopener">SSE STAR50 (STAR50 INDEX)</a> and 9.9% for the STAR100 Index. The estimated net round-trip trade is CNY 13bn (US$1.8bn).</li>
<li>The forecast adds to the <a href="https://www.smartkarma.com/entities/sse-science-and-technology-innovation-board-50-index" target="_blank" data-smartkarma-citation="entities:29279:1" rel="noopener">STAR50 INDEX</a> have underperformed the forecast deletes. For the STAR100 Index outright changes, the forecast adds have outperformed the forecast deletes by a lot.</li>
</ul>


With the review period complete, we forecast 3 changes for the SSE STAR50 (STAR50 INDEX) and 8 changes for the STAR100 Index. There are a few migrations between the indices.
We estimate turnover of 3.8% for the SSE STAR50 (STAR50 INDEX) and 9.9% for the STAR100 Index. The estimated net round-trip trade is CNY 13bn (US$1.8bn).
The forecast adds to the STAR50 INDEX have underperformed the forecast deletes. For the STAR100 Index outright changes, the forecast adds have outperformed the forecast deletes by a lot.


STAR50/STAR100 Index Rebalance Preview: One Is Meh; The Other Is👍

<ul>
<li>95% of the way through the review period, there could be 3 changes for the <a href="https://www.smartkarma.com/entities/sse-science-and-technology-innovation-board-50-index" target="_blank" data-smartkarma-citation="entities:29279:1" rel="noopener">SSE STAR50 (STAR50 INDEX)</a> and 8 changes for the STAR100 Index.</li>
<li>We estimate turnover of 4.1% for the <a href="https://www.smartkarma.com/entities/sse-science-and-technology-innovation-board-50-index" target="_blank" data-smartkarma-citation="entities:29279:1" rel="noopener">STAR50 INDEX</a> and 9.3% for the STAR100 Index. The net round-trip trade is CNY 14.1bn (US$1.9bn).</li>
<li>The forecast adds to the <a href="https://www.smartkarma.com/entities/sse-science-and-technology-innovation-board-50-index" target="_blank" data-smartkarma-citation="entities:29279:1" rel="noopener">STAR50 INDEX</a> have outperformed the forecast deletes with steady outperformance over the last 3 months; the performance for the STAR100 Index is a lot better.</li>
</ul>


95% of the way through the review period, there could be 3 changes for the SSE STAR50 (STAR50 INDEX) and 8 changes for the STAR100 Index.
We estimate turnover of 4.1% for the STAR50 INDEX and 9.3% for the STAR100 Index. The net round-trip trade is CNY 14.1bn (US$1.9bn).
The forecast adds to the STAR50 INDEX have outperformed the forecast deletes with steady outperformance over the last 3 months; the performance for the STAR100 Index is a lot better.


STAR50/STAR100 Index Rebalance Preview: Migrations & Outright Changes Lead to Outperformance

China

Wuhan Dameng Database Company Limited operates as a database product developer. The Company develops database software, cluster software, cloud computing software, and big data analysis platform. Wuhan Dameng Database provides its products for bank, state grid, telecommunication, and other fields.

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Wuhan Dameng Database (688692 CH)

Quiddity Leaderboard STAR 50/100 Sep25: Some High-Impact Names; New Sector-Neutral Pair Trade Ideas

Qi An Xin Technology Group (688561 CH) is a high-conviction DEL with ~6x ADV to sell. It could underperform peers over the next few weeks.

Janaghan Jeyakumar, CFA

STAR50/STAR100 Index Rebalance: Methodology Changes & Some Surprises

There are 3/6 changes for the STAR50/100 indices. Methodology changes result in a few surprises. The STAR50 adds/deletes have performed in line,...

Brian Freitas

STAR 100: Quick Update to Expectations for Last-Minute Methodology Changes; Announcement Soon.

A couple of names that were listed in the last 12 months are no longer STAR 100 expected ADDs. As a result, there are some changes to our STAR 100...

Janaghan Jeyakumar, CFA

STAR50/STAR100 Index Rebalance Preview: One Is Meh; The Other Is👍

Over the last 3 weeks, the outright adds to the STAR50 and STAR100 indices have underperformed the outright deletes by 6.36% in both cases....

Brian Freitas

STAR50/STAR100 Index Rebalance Preview: Migrations & Outright Changes Lead to Outperformance

There could be 16 changes across the STAR50/100 in March with passives trading nearly US$2bn round-trip. The forecast adds have outperformed the...

Brian Freitas

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