Index Rebal/Special Situations, Quiddity Advisors

Janaghan Jeyakumar, CFA

Index Rebal/Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

Index Rebalance

Huadian New Energy Group / Index Rebalance

<ul>
<li>CSI 300 represents the 300 largest stocks by market cap and liquidity from the Shanghai and Shenzhen Exchanges. CSI 500 is the next 500 names.</li>
<li>In this insight, we have presented our final expectations for ADDs and DELs for the upcoming semiannual index rebal event in December 2025.</li>
<li>We expect 11 ADDs/DELs for the CSI 300 index and 50 ADDs/DELs for the CSI 500 index during this index review based on the latest available data. US$11bn total flows.</li>
</ul>


CSI 300 represents the 300 largest stocks by market cap and liquidity from the Shanghai and Shenzhen Exchanges. CSI 500 is the next 500 names.
In this insight, we have presented our final expectations for ADDs and DELs for the upcoming semiannual index rebal event in December 2025.
We expect 11 ADDs/DELs for the CSI 300 index and 50 ADDs/DELs for the CSI 500 index during this index review based on the latest available data. US$11bn total flows.


Quiddity Leaderboard CSI 300/​​500 Dec25: Final Expectations; Huge Flows

Asia Pac ECM and Index Rebal, Shenton Research

Ke Yan, CFA, FRM

Asia Pac ECM and Index Rebal

Asia Pac IPO & Placement Research, China Biotech

DZT Research

DZT Research is an independent Asia Pacific equity specialist. Our quantitative research covers index rebalancing flows, alongside exchange data analytics accross Asia Pacific. On the equity capital markets side, we focus on Asia Pacific ECM, especially biotech and TMT. Our lead analyst is frequently cited by international media.

Quantitative Analysis

<ul>
<li>We analysed the earning revision of component stocks of CSI 300 in the past month.</li>
<li>We tabulated stocks with the top impact on index's EPS, stocks' EPS revision, and revenue revision.</li>
<li>We highlighted EPS revision on ABC, ZHONGJI INNOLIGHT, PING AN INSURANCE, SUZHOU DONGSHAN PRECISION MANUFACTURING, GUANGZHOU AUTOMOBILE, Xinjiang Daqo, JIANGSU ZHONGTIAN TECHNOLOGY, NATIONAL SILICON INDUSTRY.</li>
</ul>


We analysed the earning revision of component stocks of CSI 300 in the past month.
We tabulated stocks with the top impact on index's EPS, stocks' EPS revision, and revenue revision.
We highlighted EPS revision on ABC, ZHONGJI INNOLIGHT, PING AN INSURANCE, SUZHOU DONGSHAN PRECISION MANUFACTURING, GUANGZHOU AUTOMOBILE, Xinjiang Daqo, JIANGSU ZHONGTIAN TECHNOLOGY, NATIONAL SILICON INDUSTRY.


CSI 300 Index Earning Revision (Dec): ABC, ZHONGJI INNOLIGHT, PING AN INSURANCE

<ul>
<li>The December 2025 index review results for China's CSI 300 and CSI 500 indices were announced after market close on Friday 28th November 2025.</li>
<li>There will be 11 ADDs/DELs for CSI 300 and 50 ADDs/DELs for CSI 500.</li>
<li>The CSI 300 and CSI 500 index rebal events could trigger US$5.3bn and US$4.2bn in one-way flows respectively.</li>
</ul>


The December 2025 index review results for China's CSI 300 and CSI 500 indices were announced after market close on Friday 28th November 2025.
There will be 11 ADDs/DELs for CSI 300 and 50 ADDs/DELs for CSI 500.
The CSI 300 and CSI 500 index rebal events could trigger US$5.3bn and US$4.2bn in one-way flows respectively.


Quiddity CSI 300/​​500 Dec25 Results: 90% Hit Rate (110/121 Correct); US$9.5bn Combined One-Way Flow

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

Dawning Information Industry C / Index Rebalance

Dawning Information Industry C (603019 CH)

<ul>
<li>There are 4 constituent changes for the <a href="https://www.smartkarma.com/entities/shanghai-stock-exchange-sse-50-a-share-index" target="_blank" data-smartkarma-citation="entities:31073:1" rel="noopener">SSE50 Index (SSE50 INDEX)</a> that will be implemented at the close on 12 December.</li>
<li>
<a href="https://www.smartkarma.com/entities/dawning-information-industry-c" target="_blank" data-smartkarma-citation="entities:25380:1" rel="noopener">Dawning Information Industry C (603019 CH)</a> is a surprise add given the upcoming merger with <a href="https://www.smartkarma.com/entities/hygon-information-technology-c" target="_blank" data-smartkarma-citation="entities:36366:1" rel="noopener">Hygon Information Technology C (688041 CH)</a>. </li>
<li>The <a href="https://www.smartkarma.com/entities/shanghai-stock-exchange-sse-50-a-share-index" target="_blank" data-smartkarma-citation="entities:31073:1" rel="noopener">SSE50 Index</a> adds have underperformed the deletes over the last couple of months and there could be outperformance from here as positioning builds ahead of the implementation of the changes.</li>
</ul>


There are 4 constituent changes for the SSE50 Index (SSE50 INDEX) that will be implemented at the close on 12 December.

Dawning Information Industry C (603019 CH) is a surprise add given the upcoming merger with Hygon Information Technology C (688041 CH). 
The SSE50 Index adds have underperformed the deletes over the last couple of months and there could be outperformance from here as positioning builds ahead of the implementation of the changes.


SSE50 Index Rebalance: 4 Changes a Side & US$2.2bn Trade

Kuang-Chi Technologies   / Index Rebalance

<ul>
<li>There are 11 changes for the <a href="https://www.smartkarma.com/entities/shanghai-shenzhen-csi-300-index" target="_blank" data-smartkarma-citation="entities:22906:1" rel="noopener">Shanghai Shenzhen CSI 300 Index (SHSZ300 INDEX)</a> with implementation taking place at the close on 12 December.</li>
<li>Nearly all the changes are in line with forecasts. <a href="https://www.smartkarma.com/entities/jiangsu-zhongtian-technologies-co-ltd" target="_blank" data-smartkarma-citation="entities:12699:1" rel="noopener">Jiangsu Zhongtian Technologies Co, Ltd. (600522 CH)</a> is the one surprise addition.</li>
<li>The adds outperformed the deletes and the <a href="https://www.smartkarma.com/entities/shanghai-shenzhen-csi-300-index" target="_blank" data-smartkarma-citation="entities:22906:1" rel="noopener">CSI300</a> from June-September but have given back a chunk of the gains since then. Expect positioning to build over the next few days.</li>
</ul>


There are 11 changes for the Shanghai Shenzhen CSI 300 Index (SHSZ300 INDEX) with implementation taking place at the close on 12 December.
Nearly all the changes are in line with forecasts. Jiangsu Zhongtian Technologies Co, Ltd. (600522 CH) is the one surprise addition.
The adds outperformed the deletes and the CSI300 from June-September but have given back a chunk of the gains since then. Expect positioning to build over the next few days.


CSI300 Index Rebalance: 11 Changes & US$7.77bn Trade

China

Huadian New Energy Group Co. Ltd. conducts power businesses. The Company offers wind and solar power generation, transmission, distribution, and other services. Huadian New Energy Group also provides project supervision services.

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Huadian New Energy Group (600930 CH)

Quiddity Leaderboard CSI 300/500 Dec25: Final Expectations; Huge Flows

The CSI 300 index rebalance could cause US$5.5bn in one-way flows while the CSI 500 index rebalance could result in US$4.3bn in one-way flows...

Janaghan Jeyakumar, CFA

CSI 300 Index Earning Revision (Dec): ABC, ZHONGJI INNOLIGHT, PING AN INSURANCE

We analyzed CSI 300's consensus for Dec 2025 and highlighted changes of EPS in ABC (601288 CH), ZHONGJI INNOLIGHT (300308 CH), PING AN INSURANCE...

Ke Yan, CFA, FRM

Quiddity CSI 300/500 Dec25 Results: 90% Hit Rate (110/121 Correct); US$9.5bn Combined One-Way Flow

We correctly predicted 110 of the 122 confirmed index changes for the CSI 300 and CSI 500 indices. This translates to a hit rate of 90%.

Janaghan Jeyakumar, CFA

SSE50 Index Rebalance: 4 Changes a Side & US$2.2bn Trade

There are 4 changes for the SSE50 Index in Dec. Dawning is the surprise addition and could move closer to the merger ratio implied price. Estimated...

Brian Freitas

CSI300 Index Rebalance: 11 Changes & US$7.77bn Trade

There are 11 changes for the CSI300 Index in Dec. Not too many surprises. Estimated turnover is 2.2% leading to a round-trip trade of US$7.77bn....

Brian Freitas

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Quiddity Leaderboard CSI 300/​​500 Dec25: Final Expectations; Huge Flows

The CSI 300 index rebalance could cause US$5.5bn in one-way flows while the CSI 500 index rebalance could result in US$4.3bn in one-way flows...

Janaghan Jeyakumar, CFA

CSI 300 Index Earning Revision (Dec): ABC, ZHONGJI INNOLIGHT, PING AN INSURANCE

We analyzed CSI 300's consensus for Dec 2025 and highlighted changes of EPS in ABC (601288 CH), ZHONGJI INNOLIGHT (300308 CH), PING AN INSURANCE...

Ke Yan, CFA, FRM

Quiddity CSI 300/​​500 Dec25 Results: 90% Hit Rate (110/121 Correct); US$9.5bn Combined One-Way Flow

We correctly predicted 110 of the 122 confirmed index changes for the CSI 300 and CSI 500 indices. This translates to a hit rate of 90%.

Janaghan Jeyakumar, CFA

SSE50 Index Rebalance: 4 Changes a Side & US$2.2bn Trade

There are 4 changes for the SSE50 Index in Dec. Dawning is the surprise addition and could move closer to the merger ratio implied price. Estimated...

Brian Freitas

CSI300 Index Rebalance: 11 Changes & US$7.77bn Trade

There are 11 changes for the CSI300 Index in Dec. Not too many surprises. Estimated turnover is 2.2% leading to a round-trip trade of US$7.77bn....

Brian Freitas

Quiddity Leaderboard CSI 300/500 Dec25: Final Expectations; Huge Flows

Quiddity CSI 300/500 Dec25 Results: 90% Hit Rate (110/121 Correct); US$9.5bn Combined One-Way Flow