Index Rebal Trades & Special Situations, Quiddity Advisors

Janaghan Jeyakumar, CFA

Index Rebal Trades & Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

Index Rebalance

Hebei Changshan Biochemical Pharm / Index Rebalance

Hebei Changshan Biochemical Pharmaceutical Company Limited is a state level biopharmaceutical company. The Company's main products include Heparin Sodium API (injection and non-injection), low molecular weight Heparin Calcium injection and Heparin Sodium injection.

Hebei Changshan Biochemical Pharm (300255 CH)

<ul>
<li>The June 2025 index review results for the ChiNext and ChiNext 50 indices were announced after market close on Friday 28th November 2025.</li>
<li>There will be eight changes for the ChiNext index and five changes for the ChiNext 50 index.</li>
<li>The ChiNext and ChiNext 50 index rebal events could trigger US$1.1bn and US$379mn in one-way flows respectively.</li>
</ul>


The June 2025 index review results for the ChiNext and ChiNext 50 indices were announced after market close on Friday 28th November 2025.
There will be eight changes for the ChiNext index and five changes for the ChiNext 50 index.
The ChiNext and ChiNext 50 index rebal events could trigger US$1.1bn and US$379mn in one-way flows respectively.


Quiddity ChiNext & ChiNext 50 Dec25 Results: ~US$1.5bn Combined One-Way Flow; Multiple Surprises

Zhenxing Biopharmaceutical & Chemicl / Index Rebalance

Zhenxing Biopharmaceutical and Chemical Co., Ltd manufactures and distributes biopharmaceutical and fine chemical products.  The Company also produces wheel forklift trucks and other accessories.

Zhenxing Biopharmaceutical & Chemicl (000403 CH)

<ul>
<li>The December 2025 index review results for China's CSI 1000 index were announced after market close on Friday 28th November 2025.</li>
<li>There will be 100 ADDs/DELs for CSI 1000 in the December 2025 rebalance.</li>
<li>The CSI 1000 index rebal event could trigger US$2.5bn in one-way flow.</li>
</ul>


The December 2025 index review results for China's CSI 1000 index were announced after market close on Friday 28th November 2025.
There will be 100 ADDs/DELs for CSI 1000 in the December 2025 rebalance.
The CSI 1000 index rebal event could trigger US$2.5bn in one-way flow.


Quiddity CSI 1000 Dec25 Results: 88% Hit Rate; 100 ADDs/DELs; ~US$2.5bn One-Way

Shanghai Haohai Biological Tec / Index Rebalance

Shanghai Haohai Biological Technology Co., Ltd. manufactures absorbable biomedical materials. The Company manufactures and sells intraocular lens, medical sodium hyaluronate, medical chitosan, medical collage sponge, and other products. Shanghai Haohai Biological Technology markets its products worldwide.

Shanghai Haohai Biological Tec (688366 CH)

<ul>
<li>The December 2025 index review results for the STAR 50 and STAR 100 indices were announced after market close on Friday 28th November 2025.</li>
<li>There will be two changes for the STAR 50 index and eight changes for the STAR 100 index.</li>
<li>We expect one-way flows of approximately US$1.4bn and US$516mn for the STAR 50 and STAR 100 index rebal events, respectively.</li>
</ul>


The December 2025 index review results for the STAR 50 and STAR 100 indices were announced after market close on Friday 28th November 2025.
There will be two changes for the STAR 50 index and eight changes for the STAR 100 index.
We expect one-way flows of approximately US$1.4bn and US$516mn for the STAR 50 and STAR 100 index rebal events, respectively.


Quiddity STAR 50/100 Dec25 Results: 19/20 Changes Correctly Predicted; ~US$2bn Combined One-Way Flow

Beijing Enlight Media Company Limited invest, produces and distributes television programs, films and teleplays. The Company's major products include TV shows, TV entertainment programs, films and drama series.

<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

i-Tail Corporation Public Company Limited manufactures and exports pet food products. The Company offers sea food, meat chunks, and loaf products for pets. i-Tail serves customers worldwide.

<ul>
<li>The SET50 index tracks the performance of the top 50 largest and most liquid names listed on the Stock Exchange of Thailand (SET).</li>
<li>In this insight, we take a look at our capping flow expectations for the December 2025 index rebal event.</li>
<li>We have also presented our index change expectations for the next semiannual index review in December 2025 (regular ADDs/DELs only take place in June and December).</li>
</ul>


The SET50 index tracks the performance of the top 50 largest and most liquid names listed on the Stock Exchange of Thailand (SET).
In this insight, we take a look at our capping flow expectations for the December 2025 index rebal event.
We have also presented our index change expectations for the next semiannual index review in December 2025 (regular ADDs/DELs only take place in June and December).


Quiddity Leaderboard SET50 Dec 2025: Reference Period Ending Soon; Two Changes Likely

Equity Analyst with 10+ years experience in fundamental and event-driven research.

On Smartkarma, I mainly publish insights on index flow events. This includes predicting regular and intra-review index changes and formulating market-neutral trading strategies based on flow catalysts. I also cover special situations such as mergers & acquisitions, equity offerings, buybacks, and other corporate restructuring events.