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.

Index Rebalance

China Tungsten And Hightech Ma / Index Rebalance

China Tungsten And Hightech Ma (000657 CH)

<ul>
<li>CSI confirmed 19 ADDs and 19 DELETEs for the June 2026 rebalance, effective 15 Jun 2026.</li>
<li>ADD gains narrowed to seven positive-bridge names, led by Xiamen Tungsten and China Tungsten. DELETEs fell -4.4% on average.</li>
<li>Historical first-week outcomes were negative on average for both ADD and DELETE, but different subgroup recorded varied performance.</li>
</ul>


CSI confirmed 19 ADDs and 19 DELETEs for the June 2026 rebalance, effective 15 Jun 2026.
ADD gains narrowed to seven positive-bridge names, led by Xiamen Tungsten and China Tungsten. DELETEs fell -4.4% on average.
Historical first-week outcomes were negative on average for both ADD and DELETE, but different subgroup recorded varied performance.


CSI 300 June 2026 Rebalance: Pre-Implementation Update

Index Rebal/Special Situations, Quiddity Advisors

Janaghan Jeyakumar, CFA

Index Rebal/Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

<ul>
<li>The June 2026 index review results for China's CSI 300 and CSI 500 indices were announced after market close on Friday 29th May 2026.</li>
<li>There will be 19 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$4.7bn and US$4.4bn in one-way flows respectively.</li>
</ul>


The June 2026 index review results for China's CSI 300 and CSI 500 indices were announced after market close on Friday 29th May 2026.
There will be 19 ADDs/DELs for CSI 300 and 50 ADDs/DELs for CSI 500.
The CSI 300 and CSI 500 index rebal events could trigger US$4.7bn and US$4.4bn in one-way flows respectively.


Quiddity CSI 300/​​500 Jun26 Results: 86% Correctly Predicted; Large Flow Event Despite Drop in AUM

<ul>
<li>CSI announced 19 ADDs and 19 DELETEs effective 15 Jun 2026, the largest cycle in our four-cycle reference set.</li>
<li>We reviewed rebalance stocks against four prior CSI 300 cycles and the completed pre-announcement setup.</li>
<li>The prior forecast captured the four strongest ADDs and six of the seven weakest DELETEs, with misses mainly in buffer-zone ADDs and retained-risk DELETEs.</li>
</ul>


CSI announced 19 ADDs and 19 DELETEs effective 15 Jun 2026, the largest cycle in our four-cycle reference set.
We reviewed rebalance stocks against four prior CSI 300 cycles and the completed pre-announcement setup.
The prior forecast captured the four strongest ADDs and six of the seven weakest DELETEs, with misses mainly in buffer-zone ADDs and retained-risk DELETEs.


CSI 300 June 2026 Rebalance: Post-Announcement Positioning

Quantitative Analysis

<ul>
<li>We analyzed the changes in margin trading positions of A-share stocks as of May 22nd. The aggregated net margin trading position is USD389,895m.</li>
<li>We tabulate league tables for top/bottom net long/short of margin trading by value, net margin buy as multiple of ADT.</li>
<li>We highlight net margin buy/sell changes in JIANGSU XINQUAN AUTOMOTIVE TRIM, LENS TECHNOLOGY, BOE, YUANJIE SEMI, ZHONGJI INNOLIGHT.</li>
</ul>


We analyzed the changes in margin trading positions of A-share stocks as of May 22nd. The aggregated net margin trading position is USD389,895m.
We tabulate league tables for top/bottom net long/short of margin trading by value, net margin buy as multiple of ADT.
We highlight net margin buy/sell changes in JIANGSU XINQUAN AUTOMOTIVE TRIM, LENS TECHNOLOGY, BOE, YUANJIE SEMI, ZHONGJI INNOLIGHT.


A-Share Margin Trading Weekly (May 22nd): JIANGSU XINQUAN AUTOMOTIVE TRIM, LENS TECHNOLOGY, BOE

Verisilicon Microelectronics S / Index Rebalance

Verisilicon Microelectronics S (688521 CH)

<ul>
<li>We screened the CSI 300 eligible universe ahead of the Jun 2026 semi-annual rebalance.</li>
<li>ADDs: we expect 4 High Conviction ADDs, 6 Mid Conviction ADDs, and 3 Low Conviction ADDs.</li>
<li>We also flag 2 Skip ADDs due to CG/CSRC issues. DELETEs: we expect 8 Likely DELETEs, 3 Borderline DELETEs, 4 Rank-Driven DELETEs, and 1 Potential Retain.</li>
</ul>


We screened the CSI 300 eligible universe ahead of the Jun 2026 semi-annual rebalance.
ADDs: we expect 4 High Conviction ADDs, 6 Mid Conviction ADDs, and 3 Low Conviction ADDs.
We also flag 2 Skip ADDs due to CG/CSRC issues. DELETEs: we expect 8 Likely DELETEs, 3 Borderline DELETEs, 4 Rank-Driven DELETEs, and 1 Potential Retain.


China

Beijing Tiantan Biological Products Corporation Limited researches, develops, and commercializes biological products.  The Company provides treatment for hepatitis and offers a line of vaccine products including hepatitis vaccines and rubella vaccines.

Beijing Tiantan Biological Products (600161 CH)

Price Gauge
52-week Range	0.00 - 0.00
Market Cap (USDm)	0.00
P/E	0.00
Dividend (Yield)	0.00

Beijing Tiantan Biological Products (600161 CH)

CSI 300 June 2026 Rebalance: Pre-Implementation Update

CSI 300 enters implementation on 15 Jun 2026. We update post-announcement stock performance and discuss implementation trades.

Ke Yan, CFA, FRM

Quiddity CSI 300/500 Jun26 Results: 86% Correctly Predicted; Large Flow Event Despite Drop in AUM

We correctly predicted 118 out of the 138 confirmed changes (86% success rate) using 136 predictions (87% accuracy). The Net inflow names could...

Janaghan Jeyakumar, CFA

CSI 300 June 2026 Rebalance: Post-Announcement Positioning

CSI 300 June 2026 post-announcement trading is live. ADD strength is concentrated in a few forecast names. The opening gap should set chase and...

Ke Yan, CFA, FRM

CSI 300 May 2026 Index Review Forecast

CSI 300 May 2026 review: we expect 4 High Conviction ADDs and 6 Mid Conviction ADDs, offset by 8 Likely DELETEs, 7 Borderline or rank-driven...

Ke Yan, CFA, FRM

Price Gauge

52-week Range

Market Cap (USDm)

P/E

Dividend (Yield)

CSI 300 June 2026 Rebalance: Pre-Implementation Update

CSI 300 enters implementation on 15 Jun 2026. We update post-announcement stock performance and discuss implementation trades.

Ke Yan, CFA, FRM

Quiddity CSI 300/​​500 Jun26 Results: 86% Correctly Predicted; Large Flow Event Despite Drop in AUM

We correctly predicted 118 out of the 138 confirmed changes (86% success rate) using 136 predictions (87% accuracy). The Net inflow names could...

Janaghan Jeyakumar, CFA

CSI 300 June 2026 Rebalance: Post-Announcement Positioning

CSI 300 June 2026 post-announcement trading is live. ADD strength is concentrated in a few forecast names. The opening gap should set chase and...

Ke Yan, CFA, FRM

A-Share Margin Trading Weekly (May 22nd): JIANGSU XINQUAN AUTOMOTIVE TRIM, LENS TECHNOLOGY, BOE

We analyzed A-share margin trading positions report for the past week and highlighted JIANGSU XINQUAN AUTOMOTIVE TRIM, LENS TECHNOLOGY, BOE,...

Ke Yan, CFA, FRM

CSI 300 May 2026 Index Review Forecast

CSI 300 May 2026 review: we expect 4 High Conviction ADDs and 6 Mid Conviction ADDs, offset by 8 Likely DELETEs, 7 Borderline or rank-driven...

Ke Yan, CFA, FRM

Quiddity CSI 300/500 Jun26 Results: 86% Correctly Predicted; Large Flow Event Despite Drop in AUM