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 analyse the changes of A-H premium on 176 stocks over the last week. The average A-H premium was 67.7% as of Mar 6th.</li>
<li>The average A-H premium changed by 1.0ppt week-on-week, led by materials, energy, financials and offset by communication services, utilities, health care.</li>
<li>We highlight weekly changes in A-H premium for Sinopec, COSCO Shipping Energy, China Coal Energy, CNOOC, China Oilfield Services, BYD.</li>
</ul>


We analyse the changes of A-H premium on 176 stocks over the last week. The average A-H premium was 67.7% as of Mar 6th.
The average A-H premium changed by 1.0ppt week-on-week, led by materials, energy, financials and offset by communication services, utilities, health care.
We highlight weekly changes in A-H premium for Sinopec, COSCO Shipping Energy, China Coal Energy, CNOOC, China Oilfield Services, BYD.


A-H Premium Weekly (Mar 6th): Sinopec, COSCO Shipping Energy, China Coal Energy, CNOOC

Event-Driven

<ul>
<li>This note examines the price behaviour of stocks added to and deleted from the STAR50 Index across seven rebalance events (June 2024 through March 2026).</li>
<li>We test whether market participants systematically front-run index changes during the announcement-to-implementation window, and whether that front-running creates predictable post-implementation reversals.</li>
<li>The analysis uses free-float shares as a percentage of average daily volume (FF/ADV) as the primary proxy for expected flow impact.</li>
</ul>


This note examines the price behaviour of stocks added to and deleted from the STAR50 Index across seven rebalance events (June 2024 through March 2026).
We test whether market participants systematically front-run index changes during the announcement-to-implementation window, and whether that front-running creates predictable post-implementation reversals.
The analysis uses free-float shares as a percentage of average daily volume (FF/ADV) as the primary proxy for expected flow impact.


STAR50 Index Rebalance (Quantitative Event Study): Historical Patterns & Current Event Analysis

<ul>
<li>We analysed the earning revision of component stocks of CSI 100 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 CMB, ZIJIN MINING, ZHONGJI INNOLIGHT, PING AN INSURANCE, GIGADEVICE SEMICONDUCTOR, CATL, GANFENG LITHIUM.</li>
</ul>


We analysed the earning revision of component stocks of CSI 100 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 CMB, ZIJIN MINING, ZHONGJI INNOLIGHT, PING AN INSURANCE, GIGADEVICE SEMICONDUCTOR, CATL, GANFENG LITHIUM.


CSI 100 Index Earning Revision (Feb): CMB, ZIJIN MINING, ZHONGJI INNOLIGHT, PING AN INSURANCE

<ul>
<li>We analysed the earning revision of component stocks of STAR50 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 CAMBRICON TECHNOLOGIES, TRINA SOLAR, TRANSSION, Advanced Micro, MONTAGE TECHNOLOGY, JINKO SOLAR, MGI TECH.</li>
</ul>


We analysed the earning revision of component stocks of STAR50 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 CAMBRICON TECHNOLOGIES, TRINA SOLAR, TRANSSION, Advanced Micro, MONTAGE TECHNOLOGY, JINKO SOLAR, MGI TECH.


STAR50 Index Earning Revision (Feb): CAMBRICON, TRINA SOLAR, TRANSSION, Advanced Micro

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

Cambricon Technologies  Lt / Index Rebalance

<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">SSE STAR50 (STAR50 INDEX)</a>, 10 changes for the STAR100 Index and 2 changes for the STAR Chip Index at the March rebalance.</li>
<li>We estimate one-way turnover of 9% 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> resulting in a round-trip trade of CNY 27.6bn (US$4bn). One-way turnover for the STAR100 Index is 9.2%.</li>
<li>With the National Team redeeming ETFs, the adds have outperformed the deletes for all the indices and that could continue ahead of implementation of the changes.</li>
</ul>


There are 3 constituent changes for the SSE STAR50 (STAR50 INDEX), 10 changes for the STAR100 Index and 2 changes for the STAR Chip Index at the March rebalance.
We estimate one-way turnover of 9% for the STAR50 INDEX resulting in a round-trip trade of CNY 27.6bn (US$4bn). One-way turnover for the STAR100 Index is 9.2%.
With the National Team redeeming ETFs, the adds have outperformed the deletes for all the indices and that could continue ahead of implementation of the changes.


STAR50/STAR100/STAR Chip Index Rebalance: Adds Outperform Deletes as Trade Nears US$6bn

China

Montage Technology Co., Ltd. manufactures electronic components. The Company produces memory interface chips, consumer electronics cores, and other products. Montage Technology supplies its products in memory, server, cloud computing, and other fields.

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Montage Technology (688008 CH)

A-H Premium Weekly (Mar 6th): Sinopec, COSCO Shipping Energy, China Coal Energy, CNOOC

We analyzed A-H premium changes in the past week and highlight A-H premium changes for Sinopec, COSCO Shipping Energy, China Coal Energy, CNOOC,...

Ke Yan, CFA, FRM

STAR50 Index Rebalance (Quantitative Event Study): Historical Patterns & Current Event Analysis

STAR50 Mar-2026 rebalance: event study across 7 rebalances reveals front-running begins earlier than commonly assumed. Current cycle shows notable...

Ke Yan, CFA, FRM

CSI 100 Index Earning Revision (Feb): CMB, ZIJIN MINING, ZHONGJI INNOLIGHT, PING AN INSURANCE

We analyzed CSI 100's consensus for Feb 2026 and highlighted changes of EPS in CMB, ZIJIN MINING, ZHONGJI INNOLIGHT, PING AN INSURANCE, GIGADEVICE...

Ke Yan, CFA, FRM

STAR50 Index Earning Revision (Feb): CAMBRICON, TRINA SOLAR, TRANSSION, Advanced Micro

We analyzed STAR50's consensus for Feb 2026 and highlighted changes of EPS in CAMBRICON TECHNOLOGIES, TRINA SOLAR, TRANSSION, Advanced Micro,...

Ke Yan, CFA, FRM

STAR50/STAR100/STAR Chip Index Rebalance: Adds Outperform Deletes as Trade Nears US$6bn

There are 3 changes for the STAR50, 10 changes for the STAR100, 2 changes for the STAR Chip in March. The adds have outperformed the deletes across...

Brian Freitas

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