Index Rebal/Special Situations, Quiddity Advisors

Janaghan Jeyakumar, CFA

Index Rebal/Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

Index Rebalance

<ul>
<li>The Hang Seng Biotech Index (HSHKBIO) represents the largest biotech companies listed in Hong Kong (HKEX) from September 2025.</li>
<li>We expect 20 index constituents to face deletion in September 2025 rebal due to a recent change in index selection methodology.</li>
<li>The index changes will be announced after the close on Friday 22nd August 2025.</li>
</ul>


The Hang Seng Biotech Index (HSHKBIO) represents the largest biotech companies listed in Hong Kong (HKEX) from September 2025.
We expect 20 index constituents to face deletion in September 2025 rebal due to a recent change in index selection methodology.
The index changes will be announced after the close on Friday 22nd August 2025.


Quiddity Leaderboard Hang Seng Biotech Sep25: Announcement Soon; MANY DELs Likely!

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 157 stocks over the last week. The average A-H premium was 54.6% as of Aug 15th.</li>
<li>The average A-H premium changed by -4.2ppt week-on-week, led by real estate, financials, materials.</li>
<li>We highlight weekly changes in A-H premium for MCC, Jiangxi Copper, Ganfeng Lithium, Csc Financial, Fosun Pharma.</li>
</ul>


We analyse the changes of A-H premium on 157 stocks over the last week. The average A-H premium was 54.6% as of Aug 15th.
The average A-H premium changed by -4.2ppt week-on-week, led by real estate, financials, materials.
We highlight weekly changes in A-H premium for MCC, Jiangxi Copper, Ganfeng Lithium, Csc Financial, Fosun Pharma.


A-H Premium Weekly (Aug 15th): MCC, Jiangxi Copper, Ganfeng Lithium, Csc Financial, Fosun Pharma

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

<ul>
<li>A methodology change for the Hang Seng Biotech Index (HSHKBIO Index) will result in 20 deletions at the close of trading on 5 September.</li>
<li>Estimated one-way turnover at the rebalance is 9.5% resulting in a round-trip trade of HK$1.3bn (US$162m). Passive trackers need to sell between 0.05-1x ADV in the deletes.</li>
<li>The forecast deletes have underperformed the other index constituents since the start of the year but there has been little movement since the announcement of the methodology change.</li>
</ul>


A methodology change for the Hang Seng Biotech Index (HSHKBIO Index) will result in 20 deletions at the close of trading on 5 September.
Estimated one-way turnover at the rebalance is 9.5% resulting in a round-trip trade of HK$1.3bn (US$162m). Passive trackers need to sell between 0.05-1x ADV in the deletes.
The forecast deletes have underperformed the other index constituents since the start of the year but there has been little movement since the announcement of the methodology change.


Hang Seng Biotech Index Rebalance Preview: Methodology Change Leads to 20 Deletions

<ul>
<li>We analyse the changes of A-H premium on 157 stocks over the last week. The average A-H premium was 58.9% as of Aug 8th.</li>
<li>The average A-H premium changed by -2.3ppt week-on-week, led by materials, health care, utilities.</li>
<li>We highlight weekly changes in A-H premium for Metallurgical Corporation Of China, Shandong Gold Mining, China Shenhua Energy, Tianqi Lithium.</li>
</ul>


We analyse the changes of A-H premium on 157 stocks over the last week. The average A-H premium was 58.9% as of Aug 8th.
The average A-H premium changed by -2.3ppt week-on-week, led by materials, health care, utilities.
We highlight weekly changes in A-H premium for Metallurgical Corporation Of China, Shandong Gold Mining, China Shenhua Energy, Tianqi Lithium.


A-H Premium Weekly (Aug 8th): Metallurgical Corporation Of China, Shandong Gold Mining

<ul>
<li>We analyse the changes of A-H premium on 157 stocks over the last week. The average A-H premium was 61.4% as of Aug 1st.</li>
<li>The average A-H premium changed by 3.6ppt week-on-week, led by real estate, consumer staples, health care and offset by materials.</li>
<li>We highlight weekly changes in A-H premium for China Telecom, CIMC, Anjoy Food, China Everbright Bank, Zhengzhou Coal Mining Machinery, BYD.</li>
</ul>


We analyse the changes of A-H premium on 157 stocks over the last week. The average A-H premium was 61.4% as of Aug 1st.
The average A-H premium changed by 3.6ppt week-on-week, led by real estate, consumer staples, health care and offset by materials.
We highlight weekly changes in A-H premium for China Telecom, CIMC, Anjoy Food, China Everbright Bank, Zhengzhou Coal Mining Machinery, BYD.


A-H Premium Weekly (Aug 1st): China Telecom, CIMC, Anjoy Food, China Everbright Bank

China

Fosun Pharma is a global innovation-driven healthcare group with core businesses in pharmaceutical manufacturing and R&D, medical devices and diagnosis, and healthcare services. The company focuses on therapeutic areas such as oncology, immunology, and central nervous system disorders, offering products like Artesun® and Yi Kai Da. It was founded in 1994 and is headquartered in Shanghai, China.

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

Fosun Pharma (2196 HK)

Quiddity Leaderboard Hang Seng Biotech Sep25: Announcement Soon; MANY DELs Likely!

There are 20 deletions expected due to drastic changes to the index selection methodology. These names have underperformed the index in the last...

Janaghan Jeyakumar, CFA

A-H Premium Weekly (Aug 15th): MCC, Jiangxi Copper, Ganfeng Lithium, Csc Financial, Fosun Pharma

We analyzed A-H premium changes in the past week and highlight A-H premium changes for MCC, Jiangxi Copper, Ganfeng Lithium, Csc Financial, Fosun...

Ke Yan, CFA, FRM

Hang Seng Biotech Index Rebalance Preview: Methodology Change Leads to 20 Deletions

A methodology change could lead to 20 deletions in Sep. Estimated one-way turnover at the rebalance is 9.5% resulting in a round-trip trade of...

Brian Freitas

A-H Premium Weekly (Aug 8th): Metallurgical Corporation Of China, Shandong Gold Mining

We analyzed A-H premium changes in the past week and highlight A-H premium changes for Metallurgical Corporation Of China, Shandong Gold Mining,...

Ke Yan, CFA, FRM

A-H Premium Weekly (Aug 1st): China Telecom, CIMC, Anjoy Food, China Everbright Bank

We analyzed A-H premium changes in the past week and highlight A-H premium changes for China Telecom, CIMC, Anjoy Food, China Everbright Bank,...

Ke Yan, CFA, FRM

Price Gauge

52-week Range

Market Cap (USDm)

P/E

Dividend (Yield)