Pan-Asia Index Rebalances/ Events/ Delta One, Periscope Analytics

Brian Freitas

Highly experienced ex-Delta One trader with 17 years of experience trading arbitrage and related strategies across Asian markets.

Exempt Financial Adviser (EFA) under CrossASEAN Research Pte Ltd.

It is important to note that the information provided by Periscope Analytics is based on publicly available data and own knowledge, which has been gathered and synthesized from a variety of sources. While every effort has been made to ensure the accuracy and completeness of the information provided, it is not guaranteed to be free from errors or omissions.

All forecasts and estimates are based on information that has been obtained from public sources that are considered to be reliable. The sources include, but are not limited to, company announcements, exchange filings, ETF and other passive investment vehicle holdings, and free float and volume data from third-party data providers. Periscope Analytics does not guarantee the accuracy and completeness of the forecasts, estimates and/or other information.

Pan-Asia Index Rebalances/ Events/ Delta One

HSTECH Index Rebalance Preview: Universe Expansion Could Lead to One Change

HSCI Index Rebalance Preview and Stock Connect (Sep 2025): Plenty of Recent IPOs Could Be Added

HSCEI Index Rebalance Preview: Pop Mart (9992 HK) Could Replace J&T Global (1519 HK)

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

<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.


Shanghai Pharmaceuticals Holding (2607 HK)

Shanghai Fosun Pharmaceutical (Group) (2196 HK)

Hangzhou Kangji Medical Instrument Co., Ltd. (9997 HK)

Hangzhou Kangji Medical Instrument Co., Ltd.

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

Consun Pharmaceutical

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