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

Hang Seng Indexes: US$3.2bn of Flows Post Capping + Stock Connect Changes (Sep 2026)

HSCI Index Rebalance Preview: Semiconductor & Software Stocks Dominate Potential Adds in June

HSCI Index Rebalance Preview: Stock Connect & Index Buying Vs Lock-Up Expiry Selling

HSCI Index Rebalance Preview and Stock Connect (Sep 2026): Adds Outnumber Deletes as IPOs Dominate

HSTECH Index Rebalance Preview: Style Rotation Drives AI Additions & Software Deletions

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>There are 61 adds and 15 deletes for the Hang Seng Composite Index (HSCI) at the September rebalance to take the number of index constituents up to 580.</li>
<li>Of the 61 HSCI inclusions, 6 are already a part of StockConnect. 54 stocks will be added from the open 7 September. All 15 deletion will be removed from StockConnect.</li>
<li>Stocks that are expected to be added to Southbound Stock Connect have massively outperformed stocks that are expected to be removed from Southbound Stock Connect over the last 3 weeks.</li>
</ul>


There are 61 adds and 15 deletes for the Hang Seng Composite Index (HSCI) at the September rebalance to take the number of index constituents up to 580.
Of the 61 HSCI inclusions, 6 are already a part of StockConnect. 54 stocks will be added from the open 7 September. All 15 deletion will be removed from StockConnect.
Stocks that are expected to be added to Southbound Stock Connect have massively outperformed stocks that are expected to be removed from Southbound Stock Connect over the last 3 weeks.


Jiangsu Guofu Hydrogen Energy Equipment (2582 HK)

Beijing Zhongke WengAI Science and Technology (ZKWAI HK)

Beijing Zhongke WengAI Science and Technology

HSCI Index Rebalance: 61 Adds, 15 Deletes, Changes to Southbound Stock Connect & BIG Outperformance

Manycore Tech

HSCI Index Rebalance: 61 Adds, 15 Deletes, Changes to Southbound Stock Connect & BIG Outperformance