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 Internet &amp; IT (HSIII) index represents the top 30 stocks related to internet and information technology businesses listed in Hong Kong (HKEX).</li>
<li>In this insight, we take a look at the impact of the new selection methodology for the December 2025 and March 2026 rebal/review events.</li>
<li>We have also presented our index change expectations for the next semiannual index review which will take place in March 2026 (regular ADDs/DELs only take place in March and September).</li>
</ul>


The Hang Seng Internet &amp; IT (HSIII) index represents the top 30 stocks related to internet and information technology businesses listed in Hong Kong (HKEX).
In this insight, we take a look at the impact of the new selection methodology for the December 2025 and March 2026 rebal/review events.
We have also presented our index change expectations for the next semiannual index review which will take place in March 2026 (regular ADDs/DELs only take place in March and September).


Quiddity Leaderboard HSIII Dec25/Mar26: Interesting Implications of the Recent Methodology Changes

Asia L/S Equity PM/Macro/Thematic Idea Generation

Rikki Malik

Equity Bottom-Up

<ul>
<li>A review of recent events/data impacting our investment themes and outlook</li>
<li>Change of mindset needed for HK/China as the bull markets broadens out</li>
<li>Signs of excess are rife in many global markets, but no top yet signalled.</li>
</ul>


A review of recent events/data impacting our investment themes and outlook
Change of mindset needed for HK/China as the bull markets broadens out
Signs of excess are rife in many global markets, but no top yet signalled.


Overview #34 – China Rocks On: Bull Market Rules

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>Last evening, Hang Seng announced a methodology change for the Hang Seng Internet &amp; Information Technology Index (HSIII Index) with implementation in two phases.</li>
<li>The capping methodology will be updated at the September rebalance and the turnover and sector requirements will be updated at the December rebalance.</li>
<li>The updated capping scheme increases turnover and flow in September, while there could be one constituent change for the index at the December rebalance.</li>
</ul>


Last evening, Hang Seng announced a methodology change for the Hang Seng Internet &amp; Information Technology Index (HSIII Index) with implementation in two phases.
The capping methodology will be updated at the September rebalance and the turnover and sector requirements will be updated at the December rebalance.
The updated capping scheme increases turnover and flow in September, while there could be one constituent change for the index at the December rebalance.


Hang Seng Internet & IT Index (HSIII): Methodology Change & Impact

<ul>
<li>The Hang Seng Internet &amp; IT (HSIII) index represents the top 30 stocks related to internet and information technology businesses listed in Hong Kong (HKEX).</li>
<li>For the June 2025 index rebal, we estimate there to be US$423mn one-way flows due to capping.</li>
<li>We also expect <em>three</em> index changes (so far) for the next semiannual index review which will take place in September 2025 (regular ADDs/DELs only take place in March and September).</li>
</ul>


The Hang Seng Internet &amp; IT (HSIII) index represents the top 30 stocks related to internet and information technology businesses listed in Hong Kong (HKEX).
For the June 2025 index rebal, we estimate there to be US$423mn one-way flows due to capping.
We also expect three index changes (so far) for the next semiannual index review which will take place in September 2025 (regular ADDs/DELs only take place in March and September).


Quiddity Leaderboard HSIII Jun25: US$423mn One-Way for Jun; Some Sector-Neutral Pair Trades for Sep

<ul>
<li>Most Secondary-listed companies have announced the number of shares that underlie ADRs and are held by the ADR depositaries as of end-March (or around that time).</li>
<li>There are some significant increases in the number of shares held by the ADR depositaries. That changes the free float for the stocks and consequently the estimated flows.</li>
<li>
<a href="https://www.smartkarma.com/entities/netease-inc" target="_blank" data-smartkarma-citation="entities:29030:1" rel="noopener">NetEase (9999 HK)</a>, <a href="https://www.smartkarma.com/entities/trip-com-group-ltd-23a341d0-4f63-4175-a8c5-ee990906cacd" target="_blank" data-smartkarma-citation="entities:36424:1" rel="noopener">Trip.com Group (9961 HK)</a>, <a href="https://www.smartkarma.com/entities/baidu-inc-a55ca720-5968-48f0-8194-ac94390d065c" target="_blank" data-smartkarma-citation="entities:32212:1" rel="noopener">Baidu (9888 HK)</a> and <a href="https://www.smartkarma.com/entities/weibo-corp" target="_blank" data-smartkarma-citation="entities:35280:1" rel="noopener">Weibo (9898 HK)</a> will have passives buying, while <a href="https://www.smartkarma.com/entities/nio-inc-2d526675-c878-4104-840f-87fed1735e85" target="_blank" data-smartkarma-citation="entities:35652:1" rel="noopener">NIO (9866 HK)</a> switches to a sell.</li>
</ul>


Most Secondary-listed companies have announced the number of shares that underlie ADRs and are held by the ADR depositaries as of end-March (or around that time).
There are some significant increases in the number of shares held by the ADR depositaries. That changes the free float for the stocks and consequently the estimated flows.

NetEase (9999 HK), Trip.com Group (9961 HK), Baidu (9888 HK) and Weibo (9898 HK) will have passives buying, while NIO (9866 HK) switches to a sell.


Hang Seng Indexes: ADR Depositary Holding Changes; Round-Trip Trade Is US$5.1bn; NetEase Outperforms

China

Weibo Corporation operates a leading social media platform in China, enabling users to create, discover, and distribute Chinese-language content. The company primarily generates revenue through advertising and marketing services, alongside value-added services such as membership and online games. It is headquartered in Beijing, China, and was founded in 2009.

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Weibo (9898 HK)

Quiddity Leaderboard HSIII Dec25/Mar26: Interesting Implications of the Recent Methodology Changes

The recent methodology update could result in unusual index changes during the December 2025 index rebal event. There could be more in March 2026 too.

Janaghan Jeyakumar, CFA

Overview #34 – China Rocks On: Bull Market Rules

A review of recent events/data impacting our investment themes and outlook. We look at some new additions in Chinese tech as the bull market broadens

Rikki Malik

Hang Seng Internet & IT Index (HSIII): Methodology Change & Impact

Changes to the capping scheme increase turnover and flow in September. Introduction of minimum turnover and expansion of the universe could lead to...

Brian Freitas

Quiddity Leaderboard HSIII Jun25: US$423mn One-Way for Jun; Some Sector-Neutral Pair Trades for Sep

We see NetDragon (777 HK) as an expected DEL for the September 2025 index review and there could be multiple days of volume to sell. NetDragon...

Janaghan Jeyakumar, CFA

Hang Seng Indexes: ADR Depositary Holding Changes; Round-Trip Trade Is US$5.1bn; NetEase Outperforms

ADR depositary holding changes alter FAFs and flows. Estimated round-trip trade is US$5.1bn now. NetEase has outperformed the HSCI by 15.5% since...

Brian Freitas

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