Index Rebal/Special Situations, Quiddity Advisors

Janaghan Jeyakumar, CFA

Index Rebal/Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

Index Rebalance

Tung Ho Steel Enterprise / Index Rebalance

<ul>
<li>The T50 index represents the top 50 largest stocks by market capitalization in the Taiwan Stock Exchange (TWSE). The T100 index represents the next 100 largest names (51-150 ranks).</li>
<li>Today is the base date for the December 2025 index rebal event and the expected ADDs/DELs discussed in this insight are our final index change expectations.</li>
<li>We expect four changes for T50 and three <em>additional</em> changes for the T100 index for the December 2025 rebal.</li>
</ul>


The T50 index represents the top 50 largest stocks by market capitalization in the Taiwan Stock Exchange (TWSE). The T100 index represents the next 100 largest names (51-150 ranks).
Today is the base date for the December 2025 index rebal event and the expected ADDs/DELs discussed in this insight are our final index change expectations.
We expect four changes for T50 and three additional changes for the T100 index for the December 2025 rebal.


Quiddity Leaderboard T50/​​​100 Dec25: Final Ranks; Tung Ho Escapes TDIV Deletion!

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>There could be 4 constituent changes for the Yuanta/P-Shares Taiwan Top 50 ETF in December as positioning for buying by one set of index trackers pushes stocks into other indices.</li>
<li>There will be passive inflows in some of the forecast adds week after next and the flows from these index trackers will come a few weeks later.</li>
<li>With large AUMs tracking the dividend indices, stocks that have moved up a lot now have low dividend yields and there could be opposite flows from those index trackers.</li>
</ul>


There could be 4 constituent changes for the Yuanta/P-Shares Taiwan Top 50 ETF in December as positioning for buying by one set of index trackers pushes stocks into other indices.
There will be passive inflows in some of the forecast adds week after next and the flows from these index trackers will come a few weeks later.
With large AUMs tracking the dividend indices, stocks that have moved up a lot now have low dividend yields and there could be opposite flows from those index trackers.


Taiwan Top 50 ETF Rebalance Preview: Plenty of Big Overlapping Flows Coming Up

<ul>
<li>The TDIV index tracks the top 50 names in the Taiwan Stock Exchange with the highest dividend yields. It is a yield-weighted index with unique capping rules.</li>
<li>In this insight, we take look at Quiddity's expectations for index changes and capping flows for the TDIV Index for the September 2025 index rebal event.</li>
<li>Currently, we expect no changes for the TDIV index for the September 2025 review and we estimate the one-way capping flow to be US$662mn.</li>
</ul>


The TDIV index tracks the top 50 names in the Taiwan Stock Exchange with the highest dividend yields. It is a yield-weighted index with unique capping rules.
In this insight, we take look at Quiddity's expectations for index changes and capping flows for the TDIV Index for the September 2025 index rebal event.
Currently, we expect no changes for the TDIV index for the September 2025 review and we estimate the one-way capping flow to be US$662mn.


Quiddity Leaderboard TDIV Sep25: Sector-Neutral Pair Trade Ideas with Some High Impact Names

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 analyzed the changes in short interest of TWSE Stocks as of Jul 4th. The aggregated short interest was USD26.4bn.</li>
<li>We tabulate league tables for top short by value and short as multiple of ADT, as well as weekly increases &amp; decreases in short value, short as multiple of ADT.</li>
<li>We highlight short interest changes in Hon Hai Precision, Fubon Financial, Yuanta Financial, Chicony Electronics, Wistron, Yang Ming Marine.</li>
</ul>


We analyzed the changes in short interest of TWSE Stocks as of Jul 4th. The aggregated short interest was USD26.4bn.
We tabulate league tables for top short by value and short as multiple of ADT, as well as weekly increases &amp; decreases in short value, short as multiple of ADT.
We highlight short interest changes in Hon Hai Precision, Fubon Financial, Yuanta Financial, Chicony Electronics, Wistron, Yang Ming Marine.


TWSE Short Interest Weekly (Jul 4th): Hon Hai Precision, Fubon Financial, Yuanta Financial

<ul>
<li>We analyzed the changes in short interest of TWSE Stocks as of Jun 20th. The aggregated short interest was USD25.3bn.</li>
<li>We tabulate league tables for top short by value and short as multiple of ADT, as well as weekly increases &amp; decreases in short value, short as multiple of ADT.</li>
<li>We highlight short interest changes in Cathay Financial, Fubon Financial, TSMC, Asustek Computer, Wistron, Asia Vital Components.</li>
</ul>


We analyzed the changes in short interest of TWSE Stocks as of Jun 20th. The aggregated short interest was USD25.3bn.
We tabulate league tables for top short by value and short as multiple of ADT, as well as weekly increases &amp; decreases in short value, short as multiple of ADT.
We highlight short interest changes in Cathay Financial, Fubon Financial, TSMC, Asustek Computer, Wistron, Asia Vital Components.


TWSE Short Interest Weekly (Jun 20th): Cathay Financial, Fubon Financial, TSMC, Asustek Computer

Taiwan

The Shanghai Commercial & Savings Bank, Ltd. provides commercial banking services with a global presence. The Bank attracts deposits from the general public and uses those funds to originate a variety of loans. SCSB supports businesses by providing trade financing and foreign exchange services.

Price Gauge
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The Shanghai Commerical & Sa (5876 TT)

Quiddity Leaderboard T50/100 Dec25: Final Ranks; Tung Ho Escapes TDIV Deletion!

After the sharp jump in share price, Tung Ho Steel Enterprise (2006 TT) is unlikely to be deleted from T100 or TDIV in December 2025.

Janaghan Jeyakumar, CFA

Taiwan Top 50 ETF Rebalance Preview: Plenty of Big Overlapping Flows Coming Up

We currently forecast 4 changes for the ETF in Dec. That could increase to 5. Multiple stocks will have same-way flow from other index trackers...

Brian Freitas

Quiddity Leaderboard TDIV Sep25: Sector-Neutral Pair Trade Ideas with Some High Impact Names

Assuming no index changes take place in September 2025, we estimate one-way capping flows of US$662mn. Some of these names have fairly high impacts.

Janaghan Jeyakumar, CFA

TWSE Short Interest Weekly (Jul 4th): Hon Hai Precision, Fubon Financial, Yuanta Financial

We analyzed TWSE short interest report for the past week and highlighted short interest changes in Hon Hai Precision, Fubon Financial, Yuanta...

Ke Yan, CFA, FRM

TWSE Short Interest Weekly (Jun 20th): Cathay Financial, Fubon Financial, TSMC, Asustek Computer

We analyzed TWSE short interest report for the past week and highlighted short interest changes in Cathay Financial, Fubon Financial, TSMC, Asustek...

Ke Yan, CFA, FRM

Price Gauge

52-week Range

Market Cap (USDm)

P/E

Dividend (Yield)

Quiddity Leaderboard T50/​​​100 Dec25: Final Ranks; Tung Ho Escapes TDIV Deletion!

After the sharp jump in share price, Tung Ho Steel Enterprise (2006 TT) is unlikely to be deleted from T100 or TDIV in December 2025.

Janaghan Jeyakumar, CFA

Taiwan Top 50 ETF Rebalance Preview: Plenty of Big Overlapping Flows Coming Up

We currently forecast 4 changes for the ETF in Dec. That could increase to 5. Multiple stocks will have same-way flow from other index trackers...

Brian Freitas

Quiddity Leaderboard TDIV Sep25: Sector-Neutral Pair Trade Ideas with Some High Impact Names

Assuming no index changes take place in September 2025, we estimate one-way capping flows of US$662mn. Some of these names have fairly high impacts.

Janaghan Jeyakumar, CFA

TWSE Short Interest Weekly (Jul 4th): Hon Hai Precision, Fubon Financial, Yuanta Financial

We analyzed TWSE short interest report for the past week and highlighted short interest changes in Hon Hai Precision, Fubon Financial, Yuanta...

Ke Yan, CFA, FRM

TWSE Short Interest Weekly (Jun 20th): Cathay Financial, Fubon Financial, TSMC, Asustek Computer

We analyzed TWSE short interest report for the past week and highlighted short interest changes in Cathay Financial, Fubon Financial, TSMC, Asustek...

Ke Yan, CFA, FRM

Quiddity Leaderboard T50/100 Dec25: Final Ranks; Tung Ho Escapes TDIV Deletion!