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!

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 foreign holdings of TWSE Stocks as of Nov 21st. The aggregated holding was USD1,288.6bn.</li>
<li>We estimate that foreign flows to be outflows of USD4,241mln. We tabulate the league tables for top changes by value for 1W/4W/1Y and top stocks held by foreign institutions.</li>
<li>We highlight changes of foreign holdings in TSMC, Hon Hai Precision, Fubon Financial, ASE Industrial, Alchip Technologies, Ase Industrial, TSMC, Hon Hai Precision, Fubon Financial, Alchip Technologies.</li>
</ul>


We analyzed the changes in foreign holdings of TWSE Stocks as of Nov 21st. The aggregated holding was USD1,288.6bn.
We estimate that foreign flows to be outflows of USD4,241mln. We tabulate the league tables for top changes by value for 1W/4W/1Y and top stocks held by foreign institutions.
We highlight changes of foreign holdings in TSMC, Hon Hai Precision, Fubon Financial, ASE Industrial, Alchip Technologies, Ase Industrial, TSMC, Hon Hai Precision, Fubon Financial, Alchip Technologies.


TWSE Foreign Holding Weekly (Nov 21st): TSMC, Hon Hai Precision, Fubon Financial, ASE Industrial

<ul>
<li>We analyzed the changes in foreign holdings of TWSE Stocks as of Nov 14th. The aggregated holding was USD1,348.9bn.</li>
<li>We estimate that foreign flows to be outflows of USD1,286mln. We tabulate the league tables for top changes by value for 1W/4W/1Y and top stocks held by foreign institutions.</li>
<li>We highlight changes of foreign holdings in TSMC, Cleanaway, Hon Hai Precision, Delta Electronics, MediaTek, Cleanaway, TSMC, Hon Hai Precision, Delta Electronics, Mediatek.</li>
</ul>


We analyzed the changes in foreign holdings of TWSE Stocks as of Nov 14th. The aggregated holding was USD1,348.9bn.
We estimate that foreign flows to be outflows of USD1,286mln. We tabulate the league tables for top changes by value for 1W/4W/1Y and top stocks held by foreign institutions.
We highlight changes of foreign holdings in TSMC, Cleanaway, Hon Hai Precision, Delta Electronics, MediaTek, Cleanaway, TSMC, Hon Hai Precision, Delta Electronics, Mediatek.


TWSE Foreign Holding Weekly (Nov 14th): TSMC, Cleanaway, Hon Hai Precision, Delta Electronics

<ul>
<li>We analyzed the changes in short interest of TWSE Stocks as of Nov 14th. The aggregated short interest was USD28.4bn.</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 Jentech Precision Industrial, Asia Vital Components, WT Microelectronics, Accton Technology, Nanya Technology, Jentech Precision Industrial, Asia Vital Components, WT Microelectronics, Accton Technology, Nanya Technology.</li>
</ul>


We analyzed the changes in short interest of TWSE Stocks as of Nov 14th. The aggregated short interest was USD28.4bn.
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 Jentech Precision Industrial, Asia Vital Components, WT Microelectronics, Accton Technology, Nanya Technology, Jentech Precision Industrial, Asia Vital Components, WT Microelectronics, Accton Technology, Nanya Technology.


TWSE Short Interest Weekly (Nov 14th): Jentech Precision Industrial, Asia Vital Components

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

Taiwan

Nanya Technology Corp. manufactures and markets dynamic random access memories (DRAMs).  The Company sells its products in Taiwan and exports worldwide.

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Nanya Technology (2408 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

TWSE Foreign Holding Weekly (Nov 21st): TSMC, Hon Hai Precision, Fubon Financial, ASE Industrial

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in TSMC (2330 TT), Hon Hai Precision (2317 TT),...

Ke Yan, CFA, FRM

TWSE Foreign Holding Weekly (Nov 14th): TSMC, Cleanaway, Hon Hai Precision, Delta Electronics

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in TSMC (2330 TT), Cleanaway (8422 TT), Hon Hai...

Ke Yan, CFA, FRM

TWSE Short Interest Weekly (Nov 14th): Jentech Precision Industrial, Asia Vital Components

We analyzed TWSE short interest report for the past week and highlighted short interest changes in Jentech Precision Industrial (3653 TT), Asia...

Ke Yan, CFA, FRM

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

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

TWSE Foreign Holding Weekly (Nov 21st): TSMC, Hon Hai Precision, Fubon Financial, ASE Industrial

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in TSMC (2330 TT), Hon Hai Precision (2317 TT),...

Ke Yan, CFA, FRM

TWSE Foreign Holding Weekly (Nov 14th): TSMC, Cleanaway, Hon Hai Precision, Delta Electronics

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in TSMC (2330 TT), Cleanaway (8422 TT), Hon Hai...

Ke Yan, CFA, FRM

TWSE Short Interest Weekly (Nov 14th): Jentech Precision Industrial, Asia Vital Components

We analyzed TWSE short interest report for the past week and highlighted short interest changes in Jentech Precision Industrial (3653 TT), Asia...

Ke Yan, CFA, FRM

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