Index Rebal/Special Situations, Quiddity Advisors

Janaghan Jeyakumar, CFA

Index Rebal/Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

Index Rebalance

The Shanghai Commerical & Sa / 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>In this insight, we take a look at the potential ADDs and DELs for the December 2025 index rebal event.</li>
<li>We currently see three changes for T50 and three other changes for T100 in December 2025.</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).
In this insight, we take a look at the potential ADDs and DELs for the December 2025 index rebal event.
We currently see three changes for T50 and three other changes for T100 in December 2025.


Quiddity Leaderboard T50/​​​100 Dec25: High-Impact Passive Sell-Off for Shanghai Commercial (5876)

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 Oct 17th. The aggregated holding was USD1,379.7bn.</li>
<li>We estimate that foreign flows to be outflows of USD2,539mln. 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, ASE Industrial, Wistron, Delta Electronics, Hon Hai Precision, Ase Industrial, TSMC, Wistron, Delta Electronics.</li>
</ul>


We analyzed the changes in foreign holdings of TWSE Stocks as of Oct 17th. The aggregated holding was USD1,379.7bn.
We estimate that foreign flows to be outflows of USD2,539mln. 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, ASE Industrial, Wistron, Delta Electronics, Hon Hai Precision, Ase Industrial, TSMC, Wistron, Delta Electronics.


TWSE Foreign Holding Weekly (Oct 17th): TSMC, Hon Hai Precision, ASE Industrial, Wistron

<ul>
<li>We analyzed the changes in foreign holdings of TWSE Stocks as of Oct 10th. The aggregated holding was USD1,381.0bn.</li>
<li>We estimate that foreign flows to be outflows of USD139mln. 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, Delta Electronics, China Development Financial, Quanta Computer, Hon Hai Precision, China Development Financial, Quanta Computer, TSMC, Delta Electronics, Hon Hai Precision.</li>
</ul>


We analyzed the changes in foreign holdings of TWSE Stocks as of Oct 10th. The aggregated holding was USD1,381.0bn.
We estimate that foreign flows to be outflows of USD139mln. 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, Delta Electronics, China Development Financial, Quanta Computer, Hon Hai Precision, China Development Financial, Quanta Computer, TSMC, Delta Electronics, Hon Hai Precision.


TWSE Foreign Holding Weekly (Oct 10th): TSMC, Delta Electronics, China Development Financial

<ul>
<li>We analyzed the changes in foreign holdings of TWSE Stocks as of Oct 3rd. The aggregated holding was USD1,352.5bn.</li>
<li>We estimate that foreign flows to be inflows of USD1,460mln. 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, MediaTek, Hon Hai Precision, Quanta Computer, Wistron, TSMC, Hon Hai Precision, Quanta Computer, Wistron, Mediatek.</li>
</ul>


We analyzed the changes in foreign holdings of TWSE Stocks as of Oct 3rd. The aggregated holding was USD1,352.5bn.
We estimate that foreign flows to be inflows of USD1,460mln. 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, MediaTek, Hon Hai Precision, Quanta Computer, Wistron, TSMC, Hon Hai Precision, Quanta Computer, Wistron, Mediatek.


TWSE Foreign Holding Weekly (Oct 3rd): TSMC, MediaTek, Hon Hai Precision, Quanta Computer, Wistron

<ul>
<li>We analyzed the changes in foreign holdings of TWSE Stocks as of Sep 26th. The aggregated holding was USD1,269.4bn.</li>
<li>We estimate that foreign flows to be outflows of USD18mln. 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 MediaTek, Hon Hai Precision, TSMC, Wistron, Quanta Computer, Hon Hai Precision, Wistron, Quanta Computer, Mediatek, TSMC.</li>
</ul>


We analyzed the changes in foreign holdings of TWSE Stocks as of Sep 26th. The aggregated holding was USD1,269.4bn.
We estimate that foreign flows to be outflows of USD18mln. 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 MediaTek, Hon Hai Precision, TSMC, Wistron, Quanta Computer, Hon Hai Precision, Wistron, Quanta Computer, Mediatek, TSMC.


TWSE Foreign Holding Weekly (Sep 26th): MediaTek, Hon Hai Precision, TSMC, Wistron, Quanta Computer

Taiwan

Chailease Holding Co Ltd provides financing services such as leasing, installment sale, import/export factoring and direct financing.

Price Gauge
52-week Range	0.00 - 0.00
Market Cap (USDm)	0.00
P/E	0.00
Dividend (Yield)	0.00

Chailease Holding (5871 TT)

Quiddity Leaderboard T50/100 Dec25: High-Impact Passive Sell-Off for Shanghai Commercial (5876)

There could be ~19x ADV of net passive selling for Shanghai Commerical (5876 TT). Separately, Tung Ho Steel (2006 TT) could get deleted from T100...

Janaghan Jeyakumar, CFA

TWSE Foreign Holding Weekly (Oct 17th): TSMC, Hon Hai Precision, ASE Industrial, Wistron

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

Ke Yan, CFA, FRM

TWSE Foreign Holding Weekly (Oct 10th): TSMC, Delta Electronics, China Development Financial

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in TSMC (2330 TT), Delta Electronics (2308 TT),...

Ke Yan, CFA, FRM

TWSE Foreign Holding Weekly (Oct 3rd): TSMC, MediaTek, Hon Hai Precision, Quanta Computer, Wistron

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in TSMC (2330 TT), MediaTek (2454 TT), Hon Hai...

Ke Yan, CFA, FRM

TWSE Foreign Holding Weekly (Sep 26th): MediaTek, Hon Hai Precision, TSMC, Wistron, Quanta Computer

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in MediaTek (2454 TT), Hon Hai Precision (2317 TT),...

Ke Yan, CFA, FRM

Price Gauge

52-week Range

Market Cap (USDm)

P/E

Dividend (Yield)

Quiddity Leaderboard T50/​​​100 Dec25: High-Impact Passive Sell-Off for Shanghai Commercial (5876)

There could be ~19x ADV of net passive selling for Shanghai Commerical (5876 TT). Separately, Tung Ho Steel (2006 TT) could get deleted from T100...

Janaghan Jeyakumar, CFA

TWSE Foreign Holding Weekly (Oct 17th): TSMC, Hon Hai Precision, ASE Industrial, Wistron

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

Ke Yan, CFA, FRM

TWSE Foreign Holding Weekly (Oct 10th): TSMC, Delta Electronics, China Development Financial

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in TSMC (2330 TT), Delta Electronics (2308 TT),...

Ke Yan, CFA, FRM

TWSE Foreign Holding Weekly (Oct 3rd): TSMC, MediaTek, Hon Hai Precision, Quanta Computer, Wistron

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in TSMC (2330 TT), MediaTek (2454 TT), Hon Hai...

Ke Yan, CFA, FRM

TWSE Foreign Holding Weekly (Sep 26th): MediaTek, Hon Hai Precision, TSMC, Wistron, Quanta Computer

We analyzed TWSE foreign holding data for the past week and highlighted foreign holding changes in MediaTek (2454 TT), Hon Hai Precision (2317 TT),...

Ke Yan, CFA, FRM

Quiddity Leaderboard T50/100 Dec25: High-Impact Passive Sell-Off for Shanghai Commercial (5876)