Index Rebal/Special Situations, Quiddity Advisors

Janaghan Jeyakumar, CFA

Index Rebal/Special Situations

Quiddity Advisors

Pan-Asia Catalysts/Events

Index Rebalance

<ul>
<li>In this insight, we take a look at the potential index changes for ASX 300, 200, 100, 50, and 20 in the run-up to the September 2025 index rebal event.</li>
<li>We expect one change for ASX 50, three changes for ASX 100, and four changes for ASX 200. Separately we see 9 ADDs and 7 DELs for ASX 300.</li>
<li>The official index changes will be announced after the close on Friday 5th September 2025.</li>
</ul>


In this insight, we take a look at the potential index changes for ASX 300, 200, 100, 50, and 20 in the run-up to the September 2025 index rebal event.
We expect one change for ASX 50, three changes for ASX 100, and four changes for ASX 200. Separately we see 9 ADDs and 7 DELs for ASX 300.
The official index changes will be announced after the close on Friday 5th September 2025.


Quiddity Leaderboard ASX Sep25: Spartan-Ramelius Deal Consequences + Many High-Impact Index Changes

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 ASX Stocks as of May 9th (reported today) which has an aggregated short interest worth USD25.7bn.</li>
<li>We tabulate league table 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 Santos, Origin Energy, Jb Hi-Fi, Northern Star Resources, Transurban, Asx.</li>
</ul>


We analyzed the changes in short interest of ASX Stocks as of May 9th (reported today) which has an aggregated short interest worth USD25.7bn.
We tabulate league table 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 Santos, Origin Energy, Jb Hi-Fi, Northern Star Resources, Transurban, Asx.


ASX Short Interest Weekly (May 9th): Santos, Origin Energy, Jb Hi-Fi, Northern Star Resources

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>
<a href="https://www.smartkarma.com/entities/de-grey-mining-ltd" target="_blank" data-smartkarma-citation="entities:6192:1" rel="noopener">De Grey Mining (DEG AU)</a>, <a href="https://www.smartkarma.com/entities/perseus-mining-ltd" target="_blank" data-smartkarma-citation="entities:15306:1" rel="noopener">Perseus Mining (PRU AU)</a> and <a href="https://www.smartkarma.com/entities/sandfire-resources-limited" target="_blank" data-smartkarma-citation="entities:1259:1" rel="noopener">Sandfire Resources Limited (SFR AU)</a> will be added to the <a href="https://www.smartkarma.com/entities/vaneck-vectors-australian-re" target="_blank" data-smartkarma-citation="entities:30999:1" rel="noopener">Vaneck Vectors Australian Resources ETF (MVR AU)</a> in December.</li>
<li>Constituent changes, float changes and capping changes result in an estimated one-way turnover of 7.4% and in a round-trip trade of A$63m.</li>
<li>
<a href="https://www.smartkarma.com/entities/de-grey-mining-ltd" target="_blank" data-smartkarma-citation="entities:6192:1" rel="noopener">De Grey Mining</a> will be acquired by <a href="https://www.smartkarma.com/entities/northern-star-resources-ltd" target="_blank" data-smartkarma-citation="entities:4243:1" rel="noopener">Northern Star Resources</a> in the first half of 2025. The passive buying could push <a href="https://www.smartkarma.com/entities/de-grey-mining-ltd" target="_blank" data-smartkarma-citation="entities:6192:1" rel="noopener">De Grey Mining</a> higher in the short-term.</li>
</ul>



De Grey Mining (DEG AU), Perseus Mining (PRU AU) and Sandfire Resources Limited (SFR AU) will be added to the Vaneck Vectors Australian Resources ETF (MVR AU) in December.
Constituent changes, float changes and capping changes result in an estimated one-way turnover of 7.4% and in a round-trip trade of A$63m.

De Grey Mining will be acquired by Northern Star Resources in the first half of 2025. The passive buying could push De Grey Mining higher in the short-term.


MVIS Australia Resources Index Rebalance: 3 Adds, Capping & Float Changes

<ul>
<li>
<a href="https://www.smartkarma.com/entities/pro-medicus-ltd" target="_blank" data-smartkarma-citation="entities:13516:1" rel="noopener">Pro Medicus Ltd (PME AU)</a> will be added to the MV Australia Equal Weight Index while <a href="https://www.smartkarma.com/entities/igo-ltd" target="_blank" data-smartkarma-citation="entities:462:1" rel="noopener">IGO Ltd (IGO AU)</a> and <a href="https://www.smartkarma.com/entities/nib-holdings-ltd" target="_blank" data-smartkarma-citation="entities:7063:1" rel="noopener">nib holdings (NHF AU)</a> will be deleted.</li>
<li>Constituent changes, float changes and capping changes result in a one-way turnover of 6.9% leading to a round-trip trade of A$330m.</li>
<li>Shorts are pretty big in <a href="https://www.smartkarma.com/entities/pro-medicus-ltd" target="_blank" data-smartkarma-citation="entities:13516:1" rel="noopener">Pro Medicus Ltd (PME AU)</a> while there has been a recent spike in short interest for <a href="https://www.smartkarma.com/entities/igo-ltd" target="_blank" data-smartkarma-citation="entities:462:1" rel="noopener">IGO Ltd (IGO AU)</a>. </li>
</ul>



Pro Medicus Ltd (PME AU) will be added to the MV Australia Equal Weight Index while IGO Ltd (IGO AU) and nib holdings (NHF AU) will be deleted.
Constituent changes, float changes and capping changes result in a one-way turnover of 6.9% leading to a round-trip trade of A$330m.
Shorts are pretty big in Pro Medicus Ltd (PME AU) while there has been a recent spike in short interest for IGO Ltd (IGO AU). 


MV Australia Equal Weight Index Rebalance: One Add, Two Deletes, Capping to Drive Flow

<ul>
<li>With 2 days left to review cutoff, there could be 1 inclusion and 3 deletions for the index at the September rebalance.</li>
<li>Even if there are no constituent changes, capping changes will lead to one-way turnover of 4.4% and a round-trip trade of A$212m.</li>
<li>The final list of inclusions/exclusions will depend on price movements till Friday and whether the index provider makes any significant changes to the free float of stocks in the universe.</li>
</ul>


With 2 days left to review cutoff, there could be 1 inclusion and 3 deletions for the index at the September rebalance.
Even if there are no constituent changes, capping changes will lead to one-way turnover of 4.4% and a round-trip trade of A$212m.
The final list of inclusions/exclusions will depend on price movements till Friday and whether the index provider makes any significant changes to the free float of stocks in the universe.


MV Australia Equal Weight Index Rebalance Preview: One Add & A Few Deletes

Australia

IGO Limited operates as an exploration company. The Company explores and mines copper, ore, nickel, gold, and other mineral resources. IGO serves customers worldwide.

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IGO Ltd (IGO AU)

Quiddity Leaderboard ASX Sep25: Spartan-Ramelius Deal Consequences + Many High-Impact Index Changes

The expected ADDs have strong positive momentum against the expected DELs. Since most names have decent flow impact, the outperformance could...

Janaghan Jeyakumar, CFA

ASX Short Interest Weekly (May 9th): Santos, Origin Energy, Jb Hi-Fi, Northern Star Resources

We analyzed ASX short interest report for the past week and highlight short interest changes in Santos, Origin Energy, Jb Hi-Fi, Northern Star...

Ke Yan, CFA, FRM

MVIS Australia Resources Index Rebalance: 3 Adds, Capping & Float Changes

De Grey Mining, Perseus Mining and Sandfire Resources will be added to the MVR ETF in December. Estimated one-way turnover is 7.4% resulting in a...

Brian Freitas

MV Australia Equal Weight Index Rebalance: One Add, Two Deletes, Capping to Drive Flow

PME is an add. NHF and IGO are deletes. Constituent changes, float changes and capping changes result in a one-way turnover of 6.9% leading to a...

Brian Freitas

MV Australia Equal Weight Index Rebalance Preview: One Add & A Few Deletes

There could be 1 add and 3 deletes in Sep. Even if there are no constituent changes, capping changes will lead to one-way turnover of 4.4% and a...

Brian Freitas

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