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 present our final expectations for ASX 300, 200, 100, 50, and 20 for the September 2026 index rebal event.</li>
<li>We expect two changes for ASX 50, one change for ASX 100, and five changes for ASX 200. Separately, we see 13 ADDs and 10 DELs for ASX 300.</li>
<li>The Vault minerals deal could trigger index changes <em>after</em> the September 2026 index review.</li>
</ul>


In this insight, we present our final expectations for ASX 300, 200, 100, 50, and 20 for the September 2026 index rebal event.
We expect two changes for ASX 50, one change for ASX 100, and five changes for ASX 200. Separately, we see 13 ADDs and 10 DELs for ASX 300.
The Vault minerals deal could trigger index changes after the September 2026 index review.


Quiddity Leaderboard ASX Sep26: Final Expectations; Many High-Impact Names

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>The <a href="https://www.smartkarma.com/entities/genesis-minerals-ltd" target="_blank" data-smartkarma-citation="entities:4650:1" rel="noopener">Genesis Minerals (GMD AU)</a>/ <a href="https://www.smartkarma.com/entities/vault-minerals-ltd" target="_blank" data-smartkarma-citation="entities:46317:1" rel="noopener">Vault Minerals Ltd (VAU AU)</a> merger should complete mid-November while <a href="https://www.smartkarma.com/entities/steadfast-group-ltd" target="_blank" data-smartkarma-citation="entities:8181:1" rel="noopener">Steadfast (SDF AU)</a>'s acquisition could complete by end-November.</li>
<li>There will be ad hoc inclusions for the S&amp;P/ASX 100 Index and <a href="https://www.smartkarma.com/entities/s-p-asx-200" target="_blank" data-smartkarma-citation="entities:22901:1" rel="noopener">S&amp;P/ASX 200 Index</a> following the merger and the acquisition to maintain the number of index constituents.</li>
<li>Then there will be more changes for the S&amp;P/ASX 50 Index, S&amp;P/ASX 100 Index and <a href="https://www.smartkarma.com/entities/s-p-asx-200" target="_blank" data-smartkarma-citation="entities:22901:1" rel="noopener">S&amp;P/ASX 200 Index</a> at the December rebalance.</li>
</ul>


The Genesis Minerals (GMD AU)/ Vault Minerals Ltd (VAU AU) merger should complete mid-November while Steadfast (SDF AU)'s acquisition could complete by end-November.
There will be ad hoc inclusions for the S&amp;P/ASX 100 Index and S&amp;P/ASX 200 Index following the merger and the acquisition to maintain the number of index constituents.
Then there will be more changes for the S&amp;P/ASX 50 Index, S&amp;P/ASX 100 Index and S&amp;P/ASX 200 Index at the December rebalance.


S&P/ASX Indices: M&A-Driven Ad Hoc Changes in Nov & Impact on the Dec Rebalance

<ul>
<li>In this insight, we present our expectations for ASX 200, 100, 50, and 20 for the December 2026 index rebal event.</li>
<li>We expect one change for ASX 100 and six changes for ASX 200. We do not see any changes for ASX 20 and ASX 50.</li>
<li>There could also be intra-review index changes over the next few months. By our current measure, those will be quite big in dollar terms and ADV impact.</li>
</ul>


In this insight, we present our expectations for ASX 200, 100, 50, and 20 for the December 2026 index rebal event.
We expect one change for ASX 100 and six changes for ASX 200. We do not see any changes for ASX 20 and ASX 50.
There could also be intra-review index changes over the next few months. By our current measure, those will be quite big in dollar terms and ADV impact.


Quiddity Leaderboard ASX Dec26: Multiple Changes During the Rebal + Some Intra-Review 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

Shenton Research

Shenton 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.

<ul>
<li>ASX 200 rebalance will be effective on 21 Sep 2026 before market open, with 5 ADDs and 5 DELETEs.</li>
<li>Four of the five ADDs gained over the bridge window, led by Sunrise Energy Metals at +28.1%. Tuas was the only DELETE to gain.</li>
<li>Historically, ADDs with a positive bridge were evenly split between first-week gains and losses. DELETEs mostly fell in the first implementation week after either bridge direction.</li>
</ul>


ASX 200 rebalance will be effective on 21 Sep 2026 before market open, with 5 ADDs and 5 DELETEs.
Four of the five ADDs gained over the bridge window, led by Sunrise Energy Metals at +28.1%. Tuas was the only DELETE to gain.
Historically, ADDs with a positive bridge were evenly split between first-week gains and losses. DELETEs mostly fell in the first implementation week after either bridge direction.


ASX 200 Sep 2026 Index Rebalance: Pre-Implementation Update

<ul>
<li>The ADDs/DELs for the ASX index family for the September 2026 index rebal event were announced after market close on Friday 4th September 2026.</li>
<li>There are 24 ADDs and 21 DELs collectively for ASX 20, ASX 50, ASX 100, ASX 200 and ASX 300.</li>
<li>In this insight, we take a look at our final flow expectations for each of these confirmed index changes.</li>
</ul>


The ADDs/DELs for the ASX index family for the September 2026 index rebal event were announced after market close on Friday 4th September 2026.
There are 24 ADDs and 21 DELs collectively for ASX 20, ASX 50, ASX 100, ASX 200 and ASX 300.
In this insight, we take a look at our final flow expectations for each of these confirmed index changes.


Quiddity ASX Sep26 Results: 92% of Predictions Correct; More Changes for ASX 300 than We Expected

Australia

Weebit Nano Ltd develops a silicon oxide resistive random access memory technology for the semiconductor industry. The Company's products are used in various applications, such as in smartphones and tablets, healthcare, automotive, storable content, and cloud data center device connectivity. Weebit Nano operates in Australia and Israel.

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Weebit Nano Ltd (WBT AU)

Quiddity Leaderboard ASX Sep26: Final Expectations; Many High-Impact Names

The ADDs/DELs for the September 2026 index rebalance will be confirmed after market close on 4th September 2026 and the Inclusion/Exclusion events...

Janaghan Jeyakumar, CFA

S&P/ASX Indices: M&A-Driven Ad Hoc Changes in Nov & Impact on the Dec Rebalance

The Genesis/Vault merger and the Steadfast acquisition are expected to complete in Nov. That leads to adhoc index inclusions and other flows. Then...

Brian Freitas

Quiddity Leaderboard ASX Dec26: Multiple Changes During the Rebal + Some Intra-Review Changes

Although we currently see zero changes for ASX 50, there are multiple potential DELs close to the deletion border. If they underperform other...

Janaghan Jeyakumar, CFA

ASX 200 Sep 2026 Index Rebalance: Pre-Implementation Update

S&P/ASX 200 enters implementation on 21 Sep 2026. We update post-announcement stock performance and discuss implementation trades.

Ke Yan, CFA, FRM

Quiddity ASX Sep26 Results: 92% of Predictions Correct; More Changes for ASX 300 than We Expected

Most of the confirmed index changes have multiple days of volume to trade. The ASX 300 ADDs/DELs have comparatively insignificant flow sizes.

Janaghan Jeyakumar, CFA

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