Pan-Asia Index Rebalances/ Events/ Delta One, Periscope Analytics

Brian Freitas

Highly experienced ex-Delta One trader with 17 years of experience trading arbitrage and related strategies across Asian markets.

Exempt Financial Adviser (EFA) under CrossASEAN Research Pte Ltd.

It is important to note that the information provided by Periscope Analytics is based on publicly available data and own knowledge, which has been gathered and synthesized from a variety of sources. While every effort has been made to ensure the accuracy and completeness of the information provided, it is not guaranteed to be free from errors or omissions.

All forecasts and estimates are based on information that has been obtained from public sources that are considered to be reliable. The sources include, but are not limited to, company announcements, exchange filings, ETF and other passive investment vehicle holdings, and free float and volume data from third-party data providers. Periscope Analytics does not guarantee the accuracy and completeness of the forecasts, estimates and/or other information.

Pan-Asia Index Rebalances/ Events/ Delta One

Gold Miners ETF (GDX US) March Rebalance Preview: 6 Adds & US$6.7bn Trade

S&P/​​​​ASX Index Rebalance (Mar 2026): 43 Changes Across Indices as Adds Outperform Deletes

Gold Miners ETF (GDX US) March Rebalance Preview: Capping Finalised; Announcement on Friday

S&P/​​​​​​​​​ASX Index Rebalance Preview (Sep 25): Potential Changes if Methodology Is Updated

Gold Miners ETF (GDX US) March Rebalance: 3 Adds and US$4.7bn Trade for Now

S&P/​​​​​​​​​ASX Index Rebalance Preview (Dec 25): Changes Across Indices as Positioning Picks Up

Gold Miners ETF (GDX US) March Rebalance: 2 Adds Likely; US$5bn Trade

Gold Miners ETF (GDX US) Dec Rebalance: 5 Adds and US$8.8bn Trade; Zijin Gold Added

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

Index Rebalance

<ul>
<li>There could be 1 change for the ASX20, 2 for the ASX50, 3 for the ASX100, 4 for the <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</a> and 17 adds/10 deletes for the ASX300 in March.</li>
<li>Passive trackers will need to trade a lot of stock in the forecast changes, with the impact being especially large for the changes to the <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 (AS51 INDEX)</a>. </li>
<li>While the forecast adds have outperformed the forecast deletes over the last few months, there was a drawdown for most indices in January. Most of that underperformance has now reversed.</li>
</ul>


There could be 1 change for the ASX20, 2 for the ASX50, 3 for the ASX100, 4 for the S&amp;P/ASX 200 and 17 adds/10 deletes for the ASX300 in March.
Passive trackers will need to trade a lot of stock in the forecast changes, with the impact being especially large for the changes to the S&amp;P/ASX 200 (AS51 INDEX). 
While the forecast adds have outperformed the forecast deletes over the last few months, there was a drawdown for most indices in January. Most of that underperformance has now reversed.


S&P/​​​​​​​​​ASX Index Rebalance Preview (Mar 26): Plenty of Change with Big Flow & Impact

Regis Resources

S&P/ASX Index Rebalance Preview (Mar 26): Plenty of Change with Big Flow & Impact

Regis Resources

S&P/​​​​​​​​​ASX Index Rebalance Preview (Mar 26): Plenty of Change with Big Flow & Impact

S&P/ASX Index Rebalance Preview (Mar 26): Plenty of Change with Big Flow & Impact