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

Nikkei225 Index Capping: Tokyo Electron, Advantest & The Reverse Funding Trade

Nikkei 225 Index Rebalance Preview (Mar 2026): Potential Adds, Deletes, Capping & Other Changes

JPX Nikkei 400 Index Rebalance: US$6.4bn Round-Trip Trade Coming Up

Softbank Group (9984 JP): Breaks Through the 10% Nikkei225 Cap

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 are 45 adds/39 deletes for the JPX Nikkei400 Index to bring the number of index constituents back to 400. There are many stocks with multiple days ADV to trade.</li>
<li>Based on the adds, deletes and capping changes, we estimate one way turnover of 8.1% and a round-trip trade of JPY 1,424bn (US$9bn).</li>
<li>The adds have been floundering versus the deletes over the last few months and there could be some outperformance heading into implementation of the changes.</li>
</ul>


There are 45 adds/39 deletes for the JPX Nikkei400 Index to bring the number of index constituents back to 400. There are many stocks with multiple days ADV to trade.
Based on the adds, deletes and capping changes, we estimate one way turnover of 8.1% and a round-trip trade of JPY 1,424bn (US$9bn).
The adds have been floundering versus the deletes over the last few months and there could be some outperformance heading into implementation of the changes.


Sumitomo Mitsui Financial Group (8316 JP)

Mitsubishi UFJ Financial (MUFG) (8306 JP)

NTT (Nippon Telegraph & Telephone) (9432 JP)

JPX Nikkei 400 Index Rebalance: 45 Adds; 39 Deletes; US$9bn Trade

T&D Holdings

JPX Nikkei 400 Index Rebalance: 45 Adds; 39 Deletes; US$9bn Trade