New calendar for tracking 7,000+ global benchmark indices to plan ahead and respond precisely to index reconstitutions changes.
London, United Kingdom // August 12, 2026 – Exchange Data International (EDI), a leading provider of global securities data, today introduced the Index Rebalancing Calendar that helps investors, analysts, and financial professionals track constituent change announcements and effective rebalancing dates across more than 7,000 global and domestic benchmark indices.
Index providers periodically revise benchmark composition by adding or removing constituents based on criteria such as market capitalization, liquidity, and sector classification. These reconstitution events can generate significant trading activity and directly affect portfolios benchmarked against those indices. The Index Rebalancing Calendar maintains alignment with index provider schedules, enabling investors and analysts to stay informed, plan with precision, and respond promptly to changes that influence portfolios and market behavior.
Explore how the Index Rebalancing Calendar can streamline your index monitoring.
View the Product Overview or contact EDI for a demo via info@exchange-data.com.
The Index Rebalancing Calendar provides comprehensive coverage of:
- 7,000+ benchmark indices spanning global and domestic financial markets.
- 25 standardized data points per index, capturing both reference information and rebalancing schedules.
- Leading index providers: S&P Dow Jones Indices, FTSE Russell, CBOE Indices, ETF-linked underlying indices, and derivative contract indices.
- Daily monitoring by EDI’s data collection team, with scheduled calendar dates extracted directly from official index provider publications as soon as they become available.
- Email alerts for forthcoming rebalancing and reconstitution events.
- Customizable filters and searches to focus on indices relevant to your portfolio.
- Supports flexible delivery via online access, API, CSV, and TXT formats.
„Index rebalancing events can significantly impact trading activity and portfolio performance, but tracking announcements and effective dates across multiple providers has always been fragmented and time-consuming. The Index Rebalancing Calendar consolidates this information into a single, structured view, giving analysts and investors the visibility they need to plan ahead and respond with precision.“ said Jonathan Bloch CEO of Exchange Data International commented.
The Index Rebalancing Calendar distinguishes between two key dates that investment professionals must monitor. The announcement date marks when an index provider officially publishes details of forthcoming constituent additions or deletions, while the effective date is when those changes are actually applied to the index composition. By tracking both dates for each index, teams can plan operations around the full timeline of index changes and prepare workflows in advance.
In addition to standalone benchmarks, the calendar integrates underlying indices linked to ETFs and derivative contracts, ensuring broad visibility across critical index families. Daily updates from EDI’s monitoring of official index provider sources keep the calendar current as new rebalancing dates are published.
About Exchange Data International
Exchange Data International (EDI) is a leading provider of global securities data, delivering high-quality, comprehensive market data to financial institutions worldwide. Specialising in pricing, corporate actions, and reference data, EDI helps clients navigate complex global markets with reliable, timely, and customizable market data.
Media Contact
Exchange Data International
Romy Threadgold
r.threadgold@exchange-data.com
Romy Threadgold is the Head of Marketing at Exchange Data International (EDI), where she has been shaping the company’s marketing strategy for over six years. With extensive experience in the financial data industry, Romy is a key driver of EDI’s brand development, client engagement, and communications initiatives.
As a seasoned marketing professional, Romy’s strategic insights and innovative approach continue to solidify EDI’s reputation as a leading provider of financial data