Historical S&P 500 API

The FMP Historical S&P 500 API provides comprehensive historical data on changes to the S&P 500 index. This includes information on when companies were added or removed, along with the reasons behind these changes. It is an essential tool for analysts, portfolio managers, and researchers who need to track historical performance and trends within this key stock index. Key features include:

• Additions & Removals: Access historical records of companies added to or removed from the S&P 500, including relevant dates and reasons for the changes.
• Market Capitalization Changes: Track changes in the index composition driven by shifts in market capitalization.
• Historical Index Insights: Analyze how the composition of the S&P 500 has evolved over time and how these changes impact market performance.
• Company-Specific Data: Retrieve details about each company that has been added or removed, including symbols and company names.

This API is particularly useful for financial analysts, researchers, and portfolio managers who want to analyze how changes in the S&P 500 index affect long-term market trends.

Example Use Case
A financial researcher uses the Historical S&P 500 API to study how the composition of the index has changed over the last decade. By analyzing additions and removals, such as the recent inclusion of Dell Technologies (DELL) in place of Etsy (ETSY), they can assess how shifts in market capitalization and industry representation affect overall index performance.