Indices Historical Constituents Data API

"Index" is the singular form, and both "indexes" and "indices" can be used as the plural form, depending on the context. In relation to S&P data, "indices" is widely used.

In the context of the S&P 500 index, "constituent" and "component" often refer to the individual stocks included in the index. "Constituent" typically emphasizes the companies whose shares are part of the index. For example, "Apple is a constituent of the S&P 500" highlights Apple's inclusion in the index. On the other hand, "component" usually focuses on the stocks or securities themselves, such as "The components of the S&P 500 include tech and financial stocks." While there is a subtle difference, these terms are frequently used interchangeably.

We have a direct contract with S&P Global. We take raw data, process and structure it, making it available as a simple API endpoint.

Use the Index Snapshot endpoint: it returns the list of components of the S&P 500, S&P MidCap 400 or S&P SmallCap 600 with their weights on any date since November 22, 2022. For earlier dates and for the other indices, the Index Components endpoint returns the history of changes with the date of each addition and exclusion.

S&P and Dow Jones data is updated daily.

Our support team is available 24/7 and can be reached via web chat on our site or by email.

EODHD users with access to Fundamental data (All-in-One & Fundamental Data plans) can obtain current constituent lists for all major indices. However, the data is limited compared to the S&P Global dataset on this page:

• Only basic fields: Code, Exchange, Name, Sector, and Industry (no Weight history, no corporate actions)
• Historical snapshots are available only for the S&P 500 (GSPC.INDX)

The S&P Global dataset offered above covers 100+ indices with the history of changes since 2012 and daily snapshots with weights.


Fundamental API documentation