How many companies are in the S&P 500?

504 share classes from 500 companies (a handful have dual share classes).

How is the S&P 500 weighted?

Market-capitalisation weighted based on public float.

Who administers the index?

S&P Dow Jones Indices, a joint venture between S&P Global and CME Group.

Index · United States · Trades on NYSE + NASDAQ

S&P 500 — Standard & Poor's 500

The benchmark of the U.S. large-cap equity market.

About the S&P 500

The S&P 500 is a market-capitalisation-weighted index of 500 leading U.S. publicly traded companies, widely considered the single best gauge of large-cap U.S. equities. Components are selected by committee and span both NYSE and NASDAQ listings.

Notable Constituents

A sample of the largest companies in the S&P 500 — all available via the Stock Market API.

AAPL

Apple

MSFT

Microsoft

NVDA

NVIDIA

GOOGL

Alphabet

AMZN

Amazon

API coverage for the S&P 500

Fetch the index membership list or query any constituent's data directly.

Index Members

List every constituent currently in the index.

GET /api/v1/indices/SP500

Constituent Financials

Full income statement, balance sheet, and cash flow per company.

GET /api/v1/companies/{ticker}/financials

Start querying S&P 500 data

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Frequently Asked Questions

How many companies are in the S&P 500?: 504 share classes from 500 companies (a handful have dual share classes).
How is the S&P 500 weighted?: Market-capitalisation weighted based on public float.
Who administers the index?: S&P Dow Jones Indices, a joint venture between S&P Global and CME Group.