What is the S&P 100 index?

The S&P 100 is a stock market index maintained by Standard & Poor's that includes 100 of the largest companies in the S&P 500. These are major blue-chip stocks from various sectors, representing approximately 60% of the market capitalization of the entire S&P 500. Companies included are typically industry leaders with high liquidity and market capitalization.

How do I compare companies using this tool?

To compare companies, click the compare icon (two arrows) on any company card. You can select up to 5 companies for side-by-side comparison. Once selected, a comparison panel appears showing key metrics like Revenue YoY, EPS YoY, CAGR, and includes a historical growth chart for visual comparison.

What metrics are available for each company?

Each company profile includes: TTM (Trailing Twelve Months) Revenue and EPS, Year-over-Year growth rates for both Revenue and EPS, 3-year and 5-year Compound Annual Growth Rates (CAGR), historical trend charts, and sector classification. Data is sourced from SEC EDGAR filings and Finnhub API.

How often is the data updated?

Company fundamental data is updated weekly from SEC EDGAR filings. The SEC requires public companies to file quarterly (10-Q) and annual (10-K) reports, which are the primary source of the financial metrics displayed. Finnhub API supplements any gaps in quarterly data.

What are the 11 sectors in the S&P 100?

The S&P 100 companies are classified into 11 GICS (Global Industry Classification Standard) sectors: Information Technology, Health Care, Financials, Consumer Discretionary, Communication Services, Industrials, Consumer Staples, Energy, Utilities, Real Estate, and Materials. You can filter companies by any of these sectors using the filter panel.

S&P 100 Index Directory

Explore all 100 companies in the S&P 100 index. Search by ticker or company name, filter by sector, and compare multiple companies side-by-side with detailed financial metrics and growth trends.

Open Source & Transparent

All data is open source and verifiable on GitHub. We believe in transparency and welcome contributions to improve our tools.

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Understanding the S&P 100 Index

What is the S&P 100?

The S&P 100 is a stock market index of 100 major blue-chip U.S. companies, maintained by Standard & Poor's. It represents approximately 60% of the market capitalization of the S&P 500 and includes only companies with available exchange-traded options.

Companies in the index are typically industry leaders with high liquidity, making it a popular benchmark for large-cap stock performance and a common underlying for index options.

How to Use This Directory

1. Search - Find companies by ticker symbol or name
2. Filter - Narrow results by sector using the filter panel
3. Compare - Select up to 5 companies using the compare icon
4. Explore - Click any ticker to see detailed company profile

Key Financial Metrics

TTM (Trailing Twelve Months)

Sum of financial data from the last four quarters, providing a rolling annual view more current than fiscal year data.

YoY (Year-over-Year)

Percentage change compared to the same period in the prior year, indicating growth or decline trends.

CAGR (Compound Annual Growth Rate)

The mean annual growth rate over multiple years, smoothing out volatility to show sustained growth trends.

Data Sources & Updates

SEC EDGAR Filings

Primary source for revenue and EPS data, extracted from official 10-K (annual) and 10-Q (quarterly) regulatory filings.

Finnhub API

Supplementary data source that fills gaps when SEC filings have incomplete quarterly breakdowns.

Update Frequency

Data is refreshed weekly to incorporate new SEC filings and ensure metrics reflect the most recent information.

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