S&P 100 Index (OEX) Companies by Market Cap
S&P 100 Index (OEX) companies by market cap. The S&P 100 Index (OEX) tracks 101 constituent companies with a combined market cap of $44.08 Trillion, covering the largest publicly traded companies in USA. This ranking lists all OEX index holdings ordered by market capitalization — from the largest index heavyweights to smaller constituents. Updated daily with live market data.
Total Market Cap (USD)
Constituent Companies
Index Country
Top S&P 100 Stocks by Market Capitalization (November 2026)
Top S&P 100 stocks by market capitalization as of November 2026, covering 101 index constituents.
| Rank | Company | Weight (%) | Market Cap (USD) | Sector | Industry | Price | 24h Change |
|---|---|---|---|---|---|---|---|
| 101 |
Charter Communications Inc
NASDAQ:CHTR |
0.10% | $16.31 Billion | Communication Services | Telecom Services | $115.54 | +3.63% |
How S&P 100 Constituents Are Ranked by Market Cap
S&P 100 constituents are ranked by market cap, alongside each company's weight in the index.
Complete list of all companies in the OEX index ranked by market capitalization. Track index constituent performance and market values. View all indices