Learning Center
Market Indices
Learn the major U.S. market indices—S&P 500, Nasdaq-100, Dow Jones, and Russell 2000—how each is built, weighted, and used by traders for market context and relative strength.
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What Is the S&P 500?
Float-adjusted large-cap index: weighting, sectors, SPX/SPY, and trader uses.
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What Is the Nasdaq-100?
Top 100 non-financial Nasdaq names: weighting, tech tilt, NDX vs Composite, QQQ.
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What Is the Dow Jones Industrial Average?
30 blue chips, price weighting, DJIA legacy role, and limits versus the S&P 500.
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What Is the Russell 2000?
Small-cap U.S. index: Russell 3000 subset, RUT/IWM use, risk and liquidity differences.
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