The Russell 2000 Index, from index provider FTSE Russell, is the recognized benchmark measuring the performance of the small-cap stock segment of the US equity universe. The Russell 2000 Index is a subset of the Russell 3000 Index, representing approximately 10% of the total market capitalization of that index.

The S&P 500 Index, from index provider S&P Dow Jones Indices, is a stock market index that measures the stock performance of 500 large companies listed on stock exchanges in the United States. It is one of the most followed equity indices, viewed by many as the leading barometer of the US stock market.

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