The S&P Small Cap 600 Index: A capitalization weighted small company index created by Standard and Poors to represent smaller firm performance.

The S&P/BARRA Small Cap Growth Index is the half of the S&P Small Cap Index of stocks with higher book-to-price ratio.

The S&P/BARRA Small Cap Value Index tracks the half of the S&P Small Cap Index of stocks with the highest book-to-value ratios.

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