Standard & Poor's/Citigroup Growth and Value Indexes

Standard & Poor's/Citigroup Growth and Value Indexes. To provide benchmarks for specific investment styles, Standard & Poor's offers complementary sets of style indexes for the US market that subdivide the S&P 500, the S&P MidCap 400, the S&P SmallCap 600, the Composite 1500, the S&P 1000, and the S&P 900 into to growth and value segments.

One set, called the style index series, divides each of the indexes into approximately equal halves, with one half comprising growth stocks and the other value stocks. Stocks that don't fit clearly into either category are distributed between growth and value.

The other set, called the pure style index series, tracks only those stocks that fit clearly into the growth category or the value category. Stocks in these indexes are weighted by their style scores rather than their market cap to eliminate the impact of size on the index return.