The Share Class is passively managed and aims to invest so far as possible and practicable in the equity securities (e.g. shares) that make up the Index. The S&P 500 Top 20 Select 35/20 Capped Index measures the performance of the largest 20 companies in the S&P 500 Index. The S&P 500 Index measures the performance of 500 stocks from top US companies in leading industries of the US economy which comply with S&Ps size, liquidity and free-float criteria.