The S&P 500 Dynamic Rebalancing Risk Control Index is designed to respond to the volatility of the S&P 500 Index. The S&P 500 Index measures the large capitalization segment of the domestic equity market, composed of stocks of the 500 domestic companies with the largest capitalization. The Index is composed of equity securities of the S&P 500 Index (the “Stock Component”) and fixed income securities, including U.S. Treasury Bills (the “Cash Component”). The Index responds to volatility by establishing a specific volatility target that
adjusts the Index’s components among an allocation to the Stock Component and the Cash Component based upon realized exponentially-weighted historical volatility of the S&P 500 Index. The exponentially-weighted historical volatility calculation weights the more recent historical periods more heavily than older periods. As these volatility targets are met, the Index may be rebalanced as frequently as daily.