The index uses an objective, rules-based methodology to implement a systematic trend-following strategy that directs exposure to one of the following positions: (i) 100% to the S&P U.S. High Yield Corporate Bond Index, (ii) 50% to the S&P U.S. High Yield Corporate Bond Index and 50% to the S&P U.S. Treasury Bond 7-10 Year Index or (iii) 100% to S&P U.S. Treasury Bond 7-10 Year Index, depending on the “Risk Ratio". Normally at least 80% of the fund's total assets will be invested in the component securities of the index.