The index measures the weighted return performance of a multi-asset strategy that consists of a 75% weight in the S&P 500® Index and a 25% weight in the S&P CME Bitcoin Futures Index. The fund will invest approximately 75% of its assets in the stock of large U.S. companies that comprise the S&P 500® Index and will invest in Bitcoin futures contracts so that the total value of the Bitcoin to which the fund has economic exposure is approximately 25% of the assets of the fund.