only shares that are readily available for trading in the market) and three month average daily trading volume are included in the Oil Services Index. As of December 31, 2021, the Oil Services Index included 25 securities of companies with a market capitalization range of between approximately $305 million and $42 billion and a weighted average market capitalization of $14.4 billion. These amounts are subject to change. The Funds 80% investment policy is non-fundamental and may be changed without shareholder approval upon 60 days prior written notice to shareholders.