Strategy. Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes (if any), in the Energy sector. This is accomplished by investing in the component securities of the Underlying Index or in investments (either directly or indirectly through exchange traded funds (ETFs)) that have, either individually or in the aggregate, economic characteristics that are similar to the economic characteristics of the Underlying Index's component securities. The Fund's 80% investment policy is non-fundamental and requires 60 days prior written notice to shareholders before it can be changed. The Fund may lend securities representing up to one-third of the value of the Funds total assets (including the value of the collateral … Show more… Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes (if any), in the Energy sector. This is accomplished by investing in the component securities of the Underlying Index or in investments (either directly or indirectly through exchange traded funds (ETFs)) that have, either individually or in the aggregate, economic characteristics that are similar to the economic characteristics of the Underlying Index's component securities. The Fund's 80% investment policy is non-fundamental and requires 60 days prior written notice to shareholders before it can be changed. The Fund may lend securities representing up to one-third of the value of the Funds total assets (including the value of the collateral received). The Underlying Index is designed to track the performance of U.S. securities included in the MSCI USA Index that fall within the Energy sector based on the MSCI and S&P Dow Jones Indices' Global Industry Classification Standard (GICS ), as determined by MSCI Inc. (MSCI or the "Index Provider"). As of January 31, 2026, the Underlying Index had 22 constituents with a market capitalization between $21.2 billion and $590.0 billion. The Underlying Index, which rebalances and is reconstituted on a quarterly basis, implements a free float market capitalization weighting methodology that does not impose maximum weight constraints on individual securities, which enables greater exposure to securities classified by GICS as Energy companies than would otherwise be possible if maximum weight constraints were imposed (so-called PureCap exposure to the Energy sector). Free float market capitalization measures a companys market capitalization by multiplying the equitys price by the number of its shares readily available to be traded in the market (free float). As part of the investment strategy, the Fund may also invest in ETFs that track the performance of companies within the Energy sector or companies that, either individually or in the aggregate, invest in securities that collectively have an investment profile similar to the Underlying Index's component securities in terms of key risk factors, performance attributes and other economic characteristics. Rebalancing refers to regular adjustments made to the weights of existing constituents within an index consistent with the methodology of that index, whereas reconstituting refers to the process of adding or removing the constituent securities of an index. The selection of the components of the Underlying Index is made by the Index Provider based on its proprietary methodology. The Funds portfolio is generally rebalanced and reconstituted in accordance with the Underlying Index. As defined by GICS , the Energy sector is comprised of "companies engaged in exploration and production, refining and marketing, and storage and transportation of oil, gas, coal and consumable fuels. It also includes companies that offer oil and gas equipment and services." The Underlying Index is created and sponsored by the Index Provider. Any determinations related to the constituents of the Underlying Index are made by the Index Provider and are independent of the Fund's portfolio managers. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index. The Adviser uses an indexing approach to try to achieve the Fund's investment objective. Unlike many investment companies, the Fund does not try to outperform the Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued. The Fund generally uses a representative sampling strategy with respect to the Underlying Index. "Representative sampling" is an indexing strategy that involves investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index's component securities in terms of key risk factors, performance attributes and other characteristics. These include market capitalization and other financial characteristics of securities. Under normal circumstances, at least 80% of the Fund's net assets, plus the amount of any borrowings for investment purposes (if any), will be invested in (i) component securities of the Underlying Index and (ii) investments that have economic characteristics that, either individually or when combined, are similar to the economic characteristics of such component securities. In seeking to maintain an investment profile similar to the Underlying Index, the Fund may invest in leveraged single-stock ETFs. Leveraged single-stock ETFs seek to deliver multiples of the daily performance of a single security. The Adviser expects that, over time, the correlation between the Fund's performance and that of the Underlying Index, before fees and expenses, will exceed 95%. A correlation percentage of 100% would indicate perfect correlation. The Fund concentrates its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of January 31, 2026, the Underlying Index was concentrated in the oil, gas and consumable fuels industry and had significant exposure to the energy sector. The Fund is classified as non-diversified, which means it may invest a larger percentage of its assets in a smaller number of issuers than a diversified fund. Show less