The Mid-Cap Growth Fund is an actively-managed exchange-traded fund (ETF) and pursues its investment objective by using a quality growth investing style. The Mid-Cap Growth Fund invests in a focused portfolio of the common stocks of high-quality companies domiciled in the United States that are engaged in a broad range of industries. Under normal market conditions, the Mid-Cap Growth Fund invests at least 80 percent of its net assets (plus the amount of any borrowings for investment purposes) in securities issued by United States companies having mid-market capitalizations. For this purpose, Motley Fool Asset Management, LLC (the Adviser) currently defines mid-market capitalization companies as having similar market capitalizations to the companies in the Russell Midcap Growth Total Return Index, which is used for the purpose of determining range and not for targeting portfolio management.