This exchange-traded fund (ETF) operates under active management, seeking to fulfill its investment aims primarily through allocations to U.S. company equities. The adviser, Grantham, Mayo, Van Otterloo & Co. LLC, known as GMO, identifies and selects these companies for their perceived high quality. The fund's equity holdings principally consist of common and preferred stocks. A smaller portion of its portfolio may also include other equity-related instruments like convertible securities, depositary receipts, equity real estate investment trusts, income trusts, and units of other investment funds with a primary focus on equity investments.