The fund offers global exposure to firms with varying degrees of investment in blockchain technology. Various types of public information are used in this assessment including annual reports, press releases, industry reports, and news outlets. Based upon this research, firms are separated into three tiers of blockchain investment: Active Enablers, which are firms developing blockchain technology, products, or services, either for internal use or for sale, Active Users, firms using blockchain technology, generally supported by an Active Enabler, and Active Explorers, which are firms that have announced their intention to incorporate blockchain into their business, but without at least one active use case or test case. Active Enablers and Active Users are selected for inclusion in BLCK. Holdings are equally divided between Active Enablers and Active Users. Component securities within each grouping are equally weighted. The Index is rebalanced and reconstituted semi-annually.