WISE is composed of 40 companies that generate more than 50% of their revenue from at least one of the following industries, artificial intelligence or AI-driven services, data analytics & big data, natural language processing. The companies selected for the ETF are represented in an index that uses proprietary algorithms to analyze a broad set of sources and documents to identify and calculate a theme relevance score. The index may include companies of all sizes. Underlying stocks are selected and weighted in the index based on their relevance score. Relevance score calculation is fully rule-based, the index administrator cannot make any discretionary decisions. The index is reconstituted and rebalanced semi-annually in February and August. Additionally, the fund may lend securities representing up to one-third of its total assets.