The ETF has approximately $10 billion in assets under management, primarily investing in companies that provide electrical and mechanical services for data center construction in the US, making it a direct tool for betting on hyperscale data center capital expenditures. However, due to its small-cap/mid-cap investment mandate, the September index rebalance may lead to it divesting its best-performing holdings, such as Comfort Systems, which has reached a market capitalization of $61 billion.