BLDX is an actively managed exchange-traded fund (ETF) that seeks to invest in infrastructure companies vital for maintaining essential global systems and advancing long-term sustainability goals. The fund targets businesses that generate significant revenue from core infrastructure assets, goods, or services across diverse areas such as clean energy, water management, transportation, resource efficiency, and data and communication networks. Portfolio construction integrates thorough fundamental financial analysis with ESG (Environmental, Social, and Governance) considerations deemed financially material by the adviser.