PSI is a passively-managed fund that attempts to beat the industry by selecting and weighting 30 semiconductor companies using a proprietary, quantitative methodology that focuses on risk factors, style classification and stock valuation. Specifically, stocks are evaluated based on five factors: price momentum, earnings momentum, quality, management action, and value. In a heavily concentrated industry, PSI tilts firmly toward smaller growth companies because of its tier-weighting scheme. Thus, it reduces concentrations in mega-caps and evenly weights the group of companies across size. The fund and the index are rebalanced and reconstituted quarterly in February, May, August and November. Prior to August 28, 2023, the ETF's name was Invesco Dynamic Semiconductors ETF.