ETF Insider

ETF Insider is a novel data visualization and analytics application for retail investors to identify concentration risk in their investment portfolios. ETF Insider covers mutual funds, ETFs, stocks, bonds, and other assets that are tradable in the US market. It uses these data to, for example, show how different ETFs are constituted and how strongly they overlap. Overlap among ETFs is a common problem as many ETFs track the same or similar indices and rarely publish complete data on all their constituents. This problem can leave retail investors with a higher than intended risk exposure to certain assets.