Richard A. Ferri, CFA, founder and CEO of Portfolio Solutions, an investment-management firm based in Troy, Michigan, that oversees $800 million in assets. He specializes in building portfolios with index funds and ETFs. He is author of five books on the subject of low-cost investing, including The ETF Book: All You Need to Know About Exchange-Traded Funds (Wiley). www.PortfolioSolutions.com
Exchange-traded funds, which have soared in popularity over the past decade, are attracting extra attention because of a brand-new plus…
