Kathleen Moriarty, senior counsel at Chapman and Cutler, was instrumental in bringing to market the first U.S.-listed ETF—the SPDR S&P 500 ETF Trust (SPY)—and numerous groundbreaking products that followed. Her nickname in the industry is “SPDR Woman.” Here, she chats with ETF.com’s Heather Bell about the early days of the ETF industry and her thoughts on a variety of topics, including bitcoin ETFs and single-stock ETFs.