Measured by one-month average daily volume.
Data as of 8/30/2019.
Aniket Ullal is the founder and CEO of First Bridge Data, a provider of independent ETF data and analytics to institutional clients. Previously he had product management responsibility for S&P’s U.S. indexes, including the widely followed S&P 500 and S&P/Case-Shiller indexes. He is the author of ETF Investment Strategies (McGraw-Hill, 2013).