Source: Chicago Board Options Exchange
Release: CBOE Market Statistics
Exchange Traded Funds (ETFs) are shares of trusts that hold portfolios of stocks designed to closely track the price performance and yield of specific indices. Copyright, 2016, Chicago Board Options Exchange, Inc. Reprinted with permission.
Chicago Board Options Exchange, CBOE Emerging Markets ETF Volatility Index [VXEEMCLS], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/VXEEMCLS, February 22, 2018.