A plunge in global equity markets has thrown light on an increasingly popular strategy among investors—shorting volatility. The growing use of this trade contributed to the largest fall in some U.S. equity markets since 2011. The Dow Jones Industrial Average fell 4.6% Monday as the VIX—a popular measure of U.S. equity market volatility—surged...

Source: Wall Street Journal February 06, 2018 14:21 UTC