Mark Sebastian is a former member of both the Chicago Board Options Exchange and the American Stock Exchange. He is the CIO of Karman Line Capital. Mark is the resident VIX expert for Mad Money with Jim Cramer. Mark has authored two trading books, "The Option Traders Hedge fund and Trading Options For Edge." He is a frequent guest on CNBC, Fox Business News, Bloomberg, First Business News. Mark has been published nationally on Yahoo Finance, quoted in the Wall Street Journal, Reuters, and Bloomberg. Mark has spoken for The Options Industry Council, the CBOE, the ISE, the CME, and is a co-host on the popular The Option Block podcast and Volatility Views podcast.