Mark Sebastian is a former member of both the Chicago Board Options Exchange (CBOE) and the American Stock Exchange (AMEX), where he spent years mastering the art of options trading in the most competitive environment imaginable. As Chief Investment Officer at the hedge fund Karman Line Capital, Mark manages sophisticated options strategies for institutional clients. He is the author of two highly regarded books on options trading: ‘The Option Traders Hedge Fund’ and ‘Trading Options for Edge.’ Mark is a frequent guest on major financial networks including CNBC, Fox Business News, Bloomberg, and First Business News, where he provides expert commentary on market volatility and options strategies.