A former market maker on both the Chicago Board Options Exchange and the American Stock Exchange, Mark Sebastian is the founder of the OptionPit.com and the CIO and founding partner of Karman Line Capital. He is a frequent guest on CNBC, Fox Business News, Bloomberg, First Business News. Mark is also the author of the trading manual ‘The Option Traders Hedge Fund’. He has been published nationally on Yahoo Finance and Barron's, quoted in the The Economist, The Wall Street Journal, Reuters, CNBC, & Bloomberg.