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[Discover] CBOE - VIX Volatility Index http://www.cboe.com/micro/vix/introduction.aspx (options trading tradable volatility)
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[Discover] :: Quantnotes.com :: Quantitative Finance (Options, Futures and other Derivatives) http://www.quantnotes.com/ (finance derivatives mathematics quant)
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[Discover] CBOE - Chicago Board Options Exchange http://www.cboe.com/ (usa tradable options exchange)
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