The Cboe Skew Index tracks the implied volatility of deep out-of-the-money options – that is, contracts that need a large move in the market before they come into play – on the S&P 500 .SPX. On Friday it surged a massive 9%.

by mark000 CHART of the Cboe Skew Index .SKEWX showing last Friday’s move Article from Thursday: www.nasdaq.com/articles/black-swan-index-flashes-yellow%3A-wall-street-is-not-scared-2019-12-12 NEW YORK, Dec 12 (Reuters) – The options-based Black Swan index may be … Read more