What does the vix index tell us
The new VIX is based on the S&P 500® Index (SPXSM), the core index for U.S. equities, and estimates expected volatility by averaging the weighted prices of SPX puts and calls over a wide range of strike prices. VIX -- The Chicago Board Options Exchange Volatility Index, or VIX, as it is better known, is used by stock and options traders to gauge the market's anxiety level. Put simply, it is a mathematical measure of how much the market thinks the S&P 500 Index option, or SPX, will fluctuate over the next 12 months,