VIX:VXV Ratio Now Below 0.75: What Does This Mean For The Stock Market?

 | Sep 01, 2017 03:25PM ET


Today the VIX:CBOE S&P500 3-M Volitlity ratio dropped below 0.75. What does this ratio mean and why should we care? To answer the first question. Everybody knows the VIX. It is the volatility index, which measures one-month implied volatility. The VXV ratio, however, is lesser known and measures the 3-month implied volatility. It therefore tends to be less volatile than the VIX. The ratio between the two tells us if expected near term volatility exceeds longer term expected volatility and vice versa. Hence a high ratio (>1.25) means a high current volatility, but expected lower volatility 3 months out, whereas a low ratio (<0.75) means traders and investors expect very little to worry about 3 months out. These extreme high and low readings often coincide with bottoms and tops, respectively (see Figure below)