The VIX Index is a calculation designed to produce a measure of constant, 30-day expected volatility of the U.S. stock market, derived from real-time, mid-quote prices of S&P 500® Index (SPX SM) call and put options. On a global basis, it is one of the most recognized measures of volatility -- widely reported by financial media and closely Forex Volatility Charts Live - Today, This Week, This Month, USD, EUR, JPY, GBP, CHF, CAD, AUD, NZD. Forex volatility charts tell you which currency is most volatile relative to each other. View live Volatility S&P 500 Index chart to track latest price changes. Trade ideas, forecasts and market news are at your disposal as well. View live Volatility S&P 500 Index chart to track latest price changes. Trade ideas, forecasts and market news are at your disposal as well.