VIX Index is the CBOE Volatility Index which measures imlied volatility of the S&P500 index options. The VIX is calculated by the CBOE (Chicago Board Options Exchange) and is often referred to as the fear index as it tries to measure the stock market’s anticipated volatility over the next 30 day period. The VIX Index has both put and call options available for weekly trading. The VIX Index strategy was designed in 2004 and has been traded profitability since then. The VIX Index was introduced in 1993. It’s trading symbol is VIX but many trading platforms use ^VIX or .VIX when searching and trading against the VIX Index.