VIX: What Is the CBOE Volatility Index? The Motley Fool
At that time, the index was measured as a weighted average of the implied volatility of the total eight options of the 30 days S&P 100 index. Later in the year 2003, CBOE worked in collision with Goldman Sachs and replaced the S&P 100 index with the S & P 500 index. Further, futures and options were introduced for VIX…