VIX Calculation Methodology

Principle

The VIX calculation methodology is based on the principle of model-free implied volatility, deriving a forward-looking measure of market expectations for volatility over a specific period, typically 30 days. It synthesizes information from a broad range of out-of-the-money S&P 500 index options. This methodology captures the market’s perception of future price fluctuations, not historical ones. It provides a real-time gauge of fear or complacency.