The VSTOXX Indices are based on EURO STOXX 50 realtime options prices and are designed to reflect the market expectations of near-term up to long-term volatility by measuring the square root of the implied variance across all options of a given time to expiration. The VSTOXX Indices are part of a consistent family of volatility indices: VSTOXX based on the EURO STOXX 50 and VDAX-NEW based on the DAX. In compliance with the ESMA requirements, the components weightings of the VSTOXX index are publicly available here.