Volatility indices are are part of synthetic indices found on Deriv broker. These volatility indices consist of V10,25,V75 etc. These are synthetic indices from deriv broker also known as binary.com. Their synthetic indices are created using a cryptographically secure random number generator that has been independently audited for fairness. Natural events and disruptions have no effect on these indices, which are designed to simulate real-world market movement. Synthetic indices are available 24 hours a day, seven days a week, have fixed generation intervals, and are free of market and liquidity risks.