Volga Sensitivity
Volga sensitivity, also known as vomma, measures the sensitivity of an option's vega to changes in implied volatility. It describes how the vega of a position changes as the volatility itself shifts.
Volga is a second-order Greek that is essential for managing portfolios with large exposures to volatility. If a portfolio has high volga, its vega will change rapidly as implied volatility moves, which can lead to unexpected changes in the portfolio's risk profile.
Traders use volga to manage their exposure to volatility of volatility, or vol-of-vol. In the crypto derivatives market, where volatility is highly dynamic, volga is a key metric for institutional players.
It helps in assessing the stability of a volatility-based strategy and in ensuring that the portfolio remains within defined risk parameters. Understanding volga is a hallmark of sophisticated options trading and risk management.