Volga

Volga, also known as vol-of-vol or vomma, is a second-order Greek that measures the sensitivity of an option vega to changes in implied volatility. It tells a trader how their vega exposure will change as the implied volatility itself changes.

Volga is critical for managing the risk of volatility-sensitive portfolios, especially when dealing with large changes in market expectations. If a trader has a large vega position, they need to know how that position will react to shifts in the volatility environment.

Volga provides this insight. It is a measure of the convexity of the vega profile.

High volga implies that the vega of a position is highly sensitive to volatility moves. This is important for traders who are long or short volatility, as it helps them anticipate the impact of volatility shocks on their portfolio value.

Volga is a key metric in the world of exotic options and volatility trading. It represents a deeper level of risk sensitivity than simple vega.

Understanding volga is essential for professional risk management in derivative markets.