What Is Zomma? (DgammaDvol)

What Is Zomma? (DgammaDvol)

By Charles Joseph | Editor, Financial Affairs
Reviewed by Corey Michael | Senior Financial Analyst

Zomma, also known as DgammaDvol, is a financial term that describes how the rate of change of an option’s price (known as gamma) is affected by changes in the option’s implied volatility. In other words, it’s a measure of how sensitive an option’s gamma is to shifts in volatility.

From Options to Zomma: One Step at a Time

Options are financial instruments used to speculate on the price of an underlying asset or hedge against potential price changes.

These assets can be things like stocks, bonds, or commodities.

The price of an option (how much it costs to buy or sell) doesn’t just depend on the price of the underlying asset, it’s also affected by other factors like time until the option can be exercised and the volatility or how much the asset’s price is expected to fluctuate.

Gamma and Zomma (also known as DgammaDvol) are both terms that help traders understand how an option’s price might change under different conditions.

Let’s start with Gamma: In the world of options trading, ‘gamma’ is a measure of how fast the price of an option is expected to move (up or down) for a one-unit (point) change in the price of the underlying asset.

In other words, gamma shows the speed of change of the option’s price.

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Zomma takes it one step further.

While gamma tells us how quickly an option’s price will move, Zomma (or DgammaDvol) tells us how gamma itself changes when the volatility of the underlying asset changes.

Volatility is a measure of how much and how quickly the price of an asset is likely to move.


So, in simpler terms, Zomma is a measure of how sensitive the speed of change of the option’s price (gamma) is to changes in volatility.

If the Zomma is high, it means that small changes in volatility could result in big changes to how quickly the option’s price is moving (the gamma).

This can be crucial information for traders when planning their trading strategies, especially in volatile markets.

Key Takeaways

  • Zomma is an advanced risk parameter in finance that indicates the effect of implied volatility changes on an option’s gamma.
  • Being the third-order option price sensitivity, Zomma is a powerful quantitative measure for more sophisticated investors and traders.
  • The various risk parameters, also known as the “Greeks,” are essential tools in analyzing and understanding options behavior under fluctuating market conditions.
  • Though not as widely recognized as other “Greeks,” such as Delta and Gamma, Zomma can provide crucial insights into option risks and hedging strategies.
  • Zomma adds to a deeper understanding of financial complexities and can provide investors with an effective mechanism for decision-making and risk management.

Related Questions

1. What are “Greeks” in the context of finance and options trading?

“Greeks” are the commonly used risk parameters in finance that help assess the sensitivity of an option’s price to various factors, such as price, time, and volatility. They enable investors to better understand the behavior of options and manage associated risks under different situations.

2. What is the primary purpose of Zomma in options trading?

The primary purpose of Zomma is to measure how the gamma of an option is impacted by changes in its implied volatility. This metric can be an insightful addition to investors’ analysis when developing and optimizing hedging strategies involving options.

3. How is Zomma calculated?

Zomma is calculated as the partial derivative of an option’s gamma concerning the change in implied volatility. It’s a complex mathematical equation and typically requires sophisticated computational tools to derive its value.

4. Can Zomma be used for risk management purposes?

Yes, Zomma can be used for risk management purposes since it helps investors gauge how an option’s gamma is influenced by volatility changes. If used correctly, this information can contribute to the efficient valuation and management of risks in an investment portfolio containing options.

5. What are some examples of other “Greeks” besides Zomma?

Some other notable “Greeks” in options trading include Delta, which measures how an option’s price changes due to a change in the underlying asset’s price; Gamma, indicating how much an option’s delta changes due to the same price changes; and Theta, representing the rate of change of an option’s price given a unit of time.