DEFINITION
A method of managing risk in options trading by establishing a hedge against the implied volatility of the underlying asset. A vega neutral option position will be not be sensitive to volatility fluctuations. These strategies are used to hedge against the risks of price sensitivity, secondorder time price sensitivity and time sensitivity, respectively.INVESTOPEDIA EXPLAINS
A vega neutral portfolio is still subject to risk. For example, in a portfolio of options maturing at different times, changes in volatility over time can dramatically affect total returns, making the portfolio sensitive to time vega. Furthermore, if the assumptions used to establish a position turn out to be incorrect, a position that is intended to be neutral can actually be risky. Vega is one of the "options Greeks" along with delta, gamma, rho and theta. These are used to measure different types of risk in options portfolios. Other options riskmanagement positions include delta neutral, gamma neutral and theta neutral.RELATED TERMS

Theta
A measure of the rate of decline in the value of an option due to the passage ... 
Rho
The rate at which the price of a derivative changes relative to a change in ... 
Gamma
The rate of change for delta with respect to the underlying asset's price. Gamma ... 
Gamma Neutral
A method of managing risk in options trading by establishing an asset portfolio ... 
Hedge
Making an investment to reduce the risk of adverse price movements in an asset. ... 
Greeks
Dimensions of risk involved in taking a position in an option (or other derivative). ... 
Vega
The measurement of an option's sensitivity to changes in the volatility of the ... 
Maturity
The period of time for which a financial instrument remains outstanding. Maturity ... 
Volatility
1. A statistical measure of the dispersion of returns for a given security or ... 
Option
A financial derivative that represents a contract sold by one party (option ...
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