Gamma or Convexity Risk: the rate of change in the delta itself, or the change in the delta for a one point move in the underlying price. It allows for situations where there is a non-linear relationship between the price of the underlying instrument and the value of the portfolio.Vega or Volatility Risk:36 this risk applies when an option is involved, or a product has characteristics similar to an option. It is the sensitivity of the option price for a given change in the value of volatility. An increase in volatility of the underlying asset makes the option more valuable. Therefore, if the market’s view of the volatility of the underlying instrument changes, so too will the value of the option.
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