Non-Linear Risk Modeling
Non-linear risk modeling is a quantitative finance approach used to measure how derivative prices and portfolio values change disproportionately relative to movements in underlying asset prices. Unlike linear risks, which assume a constant relationship, non-linear risks account for complex sensitivities known as the Greeks, such as Gamma and Vega.
In options trading, Gamma represents the rate of change of Delta, meaning the portfolio's sensitivity to price increases as the asset moves toward the strike price. Modeling these non-linearities is essential for managing tail risk and extreme market scenarios.
It requires advanced mathematical frameworks to predict how exposure shifts rapidly during periods of high volatility or sudden liquidity gaps.