Parameter Sensitivity

Parameter sensitivity measures how much a model's output changes in response to small variations in its input parameters. In options trading, this is closely related to the Greeks, such as delta and gamma.

If a model is highly sensitive, a tiny change in an input can lead to a massive change in the output, making the model unstable. Traders need to understand this sensitivity to manage the risk of their positions effectively.

Models with high parameter sensitivity are often more prone to errors and require more careful monitoring. Analyzing sensitivity helps traders identify the most critical inputs and allocate their attention accordingly.

It is a key part of rigorous quantitative finance and risk management.