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What Is ‘Overfitting’ in a Trading Model?

Overfitting occurs when an algorithmic trading model is too closely tailored to the specific noise and random fluctuations of the historical data used for backtesting. This results in a model that performs exceptionally well on past data but fails to generalize and performs poorly when introduced to new, live market data.

Differentiate between Historical Volatility and Implied Volatility
What Is ‘Backtesting’ and What Are Its Main Limitations?
What Is the Role of Historical Volatility in Options Pricing Models?
Differentiate between Historical and Hypothetical Stress Testing Scenarios