Quantitative Backtesting
Quantitative backtesting is the process of testing a trading strategy using historical market data to determine its viability and performance before risking real capital. By applying rules-based logic to past price action, volume, and order flow, researchers can estimate how a strategy would have performed under various market conditions.
This process helps identify potential pitfalls, such as overfitting, where a strategy is too finely tuned to historical noise and fails in live trading. In the context of derivatives, backtesting must account for transaction costs, slippage, and the impact of the strategy on the market itself.
A robust backtest provides statistical confidence in the strategy's expected return, drawdown, and risk-adjusted performance, serving as a foundational step in systematic trading development.